feat(UI-Overhaul-Phase2): AI Assistent in Kommunikation integriert

Migration 0137: Drop AI chat tables (ai_chat_sessions, ai_chat_messages, ai_chat_attachments, ai_conversations, ai_messages)

Backend:
- Remove AIChatSession, AIChatMessage, AIChatAttachment models from ai_assistant/models.py
- Remove AIConversation, AIMessage from app/models/__init__.py
- Remove session/message/stream/attachment routes from ai_assistant/routes.py
- Add new streaming route POST /ai/conversations/{conversation_id}/stream using comm tables
- Add new messages route GET /ai/conversations/{conversation_id}/messages using comm tables
- Add stream_chat_comm, get_comm_messages, save_comm_message to services.py
- Update external_api.py to use CommConversation/CommMessage instead of AIChatSession/AIChatMessage
- Update unified_search ai_chat_provider to search comm_messages with conversation_type=ai
- Remove ai_copilot router from main.py and routes/__init__.py
- Remove ai_conversation from entity_permissions.py and owner_transfer_service.py
- Update ai_assistant/plugin.py get_entity_models to remove AIChatSession
- Guard ai_copilot_service.py imports with try/except

Frontend:
- Remove AIAssistant.tsx, AIAssistantStandalone.tsx, SessionList.tsx, ChatWindow.tsx
- Remove AI Assistant routes from routes/index.tsx
- Update api/ai.ts: streamChat uses /ai/conversations/{id}/stream, fetchMessages uses /ai/conversations/{id}/messages
- Update Communication.tsx: use convId for AI streaming, remove aiSessionId, use fetchAiMessages for AI conversations
- Update AiChatPanel.tsx: create comm conversation instead of AI session, use new fetchMessages
- Update AISidebar.tsx: remove ChatWindow import, show placeholder

tsc clean, build successful, backend import OK

alembic/versions/0137_drop_ai_chat_tables.py

@@ -0,0 +1,34 @@
+"""Drop AI chat tables (migrated to comm conversations)
+
+Revision ID: 0137
+Revises: 0136
+Create Date: 2026-08-21
+
+AI chat functionality is now handled by the kommunikation plugin's
+comm_conversations and comm_messages tables. The old AI-specific tables
+(ai_chat_sessions, ai_chat_messages, ai_chat_attachments, ai_conversations,
+ai_messages) are no longer needed and are dropped.
+"""
+
+from alembic import op
+import sqlalchemy as sa
+
+# revision identifiers, used by Alembic.
+revision = "0137"
+down_revision = "0136"
+branch_labels = None
+depends_on = None
+
+
+def upgrade() -> None:
+    # Use IF EXISTS to avoid errors if tables are already gone
+    op.execute("DROP TABLE IF EXISTS ai_chat_attachments CASCADE")
+    op.execute("DROP TABLE IF EXISTS ai_chat_messages CASCADE")
+    op.execute("DROP TABLE IF EXISTS ai_chat_sessions CASCADE")
+    op.execute("DROP TABLE IF EXISTS ai_messages CASCADE")
+    op.execute("DROP TABLE IF EXISTS ai_conversations CASCADE")
+
+
+def downgrade() -> None:
+    # Tables cannot be restored — data was migrated or was empty.
+    pass

app/main.py

@@ -31,7 +31,6 @@ from app.core.service_container import get_container  # noqa: E402
 from app.plugins.registry import get_registry  # noqa: E402
 from app.routes import (  # noqa: E402
     addresses,
-    ai_copilot,
     api_tokens,
     approvals,
     attachments,
@@ -555,7 +554,6 @@ def create_app() -> FastAPI:
     app.include_router(entity_history.router)
     app.include_router(import_export.router)
     app.include_router(plugins.router)
-    app.include_router(ai_copilot.router)
     app.include_router(workflows.router)
     app.include_router(user_preferences.router)
     app.include_router(currencies.router)

app/models/__init__.py

@@ -1,7 +1,6 @@
 """SQLAlchemy models for LeoCRM."""
 
 from app.models.address import Address
-from app.models.ai_conversation import AIConversation, AIMessage
 from app.models.attachment import Attachment
 from app.models.audit import AuditLog
 from app.models.auth import ApiToken, PasswordResetToken
@@ -69,8 +68,6 @@ __all__ = [
     "BankAccount",
     "Plugin",
     "PluginMigration",
-    "AIConversation",
-    "AIMessage",
     "Backup",
     "CustomFieldDefinition",
     "Webhook",

app/plugins/builtins/ai_assistant/external_api.py

@@ -80,26 +80,29 @@ async def run_agent_external(
 
     # Create or find a session for this external interaction
 
-    from app.plugins.builtins.ai_assistant.models import AIChatMessage, AIChatSession
+    # AIChatSession/AIChatMessage removed — using comm tables
 
-    session = AIChatSession(
-        user_id=uuid.UUID(current_user["user_id"]),
-        agent_id=agent.id,
-        title=f"External: {data.message[:50]}" if data.message else "External Agent Run",
-        is_sidebar=False,
+    # Create a comm conversation for this external interaction
+    from app.plugins.builtins.kommunikation.models import CommConversation
+    session = CommConversation(
         tenant_id=tenant_id,
+        title=f"External: {data.message[:50]}" if data.message else "External Agent Run",
         owner_id=uuid.UUID(current_user["user_id"]),
+        created_by=uuid.UUID(current_user["user_id"]),
+        created_by_type="user",
+        metadata_={"conversation_type": "ai", "agent_id": str(agent.id)},
     )
     db.add(session)
     await db.flush()
 
     # Store the user message
-    user_msg = AIChatMessage(
-        session_id=session.id,
-        role="user",
+    from app.plugins.builtins.kommunikation.models import CommMessage
+    user_msg = CommMessage(
+        conversation_id=session.id,
+        sender_id=uuid.UUID(current_user["user_id"]),
+        sender_type="user",
         content=data.message,
-        tokens=0,
-        model_used=agent.name or "external",
+        content_format="text",
         tenant_id=tenant_id,
     )
     db.add(user_msg)
@@ -117,7 +120,7 @@ async def run_agent_external(
     }
 
     # Run the agent via streaming chat (non-streaming mode)
-    from app.plugins.builtins.ai_assistant.services import stream_chat
+    from app.plugins.builtins.ai_assistant.services import stream_chat_comm
 
     full_response = ""
     async with get_db() as stream_db:
@@ -250,15 +253,16 @@ async def stream_agent_external(
         raise HTTPException(status_code=400, detail="Agent is not active")
 
     # Create session
-    from app.plugins.builtins.ai_assistant.models import AIChatSession
+    # AIChatSession removed — using comm tables
 
-    session = AIChatSession(
-        user_id=uuid.UUID(current_user["user_id"]),
-        agent_id=agent.id,
-        title=f"External Stream: {data.message[:50]}" if data.message else "External Agent Stream",
-        is_sidebar=False,
+    from app.plugins.builtins.kommunikation.models import CommConversation
+    session = CommConversation(
         tenant_id=tenant_id,
+        title=f"External Stream: {data.message[:50]}" if data.message else "External Agent Stream",
         owner_id=uuid.UUID(current_user["user_id"]),
+        created_by=uuid.UUID(current_user["user_id"]),
+        created_by_type="user",
+        metadata_={"conversation_type": "ai", "agent_id": str(agent.id)},
     )
     db.add(session)
     await db.commit()
@@ -274,15 +278,15 @@ async def stream_agent_external(
         "field_permissions": current_user.get("field_permissions", {}),
     }
 
-    from app.plugins.builtins.ai_assistant.services import stream_chat
+    from app.plugins.builtins.ai_assistant.services import stream_chat_comm
 
     async def event_stream():
         from app.core.db import get_session_factory
         factory = get_session_factory()
         async with factory() as stream_db:
             await set_tenant_context(stream_db, tenant_id)
-            async for chunk in stream_chat(
-                stream_db, session, agent, data.message, user_context, tenant_id
+            async for chunk in stream_chat_comm(
+                stream_db, session.id, agent, data.message, user_context, tenant_id, uuid.UUID(current_user["user_id"])
             ):
                 yield chunk
         yield "data: [DONE]\n\n"

app/plugins/builtins/ai_assistant/models.py

@@ -134,64 +134,6 @@ class AIAgent(Base, TenantMixin, OwnedMixin):
     config: Mapped[dict] = mapped_column(JSONB, nullable=False, default=dict)
 
 
-# --- Chat Sessions ---
-
-class AIChatSession(Base, TenantMixin, OwnedMixin):
-    """Chat session for a user with a specific agent."""
-
-    __tablename__ = "ai_chat_sessions"
-    __table_args__ = (
-        Index("ix_ai_sessions_user", "user_id"),
-        Index("ix_ai_sessions_tenant", "tenant_id"),
-    )
-
-    id: Mapped[uuid.UUID] = mapped_column(
-        PGUUID(as_uuid=True), primary_key=True, default=uuid.uuid4
-    )
-    user_id: Mapped[uuid.UUID] = mapped_column(PGUUID(as_uuid=True), nullable=False)
-    agent_id: Mapped[uuid.UUID | None] = mapped_column(
-        PGUUID(as_uuid=True),
-        ForeignKey("ai_agents.id", ondelete="SET NULL"),
-        nullable=True,
-    )
-    title: Mapped[str] = mapped_column(String(255), nullable=False, default="Neuer Chat")
-    is_pinned: Mapped[bool] = mapped_column(Boolean, nullable=False, default=False)
-    is_sidebar: Mapped[bool] = mapped_column(Boolean, nullable=False, default=False)
-    folder_id: Mapped[uuid.UUID | None] = mapped_column(
-        PGUUID(as_uuid=True),
-        ForeignKey("ai_chat_folders.id", ondelete="SET NULL"),
-        nullable=True,
-    )
-    sort_order: Mapped[int] = mapped_column(Integer, nullable=False, default=0)
-
-
-# --- Chat Messages ---
-
-class AIChatMessage(Base, TenantMixin, OwnedMixin):
-    """Individual message in a chat session."""
-
-    __tablename__ = "ai_chat_messages"
-    __table_args__ = (
-        Index("ix_ai_messages_session", "session_id"),
-        Index("ix_ai_messages_tenant", "tenant_id"),
-    )
-
-    id: Mapped[uuid.UUID] = mapped_column(
-        PGUUID(as_uuid=True), primary_key=True, default=uuid.uuid4
-    )
-    session_id: Mapped[uuid.UUID] = mapped_column(
-        PGUUID(as_uuid=True),
-        ForeignKey("ai_chat_sessions.id", ondelete="CASCADE"),
-        nullable=False,
-    )
-    role: Mapped[str] = mapped_column(String(20), nullable=False)
-    content: Mapped[str] = mapped_column(Text, nullable=False, default="")
-    tool_calls: Mapped[dict | None] = mapped_column(JSONB, nullable=True)
-    tool_results: Mapped[dict | None] = mapped_column(JSONB, nullable=True)
-    tokens: Mapped[int] = mapped_column(Integer, nullable=False, default=0)
-    model_used: Mapped[str] = mapped_column(String(200), nullable=False, default="")
-
-
 # --- Chat Folders ---
 
 class AIChatFolder(Base, TenantMixin, OwnedMixin):
@@ -215,34 +157,3 @@ class AIChatFolder(Base, TenantMixin, OwnedMixin):
     )
     user_id: Mapped[uuid.UUID] = mapped_column(PGUUID(as_uuid=True), nullable=False)
     sort_order: Mapped[int] = mapped_column(Integer, nullable=False, default=0)
-
-
-# --- Chat Attachments ---
-
-class AIChatAttachment(Base, TenantMixin, OwnedMixin):
-    """File attached to a chat message."""
-
-    __tablename__ = "ai_chat_attachments"
-    __table_args__ = (
-        Index("ix_ai_attachments_message", "message_id"),
-        Index("ix_ai_attachments_session", "session_id"),
-        Index("ix_ai_attachments_tenant", "tenant_id"),
-    )
-
-    id: Mapped[uuid.UUID] = mapped_column(
-        PGUUID(as_uuid=True), primary_key=True, default=uuid.uuid4
-    )
-    message_id: Mapped[uuid.UUID | None] = mapped_column(
-        PGUUID(as_uuid=True),
-        ForeignKey("ai_chat_messages.id", ondelete="CASCADE"),
-        nullable=True,
-    )
-    session_id: Mapped[uuid.UUID] = mapped_column(
-        PGUUID(as_uuid=True),
-        ForeignKey("ai_chat_sessions.id", ondelete="CASCADE"),
-        nullable=False,
-    )
-    filename: Mapped[str] = mapped_column(String(255), nullable=False)
-    mime_type: Mapped[str] = mapped_column(String(255), nullable=False, default="application/octet-stream")
-    size_bytes: Mapped[int] = mapped_column(Integer, nullable=False, default=0)
-    storage_path: Mapped[str] = mapped_column(String(1024), nullable=False)

app/plugins/builtins/ai_assistant/plugin.py

@@ -78,8 +78,8 @@ class AIAssistantPlugin(BasePlugin):
         await seed_defaults(db)
 
     def get_entity_models(self) -> dict[str, type]:
-        from app.plugins.builtins.ai_assistant.models import AIAgent, AIChatSession
-        return {"ai_agent": AIAgent, "ai_chat_session": AIChatSession}
+        from app.plugins.builtins.ai_assistant.models import AIAgent
+        return {"ai_agent": AIAgent}
 
     async def on_activate(self, db, service_container, event_bus) -> None:
         """Activate plugin: register CRM API tool and participant handler."""

app/plugins/builtins/ai_assistant/routes.py

@@ -6,20 +6,16 @@ from __future__ import annotations
 
 import uuid
 
-import aiofiles
-from fastapi import APIRouter, Depends, HTTPException, Query, Request, UploadFile
-from fastapi.responses import FileResponse, StreamingResponse
+from fastapi import APIRouter, Depends, HTTPException, Query, Request
+from fastapi.responses import StreamingResponse
 from sqlalchemy import select
 from sqlalchemy.ext.asyncio import AsyncSession
 
 from app.core.db import get_db, set_tenant_context
-from app.core.visibility import apply_visibility_filter
 from app.deps import get_current_user, require_permission
 from app.plugins.builtins.ai_assistant.models import (
     AIAgent,
-    AIChatAttachment,
     AIChatFolder,
-    AIChatSession,
     AIModel,
     AIPreset,
     AIProvider,
@@ -36,25 +32,19 @@ from app.plugins.builtins.ai_assistant.schemas import (
     ChatFolderCreate,
     ChatFolderUpdate,
     ChatSendRequest,
-    ChatSessionCreate,
-    ChatSessionUpdate,
 )
 from app.plugins.builtins.ai_assistant.services import (
     agent_to_response,
-    attachment_to_response,
     folder_to_response,
     get_agent_by_id,
+    get_comm_messages,
     get_default_agent,
     get_preset_by_id,
     get_provider_by_id,
-    get_session_by_id,
-    get_session_messages,
-    message_to_response,
     model_to_response,
     preset_to_response,
     provider_to_response,
-    session_to_response,
-    stream_chat,
+    stream_chat_comm,
 )
 from app.plugins.builtins.ai_assistant.tool_registry import get_tool_registry
 
@@ -417,207 +407,6 @@ async def list_tools(
     return {"items": items, "total": len(items)}
 
 
-# ─── Chat Sessions ───
-
-@router.get("/sessions", dependencies=[Depends(require_permission("ai:read"))])
-async def list_sessions(
-    is_sidebar: bool | None = Query(None),
-    current_user: dict = Depends(get_current_user),
-    db: AsyncSession = Depends(get_db),
-):
-    tenant_id = uuid.UUID(current_user["tenant_id"])
-    user_id = uuid.UUID(current_user["user_id"])
-    is_system_admin = current_user.get("is_system_admin", False)
-    stmt = (
-        select(AIChatSession)
-        .where(AIChatSession.tenant_id == tenant_id)
-    )
-    stmt = await apply_visibility_filter(
-        db, stmt, "ai_chat_session", AIChatSession, user_id, tenant_id, is_system_admin
-    )
-    if is_sidebar is not None:
-        stmt = stmt.where(AIChatSession.is_sidebar == is_sidebar)
-    stmt = stmt.order_by(AIChatSession.updated_at.desc())
-    result = await db.execute(stmt)
-    sessions = list(result.scalars().all())
-    return [session_to_response(s) for s in sessions]
-
-
-@router.post("/sessions", dependencies=[Depends(require_permission("ai:write"))])
-async def create_session(
-    data: ChatSessionCreate,
-    current_user: dict = Depends(get_current_user),
-    db: AsyncSession = Depends(get_db),
-):
-    tenant_id = uuid.UUID(current_user["tenant_id"])
-    user_id = uuid.UUID(current_user["user_id"])
-    await set_tenant_context(db, tenant_id)
-
-    agent_id = None
-    if data.agent_id:
-        agent_id = uuid.UUID(data.agent_id)
-    elif not data.is_sidebar:
-        # Use default agent for non-sidebar sessions
-        default_agent = await get_default_agent(db, tenant_id)
-        if default_agent:
-            agent_id = default_agent.id
-    else:
-        # Sidebar also gets default agent
-        default_agent = await get_default_agent(db, tenant_id)
-        if default_agent:
-            agent_id = default_agent.id
-
-    folder_id = None
-    if data.folder_id:
-        folder_id = uuid.UUID(data.folder_id)
-
-    session = AIChatSession(
-        user_id=user_id,
-        agent_id=agent_id,
-        title=data.title,
-        is_sidebar=data.is_sidebar,
-        folder_id=folder_id,
-        tenant_id=tenant_id,
-        owner_id=user_id,
-    )
-    db.add(session)
-    await db.commit()
-    await db.refresh(session)
-    return session_to_response(session)
-
-
-@router.put("/sessions/{session_id}", dependencies=[Depends(require_permission("ai:write"))])
-async def update_session(
-    session_id: str,
-    data: ChatSessionUpdate,
-    current_user: dict = Depends(get_current_user),
-    db: AsyncSession = Depends(get_db),
-):
-    tenant_id = uuid.UUID(current_user["tenant_id"])
-    user_id = uuid.UUID(current_user["user_id"])
-    session = await get_session_by_id(db, uuid.UUID(session_id), user_id, tenant_id)
-    if not session:
-        raise HTTPException(status_code=404, detail="Session not found")
-
-    update_data = data.model_dump(exclude_unset=True)
-    if "agent_id" in update_data and update_data["agent_id"]:
-        update_data["agent_id"] = uuid.UUID(update_data["agent_id"])
-    if "folder_id" in update_data:
-        if update_data["folder_id"]:
-            update_data["folder_id"] = uuid.UUID(update_data["folder_id"])
-        else:
-            update_data["folder_id"] = None
-    for field, val in update_data.items():
-        setattr(session, field, val)
-    await db.commit()
-    await db.refresh(session)
-    return session_to_response(session)
-
-
-@router.delete("/sessions/{session_id}", dependencies=[Depends(require_permission("ai:write"))])
-async def delete_session(
-    session_id: str,
-    current_user: dict = Depends(get_current_user),
-    db: AsyncSession = Depends(get_db),
-):
-    tenant_id = uuid.UUID(current_user["tenant_id"])
-    user_id = uuid.UUID(current_user["user_id"])
-    session = await get_session_by_id(db, uuid.UUID(session_id), user_id, tenant_id)
-    if not session:
-        raise HTTPException(status_code=404, detail="Session not found")
-    await db.delete(session)
-    await db.commit()
-    return {"ok": True}
-
-
-# ─── Chat Messages ───
-
-@router.get("/sessions/{session_id}/messages", dependencies=[Depends(require_permission("ai:read"))])
-async def list_messages(
-    session_id: str,
-    current_user: dict = Depends(get_current_user),
-    db: AsyncSession = Depends(get_db),
-):
-    tenant_id = uuid.UUID(current_user["tenant_id"])
-    user_id = uuid.UUID(current_user["user_id"])
-    session = await get_session_by_id(db, uuid.UUID(session_id), user_id, tenant_id)
-    if not session:
-        raise HTTPException(status_code=404, detail="Session not found")
-
-    messages = await get_session_messages(db, session.id, tenant_id)
-    return [message_to_response(m) for m in messages]
-
-
-# ─── Streaming Chat ───
-
-@router.post("/sessions/{session_id}/stream", dependencies=[Depends(require_permission("ai:write"))])
-async def chat_stream(
-    session_id: str,
-    data: ChatSendRequest,
-    request: Request,
-    current_user: dict = Depends(get_current_user),
-    db: AsyncSession = Depends(get_db),
-):
-    tenant_id = uuid.UUID(current_user["tenant_id"])
-    user_id = uuid.UUID(current_user["user_id"])
-
-    # Rate limit — AI policy (cost-sensitive LLM call)
-    from app.core.rate_limit import RateLimitPolicy, check_rate_limit_policy
-    await check_rate_limit_policy(
-        f"rate:ai:chat:{tenant_id}:{user_id}",
-        RateLimitPolicy.AI,
-    )
-
-    await set_tenant_context(db, tenant_id)
-    session = await get_session_by_id(db, uuid.UUID(session_id), user_id, tenant_id)
-    if not session:
-        raise HTTPException(status_code=404, detail="Session not found")
-
-    # Get agent
-    agent = None
-    if data.agent_id:
-        agent = await get_agent_by_id(db, uuid.UUID(data.agent_id), tenant_id)
-    elif session.agent_id:
-        agent = await get_agent_by_id(db, session.agent_id, tenant_id)
-    if not agent:
-        agent = await get_default_agent(db, tenant_id)
-    if not agent:
-        raise HTTPException(status_code=400, detail="No agent available")
-
-    # Build user context for RBAC checks in tools
-    user_context = {
-        "user_id": current_user["user_id"],
-        "tenant_id": current_user["tenant_id"],
-        "role": current_user.get("role", ""),
-        "permissions": current_user.get("permissions", []),
-        "denied_permissions": current_user.get("denied_permissions", []),
-        "is_system_admin": current_user.get("is_system_admin", False),
-        "field_permissions": current_user.get("field_permissions", {}),
-    }
-
-    async def event_stream():
-        # Use a fresh DB session — the Depends(get_db) session closes after response
-        from app.core.db import get_session_factory
-        factory = get_session_factory()
-        async with factory() as stream_db:
-            await set_tenant_context(stream_db, tenant_id)
-            async for chunk in stream_chat(
-                stream_db, session, agent, data.content, user_context, tenant_id
-            ):
-                yield chunk
-        yield "data: [DONE]\n\n"
-
-    return StreamingResponse(
-        event_stream(),
-        media_type="text/event-stream",
-        headers={
-            "Cache-Control": "no-cache",
-            "Connection": "keep-alive",
-            "X-Accel-Buffering": "no",
-        },
-    )
-
-
 # ─── Chat Folders ───
 
 @router.get("/folders", dependencies=[Depends(require_permission("ai:read"))])
@@ -713,93 +502,78 @@ async def delete_folder(
     return {"ok": True}
 
 
-# ─── Attachments ───
+# ─── AI Chat Streaming (via comm_conversations) ───
 
-import os  # noqa: E402
-from pathlib import Path  # noqa: E402
-
-ATTACHMENT_DIR = Path(os.environ.get("STORAGE_PATH", "/data/storage")) / "ai_attachments"
-MAX_ATTACHMENT_SIZE = 25 * 1024 * 1024  # 25MB
-
-
-@router.post("/sessions/{session_id}/attachments", response_model=None, dependencies=[Depends(require_permission("ai:write"))])
-async def upload_attachment(
-    session_id: str,
-    file: UploadFile,
+@router.post("/conversations/{conversation_id}/stream", dependencies=[Depends(require_permission("ai:write"))])
+async def chat_stream_comm(
+    conversation_id: str,
+    data: ChatSendRequest,
+    request: Request,
     current_user: dict = Depends(get_current_user),
     db: AsyncSession = Depends(get_db),
 ):
+    """Stream AI chat response for a comm conversation with conversation_type='ai'."""
     tenant_id = uuid.UUID(current_user["tenant_id"])
     user_id = uuid.UUID(current_user["user_id"])
-    session = await get_session_by_id(db, uuid.UUID(session_id), user_id, tenant_id)
-    if not session:
-        raise HTTPException(status_code=404, detail="Session not found")
 
-    content = await file.read()
-    if len(content) > MAX_ATTACHMENT_SIZE:
-        raise HTTPException(status_code=413, detail="File too large (max 25MB)")
-
-    ATTACHMENT_DIR.mkdir(parents=True, exist_ok=True)
-    file_id = str(uuid.uuid4())
-    safe_filename = file.filename or "unnamed"
-    storage_path = str(ATTACHMENT_DIR / f"{file_id}_{safe_filename}")
-    async with aiofiles.open(storage_path, "wb") as f:
-        await f.write(content)
-
-    attachment = AIChatAttachment(
-        session_id=session.id,
-        filename=safe_filename,
-        mime_type=file.content_type or "application/octet-stream",
-        size_bytes=len(content),
-        storage_path=storage_path,
-        tenant_id=tenant_id,
+    from app.core.rate_limit import RateLimitPolicy, check_rate_limit_policy
+    await check_rate_limit_policy(
+        f"rate:ai:chat:{tenant_id}:{user_id}",
+        RateLimitPolicy.AI,
+    )
+
+    await set_tenant_context(db, tenant_id)
+
+    agent = None
+    if data.agent_id:
+        agent = await get_agent_by_id(db, uuid.UUID(data.agent_id), tenant_id)
+    if not agent:
+        agent = await get_default_agent(db, tenant_id)
+    if not agent:
+        raise HTTPException(status_code=400, detail="No agent available")
+
+    user_context = {
+        "user_id": current_user["user_id"],
+        "tenant_id": current_user["tenant_id"],
+        "role": current_user.get("role", ""),
+        "permissions": current_user.get("permissions", []),
+        "denied_permissions": current_user.get("denied_permissions", []),
+        "is_system_admin": current_user.get("is_system_admin", False),
+        "field_permissions": current_user.get("field_permissions", {}),
+    }
+
+    async def event_stream():
+        from app.core.db import get_session_factory
+        factory = get_session_factory()
+        async with factory() as stream_db:
+            await set_tenant_context(stream_db, tenant_id)
+            async for chunk in stream_chat_comm(
+                stream_db, uuid.UUID(conversation_id), agent, data.content, user_context, tenant_id, user_id
+            ):
+                yield chunk
+        yield "data: [DONE]\n\n"
+
+    return StreamingResponse(
+        event_stream(),
+        media_type="text/event-stream",
+        headers={
+            "Cache-Control": "no-cache",
+            "Connection": "keep-alive",
+            "X-Accel-Buffering": "no",
+        },
     )
-    db.add(attachment)
-    await db.commit()
-    await db.refresh(attachment)
-    return attachment_to_response(attachment)
 
 
-@router.get("/sessions/{session_id}/attachments", dependencies=[Depends(require_permission("ai:read"))])
-async def list_attachments(
-    session_id: str,
+@router.get("/conversations/{conversation_id}/messages", dependencies=[Depends(require_permission("ai:read"))])
+async def list_comm_messages(
+    conversation_id: str,
     current_user: dict = Depends(get_current_user),
     db: AsyncSession = Depends(get_db),
 ):
+    """List messages for an AI comm conversation."""
     tenant_id = uuid.UUID(current_user["tenant_id"])
-    user_id = uuid.UUID(current_user["user_id"])
-    session = await get_session_by_id(db, uuid.UUID(session_id), user_id, tenant_id)
-    if not session:
-        raise HTTPException(status_code=404, detail="Session not found")
-
-    result = await db.execute(
-        select(AIChatAttachment)
-        .where(AIChatAttachment.session_id == session.id)
-        .where(AIChatAttachment.tenant_id == tenant_id)
-        .order_by(AIChatAttachment.created_at.asc())
-    )
-    attachments = list(result.scalars().all())
-    return [attachment_to_response(a) for a in attachments]
+    await set_tenant_context(db, tenant_id)
+    messages = await get_comm_messages(db, uuid.UUID(conversation_id), tenant_id)
+    return [{"role": m["role"], "content": m["content"]} for m in messages]
 
 
-@router.get("/attachments/{attachment_id}/download", dependencies=[Depends(require_permission("ai:read"))])
-async def download_attachment(
-    attachment_id: str,
-    current_user: dict = Depends(get_current_user),
-    db: AsyncSession = Depends(get_db),
-):
-    tenant_id = uuid.UUID(current_user["tenant_id"])
-    result = await db.execute(
-        select(AIChatAttachment)
-        .where(AIChatAttachment.id == uuid.UUID(attachment_id))
-        .where(AIChatAttachment.tenant_id == tenant_id)
-    )
-    attachment = result.scalar_one_or_none()
-    if not attachment:
-        raise HTTPException(status_code=404, detail="Attachment not found")
-
-    return FileResponse(
-        attachment.storage_path,
-        filename=attachment.filename,
-        media_type=attachment.mime_type,
-    )

app/plugins/builtins/ai_assistant/services.py

@@ -13,7 +13,6 @@ import uuid
 from collections.abc import AsyncGenerator
 from typing import Any
 
-import aiofiles
 import litellm
 from sqlalchemy import select
 from sqlalchemy.ext.asyncio import AsyncSession
@@ -22,10 +21,7 @@ from app.ai.llm_client import llm_complete
 from app.core.permissions import check_permission
 from app.plugins.builtins.ai_assistant.models import (
     AIAgent,
-    AIChatAttachment,
     AIChatFolder,
-    AIChatMessage,
-    AIChatSession,
     AIModel,
     AIPreset,
     AIProvider,
@@ -110,35 +106,6 @@ def agent_to_response(agent: AIAgent) -> dict[str, Any]:
     }
 
 
-def session_to_response(session: AIChatSession) -> dict[str, Any]:
-    return {
-        "id": str(session.id),
-        "user_id": str(session.user_id),
-        "agent_id": str(session.agent_id) if session.agent_id else None,
-        "title": session.title,
-        "is_pinned": session.is_pinned,
-        "is_sidebar": session.is_sidebar,
-        "folder_id": str(session.folder_id) if session.folder_id else None,
-        "sort_order": session.sort_order,
-        "created_at": session.created_at.isoformat() if session.created_at else None,
-        "updated_at": session.updated_at.isoformat() if session.updated_at else None,
-    }
-
-
-def message_to_response(msg: AIChatMessage) -> dict[str, Any]:
-    return {
-        "id": str(msg.id),
-        "session_id": str(msg.session_id),
-        "role": msg.role,
-        "content": msg.content,
-        "tool_calls": msg.tool_calls if msg.tool_calls else None,
-        "tool_results": msg.tool_results if msg.tool_results else None,
-        "tokens": msg.tokens,
-        "model_used": msg.model_used,
-        "created_at": msg.created_at.isoformat() if msg.created_at else None,
-    }
-
-
 def folder_to_response(folder: AIChatFolder) -> dict[str, Any]:
     return {
         "id": str(folder.id),
@@ -150,17 +117,6 @@ def folder_to_response(folder: AIChatFolder) -> dict[str, Any]:
     }
 
 
-def attachment_to_response(att: AIChatAttachment) -> dict[str, Any]:
-    return {
-        "id": str(att.id),
-        "message_id": str(att.message_id) if att.message_id else None,
-        "session_id": str(att.session_id),
-        "filename": att.filename,
-        "mime_type": att.mime_type,
-        "size_bytes": att.size_bytes,
-    }
-
-
 # ─── Provider/Model/Preset/Agent CRUD ───
 
 async def get_default_provider(db: AsyncSession, tenant_id: uuid.UUID) -> AIProvider | None:
@@ -214,60 +170,159 @@ async def get_default_agent(db: AsyncSession, tenant_id: uuid.UUID) -> AIAgent |
     return result.scalar_one_or_none()
 
 
-# ─── Session/Message helpers ───
+# ─── Comm-based Chat Helpers (replaces AIChatSession/AIChatMessage) ───
 
-async def get_session_by_id(
-    db: AsyncSession, session_id: uuid.UUID, user_id: uuid.UUID, tenant_id: uuid.UUID
-) -> AIChatSession | None:
+async def get_comm_messages(
+    db: AsyncSession, conversation_id: uuid.UUID, tenant_id: uuid.UUID
+) -> list[dict[str, Any]]:
+    """Get message history from comm_messages for an AI conversation."""
+    from app.plugins.builtins.kommunikation.models import CommMessage
     result = await db.execute(
-        select(AIChatSession)
-        .where(AIChatSession.id == session_id)
-        .where(AIChatSession.user_id == user_id)
-        .where(AIChatSession.tenant_id == tenant_id)
-        .limit(1)
+        select(CommMessage)
+        .where(CommMessage.conversation_id == conversation_id)
+        .where(CommMessage.tenant_id == tenant_id)
+        .order_by(CommMessage.created_at.asc())
     )
-    return result.scalar_one_or_none()
+    msgs = list(result.scalars().all())
+    return [{"role": m.sender_type if m.sender_type != "ai" else "assistant", "content": m.content} for m in msgs]
 
 
-async def get_session_messages(
-    db: AsyncSession, session_id: uuid.UUID, tenant_id: uuid.UUID
-) -> list[AIChatMessage]:
-    result = await db.execute(
-        select(AIChatMessage)
-        .where(AIChatMessage.session_id == session_id)
-        .where(AIChatMessage.tenant_id == tenant_id)
-        .order_by(AIChatMessage.created_at.asc())
-    )
-    return list(result.scalars().all())
-
-
-async def save_message(
+async def save_comm_message(
     db: AsyncSession,
-    session_id: uuid.UUID,
+    conversation_id: uuid.UUID,
     role: str,
     content: str,
     tenant_id: uuid.UUID,
-    tool_calls: list | None = None,
-    tool_results: list | None = None,
-    tokens: int = 0,
-    model_used: str = "",
-) -> AIChatMessage:
-    msg = AIChatMessage(
-        session_id=session_id,
-        role=role,
+    user_id: uuid.UUID,
+) -> None:
+    """Save a message to comm_messages for an AI conversation."""
+    from app.plugins.builtins.kommunikation.models import CommMessage
+    sender_type = "user" if role == "user" else "ai"
+    msg = CommMessage(
+        conversation_id=conversation_id,
+        sender_id=user_id if role == "user" else None,
+        sender_type=sender_type,
         content=content,
-        tool_calls=tool_calls,
-        tool_results=tool_results,
-        tokens=tokens,
-        model_used=model_used,
+        content_format="text",
         tenant_id=tenant_id,
     )
     db.add(msg)
     await db.flush()
-    return msg
 
 
-# ─── LLM Chat with Tool Loop ───
+async def stream_chat_comm(
+    db: AsyncSession,
+    conversation_id: uuid.UUID,
+    agent: AIAgent,
+    user_message: str,
+    user_context: dict[str, Any],
+    tenant_id: uuid.UUID,
+    user_id: uuid.UUID,
+) -> AsyncGenerator[str, None]:
+    """Stream chat response via SSE with tool-calling loop, using comm_messages."""
+    history = await get_comm_messages(db, conversation_id, tenant_id)
+    messages: list[dict[str, Any]] = list(history)
+
+    messages.append({"role": "user", "content": user_message})
+    await save_comm_message(db, conversation_id, "user", user_message, tenant_id, user_id)
+
+    # Get agent tools — always include call_crm_api for full system access
+    registry = get_tool_registry()
+    tools = registry.get_by_names(agent.tool_ids or [])
+    crm_api_tool = registry.get("call_crm_api")
+    if crm_api_tool and crm_api_tool not in tools:
+        tools.append(crm_api_tool)
+    tool_schemas = [t.to_openai_schema() for t in tools] if tools else None
+
+    # Build LLM params
+    params, model_id = await build_litellm_params(db, agent, messages, tenant_id)
+
+    # Agent loop: LLM → tool calls → execute → feed back → repeat
+    max_iterations = 5
+    for iteration in range(max_iterations):
+        if tool_schemas and iteration < max_iterations - 1:
+            params["tools"] = tool_schemas
+        elif "tools" in params:
+            del params["tools"]
+
+        collected_content = ""
+        collected_tool_calls: list[dict[str, Any]] = []
+        try:
+            result = await llm_complete(
+                model=params.get("model", "gpt-4o-mini"),
+                messages=params.get("messages", []),
+                temperature=params.get("temperature", 0.7),
+                max_tokens=params.get("max_tokens", 2048),
+                api_key=params.get("api_key"),
+                api_base=params.get("api_base"),
+                tools=params.get("tools"),
+            )
+            collected_content = result["content"]
+            if collected_content:
+                yield f"data: {json.dumps({'type': 'token', 'content': collected_content})}\n\n"
+            raw_response = result["raw_response"]
+            if hasattr(raw_response.choices[0].message, "tool_calls") and raw_response.choices[0].message.tool_calls:
+                for tc in raw_response.choices[0].message.tool_calls:
+                    collected_tool_calls.append({
+                        "id": tc.id or "",
+                        "function": {
+                            "name": tc.function.name if tc.function else "",
+                            "arguments": tc.function.arguments if tc.function and tc.function.arguments else "",
+                        },
+                    })
+        except Exception as exc:
+            logger.error("LLM error: %s", exc)
+            yield f"data: {json.dumps({'type': 'error', 'content': str(exc)})}\n\n"
+            await save_comm_message(db, conversation_id, "assistant", f"Error: {exc}", tenant_id, user_id)
+            await db.commit()
+            return
+
+        if collected_tool_calls:
+            await save_comm_message(
+                db, conversation_id, "assistant", collected_content, tenant_id, user_id,
+            )
+            yield f"data: {json.dumps({'type': 'tool_calls', 'tools': [tc['function']['name'] for tc in collected_tool_calls]})}\n\n"
+
+            for tc in collected_tool_calls:
+                tool_name = tc["function"]["name"]
+                try:
+                    tool_args = json.loads(tc["function"]["arguments"])
+                except json.JSONDecodeError:
+                    tool_args = {}
+
+                tool = registry.get(tool_name)
+                if tool is None:
+                    result = f"Tool '{tool_name}' not found"
+                else:
+                    result = await execute_tool_call(tool, tool_args, user_context)
+
+                yield f"data: {json.dumps({'type': 'tool_result', 'tool': tool_name, 'result': result[:500]})}\n\n"
+
+                messages.append({
+                    "role": "assistant",
+                    "content": collected_content,
+                    "tool_calls": collected_tool_calls,
+                })
+                messages.append({
+                    "role": "tool",
+                    "tool_call_id": tc["id"],
+                    "name": tool_name,
+                    "content": result,
+                })
+
+            params, model_id = await build_litellm_params(db, agent, messages, tenant_id)
+            continue
+
+        # No tool calls — final response
+        await save_comm_message(db, conversation_id, "assistant", collected_content, tenant_id, user_id)
+        await db.commit()
+        yield f"data: {json.dumps({'type': 'done', 'content': collected_content})}\n\n"
+        return
+
+    # Max iterations reached
+    await save_comm_message(db, conversation_id, "assistant", collected_content, tenant_id, user_id)
+    await db.commit()
+    yield f"data: {json.dumps({'type': 'done', 'content': collected_content})}\n\n"
 
 async def build_litellm_params(
     db: AsyncSession,
@@ -364,190 +419,6 @@ async def execute_tool_call(
         return f"Error executing tool '{tool.name}': {exc}"
 
 
-async def _extract_attachment_content(
-    db: AsyncSession,
-    session_id: uuid.UUID,
-    tenant_id: uuid.UUID,
-) -> str:
-    """Extract text content from session attachments for LLM context."""
-    result = await db.execute(
-        select(AIChatAttachment)
-        .where(AIChatAttachment.session_id == session_id)
-        .where(AIChatAttachment.tenant_id == tenant_id)
-        .order_by(AIChatAttachment.created_at.asc())
-    )
-    attachments = list(result.scalars().all())
-    if not attachments:
-        return ""
-
-    parts: list[str] = []
-    for att in attachments:
-        try:
-            async with aiofiles.open(att.storage_path, "rb") as f:
-                content = await f.read()
-
-            text_content = ""
-            mime = att.mime_type.lower()
-
-            if mime.startswith("text/") or att.filename.endswith((".txt", ".md", ".csv", ".json", ".yaml", ".yml", ".py", ".js", ".ts", ".html", ".xml")):
-                text_content = content.decode("utf-8", errors="replace")
-            elif mime == "application/pdf" or att.filename.endswith(".pdf"):
-                try:
-                    from io import BytesIO
-
-                    from pypdf import PdfReader
-                    reader = PdfReader(BytesIO(content))
-                    text_content = "\n".join(page.extract_text() or "" for page in reader.pages)
-                except ImportError:
-                    text_content = f"[PDF file: {att.filename} - extraction not available]"
-            elif mime.startswith("image/"):
-                text_content = f"[Image file: {att.filename} ({att.mime_type}, {att.size_bytes} bytes)]"
-            else:
-                text_content = f"[Binary file: {att.filename} ({att.mime_type}, {att.size_bytes} bytes)]"
-
-            if len(text_content) > 10000:
-                text_content = text_content[:10000] + "\n... [truncated]"
-
-            parts.append(f"--- Attachment: {att.filename} ---\n{text_content}")
-        except Exception as exc:
-            logger.warning("Failed to extract attachment %s: %s", att.filename, exc)
-            parts.append(f"--- Attachment: {att.filename} (extraction failed) ---")
-
-    return "\n\n".join(parts)
-
-
-async def stream_chat(
-    db: AsyncSession,
-    session: AIChatSession,
-    agent: AIAgent,
-    user_message: str,
-    user_context: dict[str, Any],
-    tenant_id: uuid.UUID,
-) -> AsyncGenerator[str, None]:
-    """Stream chat response via SSE with tool-calling loop."""
-    history = await get_session_messages(db, session.id, tenant_id)
-    messages: list[dict[str, Any]] = []
-    for msg in history:
-        messages.append({"role": msg.role, "content": msg.content})
-
-    attachment_content = await _extract_attachment_content(db, session.id, tenant_id)
-    full_message = user_message
-    if attachment_content:
-        full_message = f"{user_message}\n\n--- Attached Files ---\n{attachment_content}"
-
-    messages.append({"role": "user", "content": full_message})
-    await save_message(db, session.id, "user", user_message, tenant_id)
-
-    # Get agent tools — always include call_crm_api for full system access
-    registry = get_tool_registry()
-    tools = registry.get_by_names(agent.tool_ids or [])
-    # Ensure call_crm_api is always available
-    crm_api_tool = registry.get("call_crm_api")
-    if crm_api_tool and crm_api_tool not in tools:
-        tools.append(crm_api_tool)
-    tool_schemas = [t.to_openai_schema() for t in tools] if tools else None
-
-    # Build LLM params
-    params, model_id = await build_litellm_params(db, agent, messages, tenant_id)
-
-    # Agent loop: LLM → tool calls → execute → feed back → repeat
-    max_iterations = 5
-    for iteration in range(max_iterations):
-        # Add tools to params if available, but NOT on the last iteration
-        # to force the LLM to give a final answer instead of looping
-        if tool_schemas and iteration < max_iterations - 1:
-            params["tools"] = tool_schemas
-        elif "tools" in params:
-            del params["tools"]
-
-        # LLM response via llm_complete (non-streaming)
-        collected_content = ""
-        collected_tool_calls: list[dict[str, Any]] = []
-        try:
-            result = await llm_complete(
-                model=params.get("model", "gpt-4o-mini"),
-                messages=params.get("messages", []),
-                temperature=params.get("temperature", 0.7),
-                max_tokens=params.get("max_tokens", 2048),
-                api_key=params.get("api_key"),
-                api_base=params.get("api_base"),
-                tools=params.get("tools"),
-            )
-            collected_content = result["content"]
-            if collected_content:
-                yield f"data: {json.dumps({'type': 'token', 'content': collected_content})}\n\n"
-            # Extract tool calls from raw response
-            raw_response = result["raw_response"]
-            if hasattr(raw_response.choices[0].message, "tool_calls") and raw_response.choices[0].message.tool_calls:
-                for tc in raw_response.choices[0].message.tool_calls:
-                    collected_tool_calls.append({
-                        "id": tc.id or "",
-                        "function": {
-                            "name": tc.function.name if tc.function else "",
-                            "arguments": tc.function.arguments if tc.function and tc.function.arguments else "",
-                        },
-                    })
-        except Exception as exc:
-            logger.error("LLM error: %s", exc)
-            yield f"data: {json.dumps({'type': 'error', 'content': str(exc)})}\n\n"
-            await save_message(db, session.id, "assistant", f"Error: {exc}", tenant_id, model_used=model_id)
-            await db.commit()
-            return
-
-        # If tool calls, execute them and continue loop
-        if collected_tool_calls:
-            # Save assistant message with tool calls
-            await save_message(
-                db, session.id, "assistant", collected_content, tenant_id,
-                tool_calls=collected_tool_calls, model_used=model_id,
-            )
-            yield f"data: {json.dumps({'type': 'tool_calls', 'tools': [tc['function']['name'] for tc in collected_tool_calls]})}\n\n"
-
-            # Execute each tool call
-            for tc in collected_tool_calls:
-                tool_name = tc["function"]["name"]
-                try:
-                    tool_args = json.loads(tc["function"]["arguments"])
-                except json.JSONDecodeError:
-                    tool_args = {}
-
-                tool = registry.get(tool_name)
-                if tool is None:
-                    result = f"Tool '{tool_name}' not found"
-                else:
-                    result = await execute_tool_call(tool, tool_args, user_context)
-
-                yield f"data: {json.dumps({'type': 'tool_result', 'tool': tool_name, 'result': result[:500]})}\n\n"
-
-                # Add tool result to messages for next iteration
-                messages.append({
-                    "role": "assistant",
-                    "content": collected_content,
-                    "tool_calls": collected_tool_calls,
-                })
-                messages.append({
-                    "role": "tool",
-                    "tool_call_id": tc["id"],
-                    "name": tool_name,
-                    "content": result,
-                })
-
-            # Update params with new messages for next iteration
-            params, model_id = await build_litellm_params(db, agent, messages, tenant_id)
-            continue
-
-        # No tool calls — final response
-        await save_message(db, session.id, "assistant", collected_content, tenant_id, model_used=model_id)
-        await db.commit()
-        yield f"data: {json.dumps({'type': 'done', 'content': collected_content})}\n\n"
-        return
-
-    # Max iterations reached
-    await save_message(db, session.id, "assistant", collected_content, tenant_id, model_used=model_id)
-    await db.commit()
-    yield f"data: {json.dumps({'type': 'done', 'content': collected_content})}\n\n"
-
-
 # ─── Seed Defaults ───
 
 async def seed_defaults(db: AsyncSession) -> None:

app/plugins/builtins/unified_search/providers/ai_chat_provider.py

@@ -1,4 +1,4 @@
-"""AI chat search provider — FTS search on ai_chat_messages table."""
+"""AI chat search provider — FTS search on comm_messages for AI conversations."""
 
 from __future__ import annotations
 
@@ -15,7 +15,7 @@ logger = logging.getLogger(__name__)
 
 
 class AIChatSearchProvider(BaseSearchProvider):
-    """Search provider for AI chat messages."""
+    """Search provider for AI chat messages in comm_messages."""
 
     entity_type = "ai_chat"
     supports_fts = True
@@ -29,18 +29,18 @@ class AIChatSearchProvider(BaseSearchProvider):
         limit: int,
         visible_ids: set[uuid.UUID] | None,
     ) -> list[dict[str, Any]]:
-        """Full-text search on ai_chat_messages.content, joined with sessions for title."""
+        """Full-text search on comm_messages.content for AI conversations."""
         if visible_ids is not None:
             sql = text(
                 """
-                SELECT m.id, m.tenant_id, m.session_id, m.role, m.content,
-                       m.model_used, m.tokens,
-                       s.title AS session_title,
+                SELECT m.id, m.tenant_id, m.conversation_id, m.sender_type AS role, m.content,
+                       c.title AS session_title,
                        ts_rank(to_tsvector('pg_catalog.german', m.content),
                                to_tsquery('pg_catalog.german', :q)) AS rank
-                FROM ai_chat_messages m
-                JOIN ai_chat_sessions s ON s.id = m.session_id
+                FROM comm_messages m
+                JOIN comm_conversations c ON c.id = m.conversation_id
                 WHERE m.tenant_id = :tid
+                  AND c.metadata->>'conversation_type' = 'ai'
                   AND to_tsvector('pg_catalog.german', m.content) @@ to_tsquery('pg_catalog.german', :q)
                   AND m.id = ANY(:visible_ids)
                 ORDER BY rank DESC
@@ -59,14 +59,14 @@ class AIChatSearchProvider(BaseSearchProvider):
         else:
             sql = text(
                 """
-                SELECT m.id, m.tenant_id, m.session_id, m.role, m.content,
-                       m.model_used, m.tokens,
-                       s.title AS session_title,
+                SELECT m.id, m.tenant_id, m.conversation_id, m.sender_type AS role, m.content,
+                       c.title AS session_title,
                        ts_rank(to_tsvector('pg_catalog.german', m.content),
                                to_tsquery('pg_catalog.german', :q)) AS rank
-                FROM ai_chat_messages m
-                JOIN ai_chat_sessions s ON s.id = m.session_id
+                FROM comm_messages m
+                JOIN comm_conversations c ON c.id = m.conversation_id
                 WHERE m.tenant_id = :tid
+                  AND c.metadata->>'conversation_type' = 'ai'
                   AND to_tsvector('pg_catalog.german', m.content) @@ to_tsquery('pg_catalog.german', :q)
                 ORDER BY rank DESC
                 LIMIT :lim
@@ -97,7 +97,7 @@ class AIChatSearchProvider(BaseSearchProvider):
         sql = text(
             """
             SELECT content
-            FROM ai_chat_messages
+            FROM comm_messages
             WHERE id = :eid AND tenant_id = :tid
             """
         )
@@ -114,14 +114,14 @@ class AIChatSearchProvider(BaseSearchProvider):
             content = entity.get("content", "")
             role = entity.get("role", "")
             session_title = entity.get("session_title", "")
-            session_id = str(entity.get("session_id", ""))
+            conversation_id = str(entity.get("conversation_id", ""))
             score = entity.get("rank", 0.0)
         else:
             entity_id = str(getattr(entity, "id", ""))
             content = getattr(entity, "content", "")
             role = getattr(entity, "role", "")
             session_title = getattr(entity, "session_title", "")
-            session_id = str(getattr(entity, "session_id", ""))
+            conversation_id = str(getattr(entity, "conversation_id", ""))
             score = getattr(entity, "rank", 0.0)
         return {
             "entity_type": self.entity_type,
@@ -131,7 +131,7 @@ class AIChatSearchProvider(BaseSearchProvider):
             "score": float(score) if score else 0.0,
             "data": {
                 "role": role,
-                "session_id": session_id,
+                "conversation_id": conversation_id,
                 "session_title": session_title,
             },
         }

app/routes/__init__.py

@@ -2,7 +2,6 @@
 
 from app.routes import (
     addresses,  # noqa: F401
-    ai_copilot,  # noqa: F401
     attachments,  # noqa: F401
     audit,  # noqa: F401
     compliance,  # noqa: F401

app/routes/entity_permissions.py

@@ -250,7 +250,6 @@ async def list_entity_registry(
         {"entity_type": "webhook", "label": "Webhooks", "table": "webhooks"},
         {"entity_type": "notification", "label": "Benachrichtigungen", "table": "notifications"},
         {"entity_type": "custom_field_definition", "label": "Custom Fields", "table": "custom_field_definitions"},
-        {"entity_type": "ai_conversation", "label": "AI Konversationen", "table": "ai_conversations"},
     ]
     return {"items": entity_types, "total": len(entity_types)}
 

app/services/ai_copilot_service.py

@@ -12,7 +12,11 @@ from app.ai.llm_client import get_llm_client
 from app.core.audit import log_audit
 from app.core.permissions import check_permission
 from app.core.visibility import apply_visibility_filter, check_single_entity_access
-from app.models.ai_conversation import AIConversation, AIMessage
+try:
+    from app.models.ai_conversation import AIConversation, AIMessage
+except ImportError:
+    AIConversation = None  # type: ignore
+    AIMessage = None  # type: ignore
 from app.models.contact import Contact
 from app.models.workflow import Workflow
 

app/services/owner_transfer_service.py

@@ -24,7 +24,6 @@ ENTITY_TABLES: dict[str, str] = {
     "saved_views": "saved_views",
     "webhooks": "webhooks",
     "notifications": "notifications",
-    "ai_conversations": "ai_conversations",
 }
 
 

frontend/src/api/ai.ts

@@ -166,8 +166,8 @@ export const deleteSession = (id: string) => apiDelete(`/ai/sessions/${id}`);
 
 // ─── Messages ───
 
-export const fetchMessages = (sessionId: string) =>
-  apiGet<ChatMessage[]>(`/ai/sessions/${sessionId}/messages`);
+export const fetchMessages = (conversationId: string) =>
+  apiGet<{ role: string; content: string }[]>(`/ai/conversations/${conversationId}/messages`);
 
 // ─── Attachments ───
 
@@ -205,12 +205,12 @@ export interface StreamEvent {
 }
 
 export async function* streamChat(
-  sessionId: string,
+  conversationId: string,
   content: string,
   agentId?: string
 ): AsyncGenerator<StreamEvent> {
   const csrfToken = sessionStorage.getItem('leocrm_csrf_token');
-  const response = await fetch(`/api/v1/ai/sessions/${sessionId}/stream`, {
+  const response = await fetch(`/api/v1/ai/conversations/${conversationId}/stream`, {
     method: 'POST',
     headers: {
       'Content-Type': 'application/json',

frontend/src/components/ai/ChatWindow.tsx

@@ -1,196 +0,0 @@
-import React, { useState, useRef, useEffect } from 'react';
-import clsx from 'clsx';
-import ReactMarkdown from 'react-markdown';
-import remarkGfm from 'remark-gfm';
-import {
-  streamChat, fetchMessages, fetchAttachments, uploadAttachment, getAttachmentDownloadUrl,
-  type ChatMessage, type ChatAttachment,
-} from '@/api/ai';
-
-interface ChatWindowProps {
-  sessionId: string;
-  agentId?: string | null;
-  className?: string;
-  compact?: boolean;
-}
-
-function formatSize(bytes: number): string {
-  if (bytes < 1024) return `${bytes} B`;
-  if (bytes < 1024 * 1024) return `${(bytes / 1024).toFixed(1)} KB`;
-  return `${(bytes / (1024 * 1024)).toFixed(1)} MB`;
-}
-
-function MessageContent({ content, role }: { content: string; role: string }) {
-  if (role === 'user') {
-    return <div className="whitespace-pre-wrap break-words">{content}</div>;
-  }
-  return (
-    <div className="ai-markdown max-w-none break-words">
-      <ReactMarkdown remarkPlugins={[remarkGfm]}>{content}</ReactMarkdown>
-    </div>
-  );
-}
-
-function ActivityIndicator({ status }: { status: string | null }) {
-  if (!status) return null;
-  return (
-    <div className="flex items-center gap-2 px-4 py-2 text-xs text-secondary-500">
-      <div className="flex gap-1">
-        <span className="w-1.5 h-1.5 rounded-full bg-primary-400 animate-bounce [animation-delay:0ms]" />
-        <span className="w-1.5 h-1.5 rounded-full bg-primary-400 animate-bounce [animation-delay:150ms]" />
-        <span className="w-1.5 h-1.5 rounded-full bg-primary-400 animate-bounce [animation-delay:300ms]" />
-      </div>
-      <span>{status}</span>
-    </div>
-  );
-}
-
-export function ChatWindow({ sessionId, agentId, className, compact }: ChatWindowProps) {
-  const [messages, setMessages] = useState<ChatMessage[]>([]);
-  const [attachments, setAttachments] = useState<ChatAttachment[]>([]);
-  const [input, setInput] = useState('');
-  const [isStreaming, setIsStreaming] = useState(false);
-  const [streamingContent, setStreamingContent] = useState('');
-  const [activity, setActivity] = useState<string | null>(null);
-  const [error, setError] = useState<string | null>(null);
-  const [uploadingFile, setUploadingFile] = useState(false);
-  const scrollRef = useRef<HTMLDivElement>(null);
-  const inputRef = useRef<HTMLTextAreaElement>(null);
-  const fileInputRef = useRef<HTMLInputElement>(null);
-
-  useEffect(() => {
-    if (!sessionId) return;
-    setMessages([]);
-    setAttachments([]);
-    setError(null);
-    fetchMessages(sessionId).then(setMessages).catch((e) => setError(e?.message || 'Failed to load'));
-    fetchAttachments(sessionId).then(setAttachments).catch(() => {});
-  }, [sessionId]);
-
-  useEffect(() => {
-    if (scrollRef.current) scrollRef.current.scrollTop = scrollRef.current.scrollHeight;
-  }, [messages, streamingContent, activity]);
-
-  const handleFileSelect = async (e: React.ChangeEvent<HTMLInputElement>) => {
-    const files = Array.from(e.target.files || []);
-    if (files.length === 0) return;
-    setUploadingFile(true);
-    try {
-      for (const file of files) {
-        const att = await uploadAttachment(sessionId, file);
-        setAttachments((prev) => [...prev, att]);
-      }
-    } catch (e) {
-      setError(e instanceof Error ? e.message : 'Upload failed');
-    } finally {
-      setUploadingFile(false);
-      if (fileInputRef.current) fileInputRef.current.value = '';
-    }
-  };
-
-  const handleSend = async () => {
-    const content = input.trim();
-    if (!content || isStreaming) return;
-    setInput('');
-    setIsStreaming(true);
-    setStreamingContent('');
-    setActivity('Denke nach...');
-    setError(null);
-
-    const userMsg: ChatMessage = { id: 'temp-' + Date.now(), session_id: sessionId, role: 'user', content, tokens: 0, model_used: '' };
-    setMessages((prev) => [...prev, userMsg]);
-
-    try {
-      const stream = streamChat(sessionId, content, agentId || undefined);
-      let accumulated = '';
-      for await (const event of stream) {
-        if (event.type === 'token' && event.content) {
-          accumulated += event.content;
-          setStreamingContent(accumulated);
-          setActivity(null);
-        } else if (event.type === 'tool_calls' && event.tools) {
-          setActivity(`Rufe Tool auf: ${event.tools.join(', ')}`);
-        } else if (event.type === 'tool_result' && event.tool) {
-          setActivity(`Tool '${event.tool}' ausgeführt`);
-        } else if (event.type === 'done') {
-          setActivity(null);
-          const msgs = await fetchMessages(sessionId);
-          setMessages(msgs);
-          setStreamingContent('');
-        } else if (event.type === 'error') {
-          setError(event.content || 'Unknown error');
-          setActivity(null);
-        }
-      }
-    } catch (e) {
-      setError(e instanceof Error ? e.message : 'Stream failed');
-    } finally {
-      setIsStreaming(false);
-      setStreamingContent('');
-      setActivity(null);
-      inputRef.current?.focus();
-    }
-  };
-
-  const handleKeyDown = (e: React.KeyboardEvent) => {
-    if (e.key === 'Enter' && !e.shiftKey) { e.preventDefault(); handleSend(); }
-  };
-
-  return (
-    <div className={clsx('flex flex-col h-full bg-white', className)}>
-      {attachments.length > 0 && (
-        <div className={clsx('border-b border-secondary-200 bg-secondary-50', compact ? 'px-2 py-1' : 'px-4 py-2')}>
-          <div className="flex flex-wrap gap-2">
-            {attachments.map((att) => (
-              <a key={att.id} href={getAttachmentDownloadUrl(att.id)} target="_blank" rel="noopener noreferrer" className="flex items-center gap-1.5 rounded-md bg-white border border-secondary-200 px-2 py-1 text-xs hover:border-primary-400">
-                <svg className="w-3.5 h-3.5 text-secondary-400" fill="none" viewBox="0 0 24 24" stroke="currentColor"><path strokeLinecap="round" strokeLinejoin="round" strokeWidth={2} d="M15.172 7l-6.586 6.586a2 2 0 102.828 2.828l6.414-6.586a4 4 0 00-5.656-5.656l-6.415 6.585a6 6 0 108.486 8.486L20.5 13" /></svg>
-                <span className="max-w-32 truncate">{att.filename}</span>
-                <span className="text-secondary-400">{formatSize(att.size_bytes)}</span>
-              </a>
-            ))}
-          </div>
-        </div>
-      )}
-      <div ref={scrollRef} className={clsx('flex-1 overflow-y-auto', compact ? 'p-3' : 'p-6')}>
-        {messages.length === 0 && !streamingContent && !error && (
-          <div className="flex items-center justify-center h-full text-secondary-400 text-sm">Starte eine Konversation...</div>
-        )}
-        {messages.map((msg) => (
-          <div key={msg.id} className="mb-6">
-            <div className={clsx('text-xs font-medium mb-1', msg.role === 'user' ? 'text-primary-600' : 'text-secondary-400')}>
-              {msg.role === 'user' ? 'Du' : 'KI'}
-            </div>
-            <div className={clsx('rounded-lg px-4 py-2 text-sm', msg.role === 'user' ? 'bg-primary-50 border border-primary-100' : '')}>
-              <MessageContent content={msg.content} role={msg.role} />
-              {msg.tool_calls && msg.tool_calls.length > 0 && (
-                <div className="mt-2 text-xs text-secondary-400 border-l-2 border-secondary-200 pl-2">
-                  ⚙️ Tools: {msg.tool_calls.map((tc: any) => tc.function?.name).join(', ')}
-                </div>
-              )}
-            </div>
-          </div>
-        ))}
-        {streamingContent && (
-          <div className="mb-6">
-            <div className="text-xs font-medium mb-1 text-secondary-400">KI</div>
-            <div className="text-sm text-secondary-900">
-              <MessageContent content={streamingContent} role="assistant" />
-            </div>
-          </div>
-        )}
-        <ActivityIndicator status={activity} />
-        {error && <div className="mb-4 text-sm text-red-600">{typeof error === "string" ? error : (error as any)?.message || "Ein Fehler ist aufgetreten"}</div>}
-      </div>
-      <div className={clsx('border-t border-secondary-200', compact ? 'p-2' : 'p-4')}>
-        <div className="flex items-end gap-2">
-          <input ref={fileInputRef} type="file" multiple onChange={handleFileSelect} className="hidden" />
-          <button onClick={() => fileInputRef.current?.click()} disabled={uploadingFile || isStreaming} className="rounded-lg border border-secondary-300 p-2 text-secondary-500 hover:bg-secondary-100 disabled:opacity-50" title="Datei anhängen">
-            <svg className="w-5 h-5" fill="none" viewBox="0 0 24 24" stroke="currentColor"><path strokeLinecap="round" strokeLinejoin="round" strokeWidth={2} d="M15.172 7l-6.586 6.586a2 2 0 102.828 2.828l6.414-6.586a4 4 0 00-5.656-5.656l-6.415 6.585a6 6 0 108.486 8.486L20.5 13" /></svg>
-          </button>
-          <textarea ref={inputRef} value={input} onChange={(e) => setInput(e.target.value)} onKeyDown={handleKeyDown} disabled={isStreaming} placeholder="Nachricht eingeben..." rows={compact ? 1 : 2} className={clsx('flex-1 resize-none rounded-lg border border-secondary-300 px-3 py-2 text-sm', 'focus:outline-none focus:ring-2 focus:ring-primary-500', 'disabled:opacity-50')} />
-          <button onClick={handleSend} disabled={isStreaming || !input.trim()} className={clsx('rounded-lg px-4 py-2 text-sm font-medium text-white', 'bg-primary-600 hover:bg-primary-700', 'disabled:opacity-50 disabled:cursor-not-allowed')}>{isStreaming ? '...' : 'Senden'}</button>
-        </div>
-      </div>
-    </div>
-  );
-}

frontend/src/components/ai/SessionList.tsx

@@ -1,385 +0,0 @@
-import React, { useEffect, useState, useRef, useCallback } from 'react';
-import clsx from 'clsx';
-import { useQueryClient } from '@tanstack/react-query';
-import {
-  fetchSessions, createSession, deleteSession, updateSession,
-  fetchFolders, createFolder, deleteFolder, updateFolder,
-  type ChatSession, type ChatFolder,
-} from '@/api/ai';
-
-interface SessionListProps {
-  activeSessionId: string | null;
-  onSelectSession: (id: string) => void;
-  isSidebar?: boolean;
-  className?: string;
-}
-
-interface TreeNode {
-  folder: ChatFolder | null;
-  sessions: ChatSession[];
-  children: TreeNode[];
-}
-
-interface ContextMenuState {
-  x: number;
-  y: number;
-  type: 'session' | 'folder' | 'root';
-  id: string | null;
-}
-
-function buildTree(folders: ChatFolder[], sessions: ChatSession[]): TreeNode[] {
-  const rootSessions = sessions.filter((s) => !s.folder_id);
-  const root: TreeNode = { folder: null, sessions: rootSessions, children: [] };
-  const folderMap = new Map<string, TreeNode>();
-  for (const f of folders) folderMap.set(f.id, { folder: f, sessions: [], children: [] });
-  for (const f of folders) {
-    const node = folderMap.get(f.id)!;
-    if (f.parent_id && folderMap.has(f.parent_id)) folderMap.get(f.parent_id)!.children.push(node);
-    else root.children.push(node);
-  }
-  for (const s of sessions) {
-    if (s.folder_id && folderMap.has(s.folder_id)) folderMap.get(s.folder_id)!.sessions.push(s);
-  }
-  return [root];
-}
-
-function TreeItem({
-  node, activeSessionId, onSelectSession, depth, onContextMenu, onDragSession, onDragFolder, onDropToFolder, onDelete, onRename,
-}: {
-  node: TreeNode;
-  activeSessionId: string | null;
-  onSelectSession: (id: string) => void;
-  depth: number;
-  onContextMenu: (e: React.MouseEvent, type: 'session' | 'folder' | 'root', id: string | null) => void;
-  onDragSession: (sessionId: string) => void;
-  onDragFolder: (folderId: string) => void;
-  onDropToFolder: (folderId: string | null) => void;
-  onDelete: (id: string, type: 'session' | 'folder') => void;
-  onRename: (id: string, type: 'session' | 'folder') => void;
-}) {
-  const [expanded, setExpanded] = useState(true);
-  const [isDragOver, setIsDragOver] = useState(false);
-  const isRoot = node.folder === null;
-  const folderId = node.folder?.id || null;
-
-  const handleDrop = (e: React.DragEvent) => {
-    e.preventDefault();
-    e.stopPropagation();
-    setIsDragOver(false);
-    const data = e.dataTransfer.getData('text/plain');
-    if (data.startsWith('folder:')) {
-      const draggedFolderId = data.slice(7);
-      if (draggedFolderId !== folderId) {
-        onDropToFolder(folderId);
-      }
-    } else {
-      onDropToFolder(folderId);
-    }
-  };
-
-  const handleDragOver = (e: React.DragEvent) => {
-    e.preventDefault();
-    e.stopPropagation();
-    if (!isRoot) setIsDragOver(true);
-  };
-
-  return (
-    <div>
-      {/* Folder header - drop target */}
-      {!isRoot && (
-        <div
-          onDragOver={handleDragOver}
-          onDragLeave={() => setIsDragOver(false)}
-          onDrop={handleDrop}
-          onContextMenu={(e) => onContextMenu(e, 'folder', node.folder!.id)}
-          className={clsx(
-            'group flex items-center gap-1 px-2 py-1.5 text-sm font-medium rounded-md cursor-pointer',
-            isDragOver ? 'bg-primary-100 ring-2 ring-primary-400' : 'text-secondary-700 hover:bg-secondary-100'
-          )}
-          style={{ paddingLeft: depth * 12 + 8 }}
-          onClick={() => setExpanded(!expanded)}
-        >
-          <svg className={clsx('w-4 h-4 transition-transform', expanded && 'rotate-90')} fill="none" viewBox="0 0 24 24" stroke="currentColor">
-            <path strokeLinecap="round" strokeLinejoin="round" strokeWidth={2} d="M9 5l7 7-7 7" />
-          </svg>
-          <span
-            draggable
-            onDragStart={(e) => {
-              e.dataTransfer.setData('text/plain', `folder:${node.folder!.id}`);
-              e.dataTransfer.effectAllowed = 'move';
-              onDragFolder(node.folder!.id);
-            }}
-            className="cursor-grab active:cursor-grabbing flex items-center"
-            title="Ordner verschieben"
-          >
-            <svg className="w-4 h-4 text-secondary-400" fill="none" viewBox="0 0 24 24" stroke="currentColor">
-              <path strokeLinecap="round" strokeLinejoin="round" strokeWidth={2} d="M3 7v10a2 2 0 002 2h14a2 2 0 002-2V9a2 2 0 00-2-2h-6l-2-2H5a2 2 0 00-2 2z" />
-            </svg>
-          </span>
-          <span className="flex-1 truncate">{node.folder!.name}</span>
-              <button onClick={(e) => { e.stopPropagation(); onRename(node.folder!.id, 'folder'); }} className="opacity-0 group-hover:opacity-100 text-secondary-400 hover:text-primary-600 p-0.5" title="Umbenennen">
-                <svg className="w-3.5 h-3.5" fill="none" viewBox="0 0 24 24" stroke="currentColor"><path strokeLinecap="round" strokeLinejoin="round" strokeWidth={2} d="M11 5H6a2 2 0 00-2 2v11a2 2 0 002 2h11a2 2 0 002-2v-5m-1.414-9.414a2 2 0 112.828 2.828L11.828 15H9v-2.828l8.586-8.586z" /></svg>
-              </button>
-              <button onClick={(e) => { e.stopPropagation(); onDelete(node.folder!.id, 'folder'); }} className="opacity-0 group-hover:opacity-100 text-secondary-400 hover:text-red-600 p-0.5" title="Löschen">
-                <svg className="w-3.5 h-3.5" fill="none" viewBox="0 0 24 24" stroke="currentColor"><path strokeLinecap="round" strokeLinejoin="round" strokeWidth={2} d="M19 7l-.867 12.142A2 2 0 0116.138 21H7.862a2 2 0 01-1.995-1.858L5 7m5 4v6m4-6v6m1-10V4a1 1 0 00-1-1h-4a1 1 0 00-1 1v3M4 7h16" /></svg>
-              </button>
-        </div>
-      )}
-
-      {/* Sessions */}
-      {(isRoot || expanded) && (
-        <div>
-          {node.sessions.map((session) => (
-            <div
-              key={session.id}
-              draggable
-              onDragStart={(e) => {
-                e.dataTransfer.setData('text/plain', session.id);
-                e.dataTransfer.effectAllowed = 'move';
-                onDragSession(session.id);
-              }}
-              onContextMenu={(e) => onContextMenu(e, 'session', session.id)}
-              onClick={() => onSelectSession(session.id)}
-              className={clsx(
-                'group flex items-center gap-2 px-3 py-1.5 text-sm cursor-pointer rounded-md',
-                'hover:bg-secondary-100',
-                activeSessionId === session.id && 'bg-primary-50'
-              )}
-              style={{ paddingLeft: depth * 12 + 24 }}
-            >
-              <svg className="w-3.5 h-3.5 text-secondary-400 flex-shrink-0" fill="none" viewBox="0 0 24 24" stroke="currentColor">
-                <path strokeLinecap="round" strokeLinejoin="round" strokeWidth={2} d="M8 12h8M8 8h8m-8 4h8m-8 4h8" />
-              </svg>
-              <span className={clsx('flex-1 truncate', activeSessionId === session.id && 'font-bold text-primary-700')}>
-                {session.title}
-              </span>
-              <button onClick={(e) => { e.stopPropagation(); onRename(session.id, 'session'); }} className="opacity-0 group-hover:opacity-100 text-secondary-400 hover:text-primary-600 p-0.5" title="Umbenennen">
-                <svg className="w-3.5 h-3.5" fill="none" viewBox="0 0 24 24" stroke="currentColor"><path strokeLinecap="round" strokeLinejoin="round" strokeWidth={2} d="M11 5H6a2 2 0 00-2 2v11a2 2 0 002 2h11a2 2 0 002-2v-5m-1.414-9.414a2 2 0 112.828 2.828L11.828 15H9v-2.828l8.586-8.586z" /></svg>
-              </button>
-              <button onClick={(e) => { e.stopPropagation(); onDelete(session.id, 'session'); }} className="opacity-0 group-hover:opacity-100 text-secondary-400 hover:text-red-600 p-0.5" title="Löschen">
-                <svg className="w-3.5 h-3.5" fill="none" viewBox="0 0 24 24" stroke="currentColor"><path strokeLinecap="round" strokeLinejoin="round" strokeWidth={2} d="M19 7l-.867 12.142A2 2 0 0116.138 21H7.862a2 2 0 01-1.995-1.858L5 7m5 4v6m4-6v6m1-10V4a1 1 0 00-1-1h-4a1 1 0 00-1 1v3M4 7h16" /></svg>
-              </button>
-            </div>
-          ))}
-        </div>
-      )}
-
-      {/* Root drop zone */}
-      {isRoot && (
-        <div
-          onDragOver={handleDragOver}
-          onDragLeave={() => setIsDragOver(false)}
-          onDrop={handleDrop}
-          onContextMenu={(e) => onContextMenu(e, 'root', null)}
-          className={clsx(
-            'min-h-[12px] mt-1 rounded-md transition-colors',
-            isDragOver ? 'bg-primary-50 ring-1 ring-primary-300' : 'hover:bg-secondary-50'
-          )}
-        />
-      )}
-
-      {/* Child folders */}
-      {(isRoot || expanded) && node.children.map((child) => (
-        <TreeItem
-          key={child.folder!.id}
-          node={child}
-          activeSessionId={activeSessionId}
-          onSelectSession={onSelectSession}
-          depth={depth + 1}
-          onContextMenu={onContextMenu}
-          onDragSession={onDragSession}
-          onDragFolder={onDragFolder}
-          onDropToFolder={onDropToFolder}
-          onDelete={onDelete}
-          onRename={onRename}
-        />
-      ))}
-    </div>
-  );
-}
-
-function ContextMenu({
-  state, onClose, onRename, onDelete, onNewFolder, onNewChat,
-}: {
-  state: ContextMenuState;
-  onClose: () => void;
-  onRename: (id: string, type: 'session' | 'folder') => void;
-  onDelete: (id: string, type: 'session' | 'folder') => void;
-  onNewFolder: () => void;
-  onNewChat: () => void;
-}) {
-  const ref = useRef<HTMLDivElement>(null);
-
-  useEffect(() => {
-    const handler = (e: MouseEvent) => {
-      if (ref.current && !ref.current.contains(e.target as Node)) onClose();
-    };
-    document.addEventListener('mousedown', handler);
-    return () => document.removeEventListener('mousedown', handler);
-  }, [onClose]);
-
-  const items: { label: string; action: () => void; danger?: boolean }[] = [];
-
-  if (state.type === 'session') {
-    items.push({ label: 'Umbenennen', action: () => { onRename(state.id!, 'session'); onClose(); } });
-    items.push({ label: 'Löschen', action: () => { onDelete(state.id!, 'session'); onClose(); }, danger: true });
-  } else if (state.type === 'folder') {
-    items.push({ label: 'Umbenennen', action: () => { onRename(state.id!, 'folder'); onClose(); } });
-    items.push({ label: 'Neuer Unterordner', action: () => { onClose(); /* TODO */ } });
-    items.push({ label: 'Löschen', action: () => { onDelete(state.id!, 'folder'); onClose(); }, danger: true });
-  } else {
-    items.push({ label: 'Neuer Chat', action: () => { onNewChat(); onClose(); } });
-    items.push({ label: 'Neuer Ordner', action: () => { onNewFolder(); onClose(); } });
-  }
-
-  return (
-    <div
-      ref={ref}
-      className="fixed z-50 bg-white border border-secondary-200 rounded-lg shadow-lg py-1 min-w-[160px]"
-      style={{ left: state.x, top: state.y }}
-    >
-      {items.map((item, i) => (
-        <button
-          key={i}
-          onClick={item.action}
-          className={clsx(
-            'w-full text-left px-3 py-1.5 text-sm hover:bg-secondary-100',
-            item.danger && 'text-red-600 hover:bg-red-50'
-          )}
-        >
-          {item.label}
-        </button>
-      ))}
-    </div>
-  );
-}
-
-export function SessionList({ activeSessionId, onSelectSession, isSidebar, className }: SessionListProps) {
-  const [sessions, setSessions] = useState<ChatSession[]>([]);
-  const [folders, setFolders] = useState<ChatFolder[]>([]);
-  const [loading, setLoading] = useState(true);
-  const [error, setError] = useState<string | null>(null);
-  const [dragSessionId, setDragSessionId] = useState<string | null>(null);
-  const [dragFolderId, setDragFolderId] = useState<string | null>(null);
-  const [contextMenu, setContextMenu] = useState<ContextMenuState | null>(null);
-  const queryClient = useQueryClient();
-
-  const loadData = async () => {
-    try {
-      setLoading(true);
-      const [s, f] = await Promise.all([fetchSessions(isSidebar ? true : undefined), fetchFolders()]);
-      setSessions(s); setFolders(f); setError(null);
-    } catch (e) { setError(e instanceof Error ? e.message : 'Failed to load'); }
-    finally { setLoading(false); }
-  };
-
-  useEffect(() => { loadData(); }, [isSidebar]);
-
-  const handleContextMenu = useCallback((e: React.MouseEvent, type: 'session' | 'folder' | 'root', id: string | null) => {
-    e.preventDefault();
-    e.stopPropagation();
-    setContextMenu({ x: e.clientX, y: e.clientY, type, id });
-  }, []);
-
-  const handleRename = async (id: string, type: 'session' | 'folder') => {
-    const newName = prompt('Neuer Name:', type === 'session'
-      ? sessions.find(s => s.id === id)?.title || ''
-      : folders.find(f => f.id === id)?.name || ''
-    );
-    if (!newName) return;
-    try {
-      if (type === 'session') await updateSession(id, { title: newName });
-      else {
-        await updateFolder(id, { name: newName });
-        queryClient.invalidateQueries({ queryKey: ['ai', 'folders'] });
-      }
-      loadData();
-    } catch (e) { setError(e instanceof Error ? e.message : 'Rename failed'); }
-  };
-
-  const handleDelete = async (id: string, type: 'session' | 'folder') => {
-    if (!confirm(type === 'session' ? 'Chat löschen?' : 'Ordner löschen? Chats bleiben erhalten.')) return;
-    try {
-      if (type === 'session') {
-        await deleteSession(id);
-        if (activeSessionId === id) onSelectSession('');
-      } else {
-        await deleteFolder(id);
-      }
-      loadData();
-    } catch (e) { setError(e instanceof Error ? e.message : 'Delete failed'); }
-  };
-
-  const handleNewFolder = () => {
-    const name = prompt('Ordnername:');
-    if (!name) return;
-    createFolder({ name }).then(() => loadData()).catch((e) => setError(e?.message));
-  };
-
-  const handleNewChat = async () => {
-    try {
-      const session = await createSession({ is_sidebar: isSidebar || false });
-      onSelectSession(session.id);
-      loadData();
-    } catch (e) { setError(e instanceof Error ? e.message : 'Failed'); }
-  };
-
-  const handleDropToFolder = async (folderId: string | null) => {
-    if (dragFolderId) {
-      try {
-        await updateFolder(dragFolderId, { parent_id: folderId });
-        setDragFolderId(null);
-        loadData();
-      } catch (e) { setError(e instanceof Error ? e.message : 'Failed to move folder'); }
-      return;
-    }
-    if (!dragSessionId) return;
-    try {
-      await updateSession(dragSessionId, { folder_id: folderId });
-      setDragSessionId(null);
-      loadData();
-    } catch (e) { setError(e instanceof Error ? e.message : 'Failed to move'); }
-  };
-
-  if (loading) return <div className="p-4 text-sm text-secondary-400">Laden...</div>;
-
-  const tree = buildTree(folders, sessions);
-
-  return (
-    <div className={clsx('flex flex-col h-full', className)}>
-      {error && <div className="p-2 text-xs text-red-600">{typeof error === "string" ? error : (error as any)?.message || "Ein Fehler ist aufgetreten"}</div>}
-      <div
-        className="flex-1 overflow-y-auto p-2"
-        onContextMenu={(e) => {
-          if (e.target === e.currentTarget) handleContextMenu(e, 'root', null);
-        }}
-      >
-        {tree.map((node) => (
-          <TreeItem
-            key={node.folder?.id || 'root'}
-            node={node}
-            activeSessionId={activeSessionId}
-            onSelectSession={onSelectSession}
-            depth={0}
-            onContextMenu={handleContextMenu}
-            onDragSession={setDragSessionId}
-            onDragFolder={setDragFolderId}
-            onDropToFolder={handleDropToFolder}
-            onDelete={handleDelete}
-            onRename={handleRename}
-          />
-        ))}
-      </div>
-      {contextMenu && (
-        <ContextMenu
-          state={contextMenu}
-          onClose={() => setContextMenu(null)}
-          onRename={handleRename}
-          onDelete={handleDelete}
-          onNewFolder={handleNewFolder}
-          onNewChat={handleNewChat}
-        />
-      )}
-    </div>
-  );
-}

frontend/src/components/layout/AISidebar.tsx

@@ -1,5 +1,5 @@
 import React, { useState, useEffect } from 'react';
-import { ChatWindow } from '@/components/ai/ChatWindow';
+
 import { ResizablePanel } from '@/components/ui/ResizablePanel';
 import { SuggestionList } from '@/components/ai/SuggestionSidebar';
 import { ImprovementPanel } from '@/components/ai/ImprovementPanel';
@@ -216,7 +216,7 @@ export function AISidebar() {
       );
     }
     if (sessionId) {
-      return <ChatWindow sessionId={sessionId} compact className="h-full" />;
+      return <div className="flex items-center justify-center h-full text-secondary-400 text-sm">KI Chat im Kommunikations-Plugin verfügbar</div>;
     }
     return (
       <div className="flex items-center justify-center h-full text-sm text-red-500">

frontend/src/components/window/AiChatPanel.tsx

@@ -1,12 +1,8 @@
 import { asError } from '@/utils/errorTypes';
 import React, { useState, useRef, useEffect, useCallback } from 'react';
 import { Sparkles, Send } from 'lucide-react';
-import {
-  streamChat,
-  createSession,
-  fetchMessages,
-  type ChatMessage,
-} from '@/api/ai';
+import { streamChat, fetchMessages } from '@/api/ai';
+import { apiClient } from '@/api/client';
 
 interface AiChatPanelProps {
   windowTitle: string;
@@ -30,24 +26,30 @@ export function AiChatPanel({ windowTitle, windowType }: AiChatPanelProps) {
   const scrollRef = useRef<HTMLDivElement>(null);
   const msgIdCounter = useRef(0);
 
-  // Create a sidebar session on mount
+  // Create a comm conversation for AI chat on mount
   useEffect(() => {
     let cancelled = false;
     setLoadingSession(true);
-    createSession({ title: `KI: ${windowTitle}`, is_sidebar: true })
-      .then((session) => {
+    apiClient.post('/comm/conversations', {
+      title: `KI: ${windowTitle}`,
+      participant_ids: [],
+      is_direct: false,
+      metadata: { conversation_type: 'ai' },
+    })
+      .then((res) => {
         if (cancelled) return;
-        setSessionId(session.id);
-        return fetchMessages(session.id).then((msgs: ChatMessage[]) => {
+        const convId = res.data.id;
+        setSessionId(convId);
+        return fetchMessages(convId).then((msgs) => {
           if (cancelled) return;
           setMessages(
-            msgs.map((m) => ({ id: m.id, role: m.role, content: m.content }))
+            msgs.map((m, i) => ({ id: `msg-${i}`, role: m.role, content: m.content }))
           );
         });
       })
       .catch((e) => {
         if (!cancelled) {
-          console.error('AI session creation failed:', e);
+          console.error('AI conversation creation failed:', e);
           setError('KI Chat ist in diesem Kontext nicht verfügbar');
         }
       })
@@ -90,7 +92,7 @@ export function AiChatPanel({ windowTitle, windowType }: AiChatPanelProps) {
         } else if (event.type === 'done') {
           const msgs = await fetchMessages(sessionId);
           setMessages(
-            msgs.map((m) => ({ id: m.id, role: m.role, content: m.content }))
+            msgs.map((m, i) => ({ id: `msg-${i}`, role: m.role, content: m.content }))
           );
           setStreamingContent('');
         } else if (event.type === 'error') {

frontend/src/pages/AIAssistant.tsx

@@ -1,132 +0,0 @@
-import React, { useState, useEffect } from 'react';
-import { SessionList } from '@/components/ai/SessionList';
-import { ChatWindow } from '@/components/ai/ChatWindow';
-import { ResizablePanel } from '@/components/ui/ResizablePanel';
-import { usePluginToolbarStore } from '@/store/pluginToolbarStore';
-import { fetchAgents, createSession, type AIAgent } from '@/api/ai';
-import { ChevronLeft, ExternalLink, Folder, Plus } from 'lucide-react';
-
-export function AIAssistantPage() {
-  const [activeSessionId, setActiveSessionId] = useState<string | null>(null);
-  const [agents, setAgents] = useState<AIAgent[]>([]);
-  const [selectedAgentId, setSelectedAgentId] = useState<string | null>(null);
-  const [mobileView, setMobileView] = useState<'list' | 'chat'>('list');
-  const [refreshKey, setRefreshKey] = useState(0);
-  const { registerItems, unregisterPlugin } = usePluginToolbarStore();
-
-  useEffect(() => { fetchAgents().then(setAgents).catch(() => {}); }, []);
-
-  useEffect(() => {
-    registerItems('ai_assistant', [
-      {
-        id: 'agent-select',
-        plugin: 'ai_assistant',
-        label: 'Agent',
-        type: 'select',
-        group: 'agent',
-        selectOptions: agents.map((a) => ({ value: a.id, label: a.name })),
-        selectValue: selectedAgentId || '',
-        onSelect: (val: string) => setSelectedAgentId(val || null),
-        onClick: () => {},
-      },
-      {
-        id: 'new-chat',
-        plugin: 'ai_assistant',
-        label: 'Neuer Chat',
-        type: 'button',
-        group: 'actions',
-        icon: (
-          <Plus className="w-3.5 h-3.5" strokeWidth={2} />
-        ),
-        onClick: async () => {
-          try {
-            const session = await createSession({ is_sidebar: false });
-            setActiveSessionId(session.id);
-            setMobileView('chat');
-            setRefreshKey(k => k + 1);
-          } catch (e) {
-            console.error('Failed to create session:', e);
-          }
-        },
-      },
-      {
-        id: 'new-folder',
-        plugin: 'ai_assistant',
-        label: 'Ordner',
-        type: 'button',
-        group: 'actions',
-        icon: (
-          <Folder className="w-3.5 h-3.5" strokeWidth={2} />
-        ),
-        onClick: () => {
-          const name = prompt('Ordnername:');
-          if (name) {
-            import('@/api/ai').then(({ createFolder }) => {
-              createFolder({ name }).then(() => setRefreshKey(k => k + 1)).catch(() => {});
-            });
-          }
-        },
-      },
-      {
-        id: 'open-standalone',
-        plugin: 'ai_assistant',
-        label: 'In neuem Fenster',
-        type: 'button',
-        group: 'actions',
-        icon: (
-          <ExternalLink className="w-3.5 h-3.5" strokeWidth={2} />
-        ),
-        onClick: () => {
-          window.open('/ai-assistant-standalone', '_blank', 'width=800,height=600');
-        },
-      },
-    ]);
-    return () => unregisterPlugin('ai_assistant');
-  }, [agents, selectedAgentId, registerItems, unregisterPlugin]);
-
-  const handleSelectSession = (id: string) => { setActiveSessionId(id); setMobileView('chat'); };
-
-  return (
-    <div className="flex h-full" data-testid="ai-assistant-page">
-      {/* Desktop: two-pane layout */}
-      <div className="hidden md:flex">
-        <ResizablePanel
-          initialWidth={288}
-          minWidth={200}
-          maxWidth={500}
-          className="border-r border-secondary-200 bg-white"
-          data-testid="ai-session-pane"
-        >
-          <SessionList key={refreshKey} activeSessionId={activeSessionId} onSelectSession={setActiveSessionId} className="h-full" />
-        </ResizablePanel>
-      </div>
-      <div className="hidden md:flex flex-1 flex-col">
-        {activeSessionId ? <ChatWindow sessionId={activeSessionId} agentId={selectedAgentId} className="flex-1" /> : (
-          <div className="flex-1 flex items-center justify-center text-secondary-400"><div className="text-center"><div className="text-4xl mb-3">🤖</div><div className="text-sm">Wähle einen Chat oder erstelle einen neuen</div></div></div>
-        )}
-      </div>
-      {/* Mobile: single-pane view switching */}
-      <div className="flex md:hidden flex-1 flex-col overflow-hidden">
-        {mobileView === 'list' && (
-          <div className="flex-1 flex flex-col bg-white">
-            <SessionList key={refreshKey} activeSessionId={activeSessionId} onSelectSession={handleSelectSession} className="flex-1" />
-          </div>
-        )}
-        {mobileView === 'chat' && activeSessionId && (
-          <div className="flex-1 flex flex-col">
-            <div className="h-14 flex items-center gap-2 px-3 border-b border-secondary-200 bg-white">
-              <button onClick={() => setMobileView('list')} className="p-2 rounded-lg hover:bg-secondary-100" aria-label="Zurück">
-                <ChevronLeft className="w-5 h-5" strokeWidth={2} />
-              </button>
-              <span className="text-sm font-medium text-secondary-700 truncate">Chat</span>
-            </div>
-            <ChatWindow sessionId={activeSessionId} agentId={selectedAgentId} className="flex-1" />
-          </div>
-        )}
-        {mobileView === 'chat' && !activeSessionId && (
-          <div className="flex-1 flex items-center justify-center text-secondary-400"><div className="text-center"><div className="text-4xl mb-3">🤖</div><div className="text-sm">Wähle einen Chat</div></div></div>
-        )}
-      </div>
-    </div>
-  );
-}

frontend/src/pages/AIAssistantStandalone.tsx

@@ -1,10 +0,0 @@
-import React from 'react';
-import { AIAssistantPage } from './AIAssistant';
-
-export function AIAssistantStandalonePage() {
-  return (
-    <div className="h-screen w-screen overflow-hidden bg-white">
-      <AIAssistantPage />
-    </div>
-  );
-}

frontend/src/pages/Communication.tsx

@@ -11,7 +11,7 @@ import {
 import { ResizablePanel } from '@/components/ui/ResizablePanel';
 import { usePluginToolbarStore } from '@/store/pluginToolbarStore';
 import { apiClient } from '@/api/client';
-import { streamChat, fetchAgents, type AIAgent } from '@/api/ai';
+import { streamChat, fetchAgents, fetchMessages as fetchAiMessages, type AIAgent } from '@/api/ai';
 
 // ─── Types ───
 
@@ -322,7 +322,6 @@ function ChatWindow({ convId, category, onBack }: ChatWindowProps) {
   const [miniApps, setMiniApps] = useState<MiniApp[]>([]);
   const [agents, setAgents] = useState<AIAgent[]>([]);
   const [selectedAgentId, setSelectedAgentId] = useState<string | null>(null);
-  const [aiSessionId, setAiSessionId] = useState<string | null>(null);
   const scrollRef = useRef<HTMLDivElement>(null);
   const wsRef = useRef<WebSocket | null>(null);
 
@@ -331,11 +330,38 @@ function ChatWindow({ convId, category, onBack }: ChatWindowProps) {
     if (!convId) return;
     setLoading(true);
     setError(null);
-    fetchMessages(convId)
-      .then(msgs => { setMessages(msgs); setLoading(false); })
-      .catch(e => { setError(e?.message || 'Fehler beim Laden'); setLoading(false); });
+    if (category === 'ai') {
+      // AI conversations load messages from the AI endpoint
+      fetchAiMessages(convId)
+        .then(msgs => {
+          // Convert {role, content}[] to Message[] format
+          const mapped: Message[] = msgs.map((m, i) => ({
+            id: `ai-msg-${i}`,
+            conversation_id: convId,
+            sender_id: null,
+            sender_type: m.role === 'user' ? 'user' : 'ai',
+            content: m.content,
+            content_format: 'text',
+            created_at: null,
+            edited_at: null,
+            is_pinned: false,
+            blocks: [],
+            attachments: [],
+            reactions: [],
+            reply_to_id: null,
+          }));
+          setMessages(mapped);
+          setLoading(false);
+        })
+        .catch(e => { setError(e?.message || 'Fehler beim Laden'); setLoading(false); });
+    } else {
+      // Regular conversations load from comm endpoint
+      fetchMessages(convId)
+        .then(msgs => { setMessages(msgs as unknown as Message[]); setLoading(false); })
+        .catch(e => { setError(e?.message || 'Fehler beim Laden'); setLoading(false); });
+    }
     markConversationRead(convId).catch(() => {});
-  }, [convId]);
+  }, [convId, category]);
 
   // Load agents and mini-apps
   useEffect(() => {
@@ -386,12 +412,12 @@ function ChatWindow({ convId, category, onBack }: ChatWindowProps) {
     setError(null);
 
     try {
-      if (category === 'ai' && aiSessionId) {
-        // AI streaming chat
+      if (category === 'ai') {
+        // AI streaming chat via comm conversation
         setAiStreaming(true);
         setStreamingContent('');
         let accumulated = '';
-        for await (const event of streamChat(aiSessionId, content, selectedAgentId || undefined)) {
+        for await (const event of streamChat(convId, content, selectedAgentId || undefined)) {
           if (event.type === 'token' && event.content) {
             accumulated += event.content;
             setStreamingContent(accumulated);
@@ -405,8 +431,23 @@ function ChatWindow({ convId, category, onBack }: ChatWindowProps) {
         setAiStreaming(false);
         setStreamingContent('');
         // Reload messages to get the AI response
-        const msgs = await fetchMessages(convId);
-        setMessages(msgs);
+        const msgs = await fetchAiMessages(convId);
+        const mapped: Message[] = msgs.map((m, i) => ({
+          id: `ai-msg-${i}`,
+          conversation_id: convId,
+          sender_id: null,
+          sender_type: m.role === 'user' ? 'user' : 'ai',
+          content: m.content,
+          content_format: 'text',
+          created_at: null,
+          edited_at: null,
+          is_pinned: false,
+          blocks: [],
+          attachments: [],
+          reactions: [],
+          reply_to_id: null,
+        }));
+        setMessages(mapped);
       } else {
         // Regular message
         const msg = await sendMessage(convId, content);
@@ -426,25 +467,10 @@ function ChatWindow({ convId, category, onBack }: ChatWindowProps) {
     }
   };
 
-  const startAiSession = async () => {
-    try {
-      const r = await apiClient.post('/ai/sessions', {
-        title: 'KI Chat',
-        agent_id: selectedAgentId,
-        is_sidebar: false,
-      });
-      setAiSessionId(r.data.id);
-    } catch (e: unknown) { const errObj = asError(e);
-      setError('KI Session konnte nicht gestartet werden');
-    }
-  };
-
-  // Auto-start AI session for AI conversations
+  // Auto-scroll
   useEffect(() => {
-    if (category === 'ai' && !aiSessionId && selectedAgentId) {
-      startAiSession();
-    }
-  }, [category, aiSessionId, selectedAgentId]);
+    if (scrollRef.current) scrollRef.current.scrollTop = scrollRef.current.scrollHeight;
+  }, [messages, streamingContent]);
 
   return (
     <div className="flex flex-col h-full bg-white">
@@ -462,7 +488,7 @@ function ChatWindow({ convId, category, onBack }: ChatWindowProps) {
         {category === 'ai' && agents.length > 0 && (
           <select
             value={selectedAgentId || ''}
-            onChange={(e) => { setSelectedAgentId(e.target.value || null); setAiSessionId(null); }}
+            onChange={(e) => { setSelectedAgentId(e.target.value || null); }}
             className="text-xs border border-secondary-200 rounded px-2 py-1 bg-white"
           >
             {agents.map(a => (

frontend/src/routes/index.tsx

@@ -38,12 +38,10 @@ const TrashPage = React.lazy(() => import('@/pages/Trash').then(m => ({ default:
 const MailPage = React.lazy(() => import('@/pages/Mail').then(m => ({ default: m.MailPage })));
 const MailSettingsPage = React.lazy(() => import('@/pages/MailSettings').then(m => ({ default: m.MailSettingsPage })));
 const SettingsNotificationsPage = React.lazy(() => import('@/pages/SettingsNotifications').then(m => ({ default: m.SettingsNotificationsPage })));
-const AIAssistantPage = React.lazy(() => import('@/pages/AIAssistant').then(m => ({ default: m.AIAssistantPage })));
 const AISettingsPage = React.lazy(() => import('@/pages/AISettings').then(m => ({ default: m.AISettingsPage })));
 const ProactiveAISettings = React.lazy(() => import('@/pages/ProactiveAISettings').then(m => ({ default: m.ProactiveAISettings })));
 const SettingsThemePage = React.lazy(() => import('@/pages/SettingsTheme').then(m => ({ default: m.SettingsThemePage })));
 const SettingsMcpPage = React.lazy(() => import('@/pages/SettingsMcp').then(m => ({ default: m.SettingsMcpPage })));
-const AIAssistantStandalonePage = React.lazy(() => import('@/pages/AIAssistantStandalone').then(m => ({ default: m.AIAssistantStandalonePage })));
 const DmsStandalonePage = React.lazy(() => import('@/pages/DmsStandalone').then(m => ({ default: m.DmsStandalonePage })));
 const CalendarStandalonePage = React.lazy(() => import('@/pages/CalendarStandalone').then(m => ({ default: m.CalendarStandalonePage })));
 const MailStandalonePage = React.lazy(() => import('@/pages/MailStandalone').then(m => ({ default: m.MailStandalonePage })));
@@ -111,8 +109,6 @@ const router = createBrowserRouter([
     element: <LoginPage />,
   },
   {
-    path: '/ai-assistant-standalone',
-    element: <ErrorBoundary>{withSuspense(<AIAssistantStandalonePage />)}</ErrorBoundary>,
   },
   {
     path: '/dms-standalone',
@@ -178,7 +174,6 @@ const router = createBrowserRouter([
           { path: 'overview', element: withSuspense(<AgentsOverviewPage />) },
           { path: 'automation', element: withSuspense(<AutomationDashboardPage />) },
           { path: 'automation-settings', element: withSuspense(<AutomationSettingsPage />) },
-          { path: 'ai-assistant', element: withSuspense(<AIAssistantPage />) },
           { path: 'ai-settings', element: withSuspense(<AISettingsPage />) },
           { path: 'ai-proactive', element: withSuspense(<ProactiveAISettings />) },
           { path: '*', element: withSuspense(<AgentsPlaceholderPage />) },
@@ -258,7 +253,6 @@ const router = createBrowserRouter([
       { path: '/trash', element: <PermissionRoute permission="contacts:read">{withSuspense(<TrashPage />)}</PermissionRoute> },
       { path: '/mail', element: <PermissionRoute permission="mail:read">{withSuspense(<MailPage />)}</PermissionRoute> },
       { path: '/mail/settings', element: <PermissionRoute permission="mail:read">{withSuspense(<MailSettingsPage />)}</PermissionRoute> },
-      { path: '/ai-assistant', element: <PermissionRoute permission="ai:read">{withSuspense(<AIAssistantPage />)}</PermissionRoute> },
       { path: '/reports', element: <PermissionRoute permission="reports:read">{withSuspense(<ReportsPage />)}</PermissionRoute> },
       { path: '/tasks', element: <PermissionRoute permission="tasks:read">{withSuspense(<TasksPage />)}</PermissionRoute> },
       { path: '/communication', element: <PermissionRoute permission="communication:read">{withSuspense(<CommunicationPage />)}</PermissionRoute> },