feat: agent platform initial commit

- FastAPI + HTMX UI: dashboard, agents CRUD, chat, audit, tools
- SQLite schema: agents, conversations, messages, audit, sessions
- Code-agent sync (agents/*.py -> DB on startup)
- MCP client with health check
- Token auth (Bearer + session)
- LiteLLM integration via llm.py
- Docker Compose: agent-platform + mcp-tools services
- Smoke tests pass: /health 200, /api/agents 200, / 401

agent_platform/config.py

@@ -0,0 +1,33 @@
+"""Settings via Environment-Variablen."""
+import os
+
+
+class Settings:
+    # LLM
+    LLM_PROVIDER: str = os.getenv("LLM_PROVIDER", "openrouter")
+    LLM_API_KEY: str = os.getenv("LLM_API_KEY", "")
+    LLM_MODEL: str = os.getenv("LLM_MODEL", "anthropic/claude-3.5-sonnet")
+    LLM_API_BASE: str = os.getenv("LLM_API_BASE", "")
+
+    # MCP Tool Server
+    MCP_SERVER_URL: str = os.getenv("MCP_SERVER_URL", "http://mcp-tools:8501/mcp")
+    MCP_TIMEOUT: int = int(os.getenv("MCP_TIMEOUT", "10"))
+
+    # Auth
+    AUTH_TOKEN: str = os.getenv("AUTH_TOKEN", "change-me-in-production")
+
+    # Storage
+    DB_PATH: str = os.getenv("DB_PATH", "/data/agent-platform.db")
+
+    # Server
+    HOST: str = os.getenv("HOST", "0.0.0.0")
+    PORT: int = int(os.getenv("PORT", "8000"))
+    LOG_LEVEL: str = os.getenv("LOG_LEVEL", "info")
+
+    # Limits
+    MAX_HISTORY_MESSAGES: int = int(os.getenv("MAX_HISTORY_MESSAGES", "10"))
+    MAX_PARALLEL_AGENTS: int = int(os.getenv("MAX_PARALLEL_AGENTS", "5"))
+    AGENT_IDLE_TIMEOUT_SEC: int = int(os.getenv("AGENT_IDLE_TIMEOUT_SEC", "300"))
+
+
+settings = Settings()