fix(audit): P0-P3 audit fixes — 838 ruff errors → 0, 30 F821 bugs fixed, 118 files changed

- P0: hooks.py 3-tuple fix, trigger_dispatcher Contract, contacts/plugin unregister_actions_by_owner
- P0: 5 test files — check_permission mocks removed, hardcoded DB credential → env var
- P1: attachment_service DmsFile via Contract helper, restore_registry/history_hooks dedup
- P1: mail/plugin restore unregister, mcp_client datetime.now(UTC), saved_views/filters patterns
- P1: ProtectedRoute fail-closed, 13 test assertion fixes (bcrypt, DB-URLs, SECRET_KEYs)
- P2: deprecated notifications → post_system_message (3 files), forgejo Base, report_generator lazy import
- P2: webhooks permissions, deps.py/roles.py plugin perms removed, import_export default
- P2: address/tags/entity_links patterns removed, worker.py Contract-Umgehungen fixed
- P2: 28 frontend TODOs (hardcoded constants, deprecated notification API)
- P3: dead code, duplicates, deprecated imports, private attr, __import__ inline
- P3: 8 frontend TODOs (LucideIcons, inline styles, XSS, i18n)
- ruff: 838 → 0 (612 auto-fix + 246 manual + 27 F821 regression fix)
- F821: 30 → 0 (AutomationDefinition, DmsFile, user_id, Path, Any, String)
- Contract-Umgehungen: 2 neue gefunden (worker.py:169, worker.py:280) und gefixt

tests/test_workspaces.py

@@ -32,6 +32,8 @@ from app.services import workspace_service
 
 async def _seed_tenant_and_user(db: AsyncSession) -> dict:
     """Seed a tenant and a user, return IDs."""
+    from app.core.auth import hash_password
+
     tenant = Tenant(name="Test Tenant", slug="test-tenant")
     db.add(tenant)
     await db.flush()
@@ -39,7 +41,7 @@ async def _seed_tenant_and_user(db: AsyncSession) -> dict:
     user = User(
         email="test@example.com",
         name="Test User",
-        password_hash="dummy",
+        password_hash=hash_password("TestPass123!"),
         is_active=True,
         preferences={},
     )
@@ -59,6 +61,8 @@ async def _seed_tenant_and_user(db: AsyncSession) -> dict:
 
 async def _seed_second_tenant_and_user(db: AsyncSession) -> dict:
     """Seed a second tenant and user for cross-tenant tests."""
+    from app.core.auth import hash_password
+
     tenant = Tenant(name="Other Tenant", slug="other-tenant")
     db.add(tenant)
     await db.flush()
@@ -66,7 +70,7 @@ async def _seed_second_tenant_and_user(db: AsyncSession) -> dict:
     user = User(
         email="other@example.com",
         name="Other User",
-        password_hash="dummy",
+        password_hash=hash_password("TestPass123!"),
         is_active=True,
         preferences={},
     )