feat(B-HOOK): Lifecycle Hooks + Outbox Events — 55 neue Hooks, 10 Domain Events

B-HOOK-CORE: Company Hooks (6: before/after create/update/delete)
B-HOOK-MAIL: Mail Hooks (5: after_receive, before/after_delete, before/after_move)
B-HOOK-DMS: DMS Hooks (10: after_upload, before/after_update/delete/restore, folder CRUD)
B-HOOK-CAL: Calendar Hooks (4: before/after update/delete)
B-HOOK-TASK: Task Hooks (6: before/after create/update/delete)
B-HOOK-COMM: Communication Hooks (8: conversation create, message/edit/delete)
B-HOOK-AI: Agent Hooks (2: before/after_run)
B-HOOK-WF: Workflow Hooks (4: before/after_start, after_complete/cancel)
B-HOOK-TAG: Tag Hooks (8: create/assign/unassign/delete)
B-HOOK-SEARCH: Search Filters (2: before/after_search)

B-EVT-OUTBOX: 10 Domain Events (task.completed, file.created/deleted/restored, mail.received, workflow.started/completed/cancelled, agent.run_started/completed)

B-HOOK-TEST: 79 Tests in test_lifecycle_hooks.py — alle grün
B-HOOK-DOC: Plugin-Dev-Guide Kapitel 8 aktualisiert (Hook-Liste + Outbox Event-Liste)

app/plugins/builtins/calendar/routes.py

@@ -612,6 +612,8 @@ async def update_entry(
     if not has_write:
         raise HTTPException(403, detail={"detail": "No write permission", "code": "forbidden"})
 
+    from app.core.hooks import do_action
+    await do_action("calendar.before_update", body=body, tenant_id=tenant_id, user_id=user_id, entry_id=entry_id)
     # Apply updates
     if body.title is not None:
         entry.title = body.title
@@ -646,6 +648,8 @@ async def update_entry(
 
     await db.flush()
     await db.refresh(entry)
+    from app.core.hooks import do_action
+    await do_action("calendar.after_update", entry_id=str(entry.id), tenant_id=tenant_id, user_id=user_id)
     return _entry_to_dict(entry)
 
 
@@ -664,8 +668,12 @@ async def delete_entry(
     has_write = await _check_write_permission(db, entry.calendar_id, user_id, role)
     if not has_write:
         raise HTTPException(403, detail={"detail": "No write permission", "code": "forbidden"})
+    from app.core.hooks import do_action
+    await do_action("calendar.before_delete", tenant_id=tenant_id, user_id=user_id, entry_id=entry_id)
     entry.deleted_at = datetime.now(UTC)
     await db.flush()
+    from app.core.hooks import do_action
+    await do_action("calendar.after_delete", tenant_id=tenant_id, user_id=user_id, entry_id=entry_id)
     return Response(status_code=204)