feat: add appointments, campaigns, admin, storage, tests and various updates

- Add new routers: admin, appointments, campaigns
- Add storage service and logging config
- Add migrations directory and test suite with pytest config
- Add supabase_migration_features.sql
- Update models, dependencies, config, and existing routers
- Remove whatsapp_service (deleted)
- Update pyproject.toml and uv.lock dependencies

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

app/routers/chat.py

@@ -124,6 +124,19 @@ async def chat(
     # Get conversation history
     history = _get_conversation_history(conversation["id"], supabase)
 
+    # If an agent has taken over this conversation, stop the bot from responding
+    conv_status = conversation.get("status", "open")
+    if conv_status == "agent_handling":
+        return ChatResponse(
+            response="",
+            session_id=session_id,
+            sources=[],
+            model_used="",
+            tokens_used=0,
+            needs_lead_capture=False,
+            handoff=False,
+        )
+
     # Get company info for context
     company_data = chatbot.get("companies", {}) or {}
     chatbot_config = {
@@ -131,6 +144,19 @@ async def chat(
         "company_name": company_data.get("name", ""),
     }
 
+    # If booking is enabled, inject a note into the system prompt so the bot
+    # can guide users to the booking page
+    if chatbot.get("booking_enabled"):
+        from app.config import settings as _cfg
+        booking_url = f"{_cfg.app_url}/book/{chatbot_id}"
+        booking_note = (
+            f"\n\nAppointment booking: This business accepts appointments online. "
+            f"If the user wants to book an appointment, meeting, or consultation, "
+            f"provide them this booking link: {booking_url}"
+        )
+        existing_prompt = chatbot_config.get("system_prompt") or ""
+        chatbot_config["system_prompt"] = existing_prompt + booking_note
+
     # Run RAG
     result = await rag_engine.process_query(
         query=message.message,