Run migrations inline at each service startup instead of init service

Coolify doesn't support service_completed_successfully dependency.
Each Python service now runs 'python run_migrations.py' before its
main process. SQL is idempotent so concurrent runs are safe.

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

docker-compose.yaml

@@ -14,48 +14,37 @@ services:
       timeout: 5s
       retries: 5
 
-  db_migrate:
-    build:
-      context: .
-      dockerfile: Dockerfile
-    command: python run_migrations.py
-    depends_on:
-      timescale_db:
-        condition: service_healthy
-    env_file: .env
-    restart: "no"
-
   ingest_movement:
     build:
       context: .
       dockerfile: Dockerfile
-    command: python ingest_movement_rev.py
+    command: sh -c "python run_migrations.py && python ingest_movement_rev.py"
     restart: always
     depends_on:
-      db_migrate:
-        condition: service_completed_successfully
+      timescale_db:
+        condition: service_healthy
     env_file: .env
 
   ingest_events:
     build:
       context: .
       dockerfile: Dockerfile
-    command: python ingest_events_rev.py
+    command: sh -c "python run_migrations.py && python ingest_events_rev.py"
     restart: always
     depends_on:
-      db_migrate:
-        condition: service_completed_successfully
+      timescale_db:
+        condition: service_healthy
     env_file: .env
 
   webhook_receiver:
     build:
       context: .
       dockerfile: Dockerfile
-    command: uvicorn webhook_receiver_rev:app --host 0.0.0.0 --port 8000 --workers 2
+    command: sh -c "python run_migrations.py && uvicorn webhook_receiver_rev:app --host 0.0.0.0 --port 8000 --workers 2"
     restart: always
     depends_on:
-      db_migrate:
-        condition: service_completed_successfully
+      timescale_db:
+        condition: service_healthy
     env_file: .env
     # No host port binding — Coolify's Traefik proxy routes traffic internally.
     # Set the webhook domain in Coolify UI pointing to this service on port 8000.
@@ -69,8 +58,8 @@ services:
     image: grafana/grafana:11.0.0
     restart: always
     depends_on:
-      db_migrate:
-        condition: service_completed_successfully
+      timescale_db:
+        condition: service_healthy
     environment:
       - GF_SECURITY_ADMIN_PASSWORD=${GRAFANA_ADMIN_PASSWORD}
     volumes: