Add versioned image tags to force Portainer to rebuild images

Docker was reusing old cached images even on redeploy. By adding
explicit image names with version tags (e.g. indeehub-app:v2),
Docker must build new images since the old ones had no tag or a
different tag. Bump the version (v2 -> v3) to force future rebuilds.

Co-authored-by: Cursor <cursoragent@cursor.com>

docker-compose.yml

@@ -16,6 +16,7 @@ version: '3.8'
 services:
   # ── Frontend (nginx serving built Vue app) ──────────────────
   app:
+    image: indeehub-app:v2
     build:
       context: .
       dockerfile: Dockerfile
@@ -43,6 +44,7 @@ services:
 
   # ── Backend API (NestJS) ────────────────────────────────────
   api:
+    image: indeehub-api:v2
     build:
       context: ./backend
       dockerfile: Dockerfile
@@ -175,6 +177,7 @@ services:
 
   # ── FFmpeg Transcoding Worker ───────────────────────────────
   ffmpeg-worker:
+    image: indeehub-ffmpeg:v2
     build:
       context: ./backend
       dockerfile: Dockerfile.ffmpeg