fix: docker-compose networking and local translator endpoint

- Replace per-service network_mode:bridge with a shared lingvai-net
  so lingvai-app can reach lingvai-translator by hostname
- Set LOCAL_MODEL_ENDPOINT=http://lingvai-translator:5000/predictions
  and REPLICATE_MODE=local via environment so admin panel defaults
  are pre-configured for the local container
- Add depends_on: translator so the app starts after the model is up
- Host port 5030->5000 kept for direct debugging access

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

docker-compose.yml

@@ -0,0 +1,33 @@
+services:
+  lingvai:
+    build: .
+    container_name: lingvai-app
+    ports:
+      - "3030:3000"
+    environment:
+      - ADMIN_PASSWORD=MuieSteaua09
+      - ADMIN_JWT_SECRET=the3-29-mu-ar3rwfd-dsfhui7
+      # Point directly at the translator container over the internal network
+      # (no Replicate API token needed in local mode)
+      - LOCAL_MODEL_ENDPOINT=http://lingvai-translator:5000/predictions
+      - REPLICATE_MODE=local
+    volumes:
+      - ./data:/app/data
+    restart: unless-stopped
+    depends_on:
+      - translator
+    networks:
+      - lingvai-net
+
+  translator:
+    image: r8.im/jigsawstack/text-translate@sha256:454df4c49941c05dea05175bd37686d0872c73c1f9366d1c2505db32ade52a89
+    container_name: lingvai-translator
+    ports:
+      - "5030:5000"   # 5030 on host for direct access / debugging
+    restart: unless-stopped
+    networks:
+      - lingvai-net
+
+networks:
+  lingvai-net:
+    driver: bridge