Add Nostr relay + seed data to Docker deployment

- Add nostr-rs-relay service to docker-compose for persistent
  comments, reactions, and profiles on the dev server
- Add one-shot seeder container that auto-populates the relay
  with test personas, reactions, and comments on first deploy
- Proxy WebSocket connections through nginx at /relay so the
  frontend connects to the relay on the same host (no CORS)
- Make relay URL dynamic: reads from VITE_NOSTR_RELAYS in dev,
  auto-detects /relay proxy path in production Docker builds
- Make seed scripts configurable via RELAY_URL and ORIGIN env vars
- Add wait-for-relay script for reliable container orchestration
- Add "Resume last played" hero banner on My List tab

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

docker-compose.yml

@@ -1,7 +1,8 @@
 version: '3.8'
 
 services:
-  indeedhub:
+  # ── Frontend (nginx serving built Vue app) ───────────────────
+  app:
     build:
       context: .
       dockerfile: Dockerfile
@@ -9,19 +10,49 @@ services:
     restart: unless-stopped
     ports:
       - "7777:7777"
-    environment:
-      - NODE_ENV=production
+    depends_on:
+      seeder:
+        condition: service_completed_successfully
     networks:
       - indeedhub-network
     labels:
       - "com.centurylinklabs.watchtower.enable=true"
     healthcheck:
-      test: ["CMD", "curl", "-f", "http://localhost:7777/"]
+      test: ["CMD", "curl", "-f", "http://localhost:7777/health"]
       interval: 30s
       timeout: 10s
       retries: 3
       start_period: 40s
 
+  # ── Nostr Relay (stores comments, reactions, profiles) ───────
+  relay:
+    image: scsibug/nostr-rs-relay:latest
+    container_name: indeedhub-relay
+    restart: unless-stopped
+    volumes:
+      - relay-data:/usr/src/app/db
+    networks:
+      - indeedhub-network
+
+  # ── Seeder (one-shot: seeds test data into relay, then exits) ─
+  # wait-for-relay.mjs handles readiness polling before seeding.
+  seeder:
+    build:
+      context: .
+      dockerfile: Dockerfile.seed
+    container_name: indeedhub-seeder
+    depends_on:
+      - relay
+    environment:
+      - RELAY_URL=ws://relay:8080
+      - ORIGIN=http://localhost:7777
+    networks:
+      - indeedhub-network
+    restart: "no"
+
 networks:
   indeedhub-network:
     driver: bridge
+
+volumes:
+  relay-data: