Add deployment workflow to push code to Gitea and redeploy on Mac Mini

Configure Replit project for deployment to a self-hosted Gitea repository, including a `deploy.sh` script on a Mac Mini to pull changes, stop, rebuild, and restart Docker containers.

Replit-Commit-Author: Agent
Replit-Commit-Session-Id: 1fa9329f-0cec-4a2f-80e8-e26dbae3142e
Replit-Commit-Checkpoint-Type: full_checkpoint
Replit-Commit-Event-Id: 29017a07-e519-4b14-bdf7-b913b959d38f
Replit-Commit-Screenshot-Url: https://storage.googleapis.com/screenshot-production-us-central1/4d696b13-86f2-4c9d-be0d-95b293430047/1fa9329f-0cec-4a2f-80e8-e26dbae3142e/ODGOKcj
Replit-Helium-Checkpoint-Created: true

docker/nginx.conf

@@ -0,0 +1,28 @@
+server {
+    listen 80;
+    server_name _;
+
+    root /usr/share/nginx/html;
+    index index.html;
+
+    # Gzip for static assets
+    gzip on;
+    gzip_types text/css application/javascript application/json image/svg+xml;
+    gzip_min_length 1024;
+
+    # Forward API calls to the api service (same Docker network).
+    # The prefix /api is preserved, which is what the API server expects.
+    location /api/ {
+        proxy_pass http://api:8080;
+        proxy_http_version 1.1;
+        proxy_set_header Host $host;
+        proxy_set_header X-Real-IP $remote_addr;
+        proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
+        proxy_set_header X-Forwarded-Proto $scheme;
+    }
+
+    # SPA fallback — let the client router handle unknown paths.
+    location / {
+        try_files $uri $uri/ /index.html;
+    }
+}