fix(prod): production startup fixes — health endpoint, serveStatic path, entrypoint, docker config

- Add /api/health endpoint for Docker healthchecks
- Fix serveStatic path: dist/public instead of ../public
- Fix entrypoint.sh: DB wait check, npx drizzle-kit migrate, add netcat
- Fix Dockerfile: add bash/netcat, fix COPY order, add tsconfig.node.json
- Fix docker-compose.yml: add OLLAMA/LLM env vars for Node.js fallback
- Fix docker-stack.yml: remove template vars, use env vars instead of secrets
- Fix drizzle.config.ts: add migrations prefix
- Update .env.example with full LLM provider documentation

server/_core/index.ts

@@ -34,6 +34,16 @@ async function startServer() {
   // Configure body parser with larger size limit for file uploads
   app.use(express.json({ limit: "50mb" }));
   app.use(express.urlencoded({ limit: "50mb", extended: true }));
+
+  // Health check endpoint for Docker HEALTHCHECK and load balancers
+  app.get("/api/health", (_req, res) => {
+    res.json({
+      status: "ok",
+      uptime: Math.floor(process.uptime()),
+      timestamp: new Date().toISOString(),
+    });
+  });
+
   // OAuth callback under /api/oauth/callback
   registerOAuthRoutes(app);
   // tRPC API

server/_core/vite.ts

@@ -48,10 +48,9 @@ export async function setupVite(app: Express, server: Server) {
 }
 
 export function serveStatic(app: Express) {
-  const distPath =
-    process.env.NODE_ENV === "development"
-      ? path.resolve(import.meta.dirname, "../..", "dist", "public")
-      : path.resolve(import.meta.dirname, "public");
+  // dist/index.js is the server bundle, dist/public/ is the client build
+  // import.meta.dirname = .../dist → public is at dist/public
+  const distPath = path.resolve(import.meta.dirname, "public");
   if (!fs.existsSync(distPath)) {
     console.error(
       `Could not find the build directory: ${distPath}, make sure to build the client first`