fix(docker): fix Dockerfile build issues and static file serving

- Update npm command from deprecated --only=production to --omit=dev
- Configure vite build output to dist/client directory
- Fix static file path resolution in server to support both tsx and compiled execution modes

Author: mlgzackfly

Dockerfile

@@ -48,7 +48,7 @@ WORKDIR /app
 
 # Install production dependencies only
 COPY package*.json ./
-RUN npm ci --only=production && npm cache clean --force
+RUN npm ci --omit=dev && npm cache clean --force
 
 # Install tsx globally for running TypeScript
 RUN npm install -g tsx

src/server/index.ts

@@ -32,7 +32,14 @@ app.get('/api/health', (req, res) => {
 });
 
 // Serve static files from React app (in production)
-const clientDistPath = path.join(__dirname, '../../client');
+// Handle both cases:
+// 1. When running with tsx from src/server/index.ts: __dirname = /app/src/server, need ../../dist/client
+// 2. When running compiled dist/index.js: __dirname = /app/dist, need ./client
+let clientDistPath = path.join(__dirname, './client');
+if (!existsSync(clientDistPath)) {
+  // Try alternative path for tsx execution
+  clientDistPath = path.join(__dirname, '../../dist/client');
+}
 
 // Check if client dist exists (for production builds)
 if (existsSync(clientDistPath)) {

vite.config.ts

@@ -4,6 +4,9 @@ import path from 'path'
 
 export default defineConfig({
   plugins: [react()],
+  build: {
+    outDir: 'dist/client',
+  },
   resolve: {
     alias: {
       '@': path.resolve(__dirname, './src'),