fix: vite outputs to dist/public not client/dist

Dockerfile

@@ -49,9 +49,8 @@ WORKDIR /app
 # Copy node_modules from builder (already compiled, including sharp native binaries)
 COPY --from=builder /app/node_modules ./node_modules
 
-# Copy built assets from builder
+# Copy built assets from builder (vite outputs to dist/public, esbuild to dist/)
 COPY --from=builder /app/dist ./dist
-COPY --from=builder /app/client/dist ./client/dist
 
 # Copy package.json (needed for module resolution)
 COPY package.json ./