Initial commit: Plant Disease Identification app

- Next.js 16 App Router project with Tailwind CSS
- Plant disease knowledge base (93 diseases, 25 plants)
- Image upload with client+server preprocessing
- ML inference pipeline with mock/demo fallback
- Responsive results page with disease cards and treatment
- Full test suite (285 passing tests)

apps/web/vitest.config.ts

@@ -0,0 +1,31 @@
+import { defineConfig } from "vitest/config";
+import path from "path";
+
+export default defineConfig({
+  test: {
+    globals: true,
+    environment: "jsdom",
+    include: ["src/**/*.test.ts", "src/**/*.test.tsx"],
+    setupFiles: ["src/test/setup.ts"],
+    alias: {
+      "@/*": path.resolve(__dirname, "./src/*"),
+    },
+    // Override environment for API integration tests
+    testTimeout: 30000,
+    // Skip external processing for optional ML dependencies
+    server: {
+      deps: {
+        external: ["@tensorflow/tfjs-node", "onnxruntime-node"],
+      },
+    },
+  },
+  resolve: {
+    alias: {
+      "@": path.resolve(__dirname, "./src"),
+      // Mock optional ML backends — model-loader falls back to mock mode
+      "@tensorflow/tfjs-node": path.resolve(__dirname, "src/test/mocks/tfjs-node.ts"),
+      "@tensorflow/tfjs": path.resolve(__dirname, "src/test/mocks/tfjs.ts"),
+      "onnxruntime-node": path.resolve(__dirname, "src/test/mocks/onnxruntime-node.ts"),
+    },
+  },
+});