feat(android): APK loads live web, fix cold-start deep links for Google OAuth

APK architecture change: replaces bundled React SPA with minimal redirect
page that always loads live web content. No more APK rebuilds for web changes.

Root cause of OAuth failure on Android:
1. Cold-start deep links lost — APK's old bundled JS called onOpenUrl()
   (warm-start listener only) but NOT getCurrent() which is required for
   cold-start deep links. Fix: redirect page + setupDeepLinkHandler both
   call getCurrent() before redirecting/navigating.
2. Session cookie was dropped — renderTauriDeepLinkPage returned a raw
   new Response() which overwrote the Set-Cookie header set by the
   callback handler. Fix: inject Set-Cookie into the Response.
3. tauri.conf.json frontendDist → "./web/dist-tauri" (redirect page)
4. Added @tauri-apps/plugin-deep-link and @tauri-apps/plugin-opener as
   web app deps so live-web imports work in Tauri WebView.

Co-Authored-By: Claude <noreply@anthropic.com>

README.md

@@ -4,7 +4,7 @@
   <h1 align="center">ZeaVis Edu</h1>
   <p align="center">
     <strong>Asisten Edukasi Interaktif untuk Deteksi Penyakit Daun Jagung</strong><br>
-    <em>Computer Vision &bull; EfficientNetV2B0 &bull; Transfer Learning</em>
+    <em>Computer Vision &bull; EfficientNetV2B0 &bull; Rust ONNX Runtime &bull; Tauri 2 Android</em>
   </p>
 </p>
 
@@ -16,6 +16,7 @@
   <a href="#-jadwal"><b>Jadwal</b></a> &bull;
   <a href="#-tech-stack"><b>Tech Stack</b></a> &bull;
   <a href="#-memulai"><b>Memulai</b></a> &bull;
+  <a href="#-platform"><b>Platform</b></a> &bull;
   <a href="#-dokumentasi"><b>Dokumentasi</b></a>
 </p>
 
@@ -79,7 +80,7 @@ ZeaVis Edu menggunakan **Computer Vision** sebagai asisten edukasi interaktif:
 | Klasifikasi 3 penyakit + 1 daun sehat | Penyakit pada batang atau buah jagung |
 | Deteksi berbasis unggah gambar daun | Prediksi tanpa input gambar |
 | Rekomendasi obat & penanganan | Diagnosis pengganti ahli/POPT |
-| Aplikasi web edukatif | Aplikasi mobile native |
+| Aplikasi Web + Android (Tauri 2) | Aplikasi iOS |
 
 ### 4 Kelas yang Diklasifikasikan
 
@@ -98,7 +99,7 @@ ZeaVis Edu menggunakan **Computer Vision** sebagai asisten edukasi interaktif:
 | 2 | **Model ML** | Model Computer Vision terlatih di Google Colab, siap produksi |
 | 3 | **UI Antarmuka** | Front-End berbasis React + Vite dengan fitur unggah gambar |
 | 4 | **Back-End Integration** | API + ML Service untuk inferensi real-time via Docker |
-| 5 | **Prototipe Akhir** | Aplikasi web final dengan klasifikasi + modul edukasi (rekomendasi obat & penanganan) |
+| 5 | **Prototipe Akhir** | Aplikasi Web + Android (Tauri 2) dengan klasifikasi & modul edukasi (rekomendasi obat & penanganan) |
 
 ---
 
@@ -131,7 +132,8 @@ ZeaVis Edu menggunakan **Computer Vision** sebagai asisten edukasi interaktif:
 .
 ├── apps/
 │   ├── api/                  # Backend Elysia/Bun + Drizzle ORM + PostgreSQL
-│   ├── ml-service/           # Rust/Axum + ONNX Runtime inference service
+│   ├── ml-service/           # Rust/Axum + ONNX Runtime inference engine
+│   ├── tauri/                # Tauri 2 mobile wrapper → Android APK
 │   └── web/                  # Frontend React + Vite + Tailwind CSS
 ├── Machine_Learning/         # Pipeline dataset, training Colab, ekspor model
 │   └── README.md             # ⤷ Panduan lengkap pipeline ML
@@ -147,8 +149,9 @@ ZeaVis Edu menggunakan **Computer Vision** sebagai asisten edukasi interaktif:
 | Komponen | Teknologi | Dokumentasi |
 |---|---|---|
 | Web Frontend | React, Vite, Tailwind, Zustand, TanStack Query | `apps/web/` |
+| Android App | Tauri 2, Rust, WebView, Deep Link OAuth | `apps/tauri/` |
 | API Backend | Bun, Elysia, Drizzle ORM, PostgreSQL | `apps/api/` |
-| ML Inference | Rust, Axum, ONNX Runtime | [`apps/ml-service/README.md`](apps/ml-service/README.md) |
+| ML Inference Engine | Rust, Axum, ONNX Runtime | [`apps/ml-service/README.md`](apps/ml-service/README.md) |
 | ML Pipeline | Python, TensorFlow/Keras, EfficientNetV2B0 | [`Machine_Learning/README.md`](Machine_Learning/README.md) |
 | Infrastruktur | Docker, Coolify, Traefik, Tailscale | [`infra/README.md`](infra/README.md) |
 | Telemetry | Prometheus, ClickHouse, Vector, Vue 3 | `telemetry/` |
@@ -157,15 +160,18 @@ ZeaVis Edu menggunakan **Computer Vision** sebagai asisten edukasi interaktif:
 
 ## 🛠️ Tech Stack
 
-### Frontend
+### Frontend & Mobile
 React &bull; Vite &bull; TypeScript &bull; React Router &bull; TanStack Query &bull; Zustand &bull; Tailwind CSS
+**Tauri 2** (Android) &bull; Rust &bull; WebView &bull; Deep Link OAuth
 
 ### Backend API
 Bun &bull; Elysia &bull; Drizzle ORM &bull; PostgreSQL &bull; prom-client
 
 ### Machine Learning
 Python &bull; TensorFlow/Keras &bull; EfficientNetV2B0 &bull; Google Colab (GPU T4)
-Rust &bull; Axum &bull; ONNX Runtime &bull; TFLite &bull; TensorFlow.js
+
+### Inference Engine
+**Rust** &bull; **Axum** &bull; **ONNX Runtime** &bull; TFLite &bull; TensorFlow.js
 
 ### DevOps & Infrastruktur
 Docker &bull; Docker Compose &bull; Coolify &bull; Traefik &bull; Tailscale &bull; GitHub Actions (CI/CD)
@@ -181,7 +187,8 @@ Prometheus &bull; Metric Ingester (Go) &bull; Vector &bull; ClickHouse &bull; Qu
 
 - **Bun** — runtime & package manager
 - **Python 3.9–3.11** — pipeline ML
-- **Rust & Cargo** — `apps/ml-service`
+- **Rust & Cargo** — `apps/ml-service` (inference) & `apps/tauri` (Android)
+- **Java 21 + Android SDK** — build Android APK
 - **Docker & Docker Compose** — deployment & telemetry
 - **PostgreSQL** — backend API
 
@@ -199,7 +206,9 @@ bun install
 bun run dev                # Semua service (web + api)
 cd apps/web && bun run dev # Hanya frontend
 cd apps/api && bun run start # Hanya backend API
-cd apps/ml-service && cargo run  # Hanya ML service (port 8000)
+cd apps/ml-service && cargo run  # ML inference engine (port 8000)
+cd apps/tauri && bun run tauri dev        # Tauri desktop dev
+cd apps/tauri && bun run tauri android dev  # Tauri Android dev
 ```
 
 ### Environment Variables
@@ -236,6 +245,46 @@ make telemetry-up          # Telemetry stack
 
 ---
 
+## 📱 Platform
+
+ZeaVis Edu tersedia di **dua platform** dari satu codebase:
+
+| Platform | Teknologi | Build |
+|---|---|---|
+| **Web** | React + Vite → Static SPA | `bun run build` |
+| **Android** | Tauri 2 + Rust → WebView APK | `cd apps/tauri && bun run tauri android build --apk` |
+
+### Tauri 2 Android
+
+Aplikasi Android membungkus frontend web yang sama dalam **WebView native** menggunakan **Tauri 2**, memberikan akses ke API native Android tanpa menulis ulang UI.
+
+**Fitur Android:**
+- **Google OAuth** — Login via system browser + deep link `zeavisedu://` kembali ke app
+- **Kamera** — Izin `CAMERA` untuk unggah foto daun jagung langsung dari kamera
+- **Tauri Plugin Opener** — Buka URL eksternal di system browser
+- **Tauri Plugin Deep Link** — Tangkap OAuth callback tanpa memerlukan server redirect
+
+**CI/CD Android:**
+- GitHub Actions workflow `.github/workflows/android.yml`
+- Build otomatis di setiap push/PR ke `main`
+- Patch `AndroidManifest.xml` untuk menambahkan izin kamera + intent filter deep link
+- APK ditandatangani (signed) via `apksigner` + release ke GitHub Releases
+
+```bash
+# Development Android (butuh Android SDK + emulator/device)
+cd apps/tauri
+bun run tauri android init        # Init project Android
+bun run tauri android dev         # Dev dengan hot reload
+bun run tauri android build --apk # Build APK production
+
+# CI/CD — dijalankan otomatis via GitHub Actions
+.github/workflows/android.yml
+```
+
+> Konfigurasi: `apps/tauri/tauri.conf.json` &bull; `apps/tauri/gen/android/`
+
+---
+
 ## 📚 Dokumentasi
 
 | Dokumen | Isi |

apps/api/src/routes/auth.ts

@@ -314,12 +314,18 @@ export const authRoutes = new Elysia({ prefix: '/api/v1/auth' })
       }
 
       const token = await createSession(user.id);
-      set.headers['Set-Cookie'] = createSessionCookie(token, request.headers);
+      const sessionCookie = createSessionCookie(token, request.headers);
 
       authCounter.labels('login', 'true').inc();
 
       const successUrl = `${env.webAppUrl}/login?token=${encodeURIComponent(token)}`;
-      if (platform === 'tauri') return renderTauriDeepLinkPage(successUrl);
+      if (platform === 'tauri') {
+        // Inject Set-Cookie into the response so the browser gets it on redirect
+        const resp = renderTauriDeepLinkPage(successUrl);
+        resp.headers.set('Set-Cookie', sessionCookie);
+        return resp;
+      }
+      set.headers['Set-Cookie'] = sessionCookie;
       set.status = 302;
       set.headers['Location'] = successUrl;
     } catch (err) {

apps/tauri/tauri.conf.json

@@ -4,10 +4,10 @@
   "version": "0.1.0",
   "identifier": "com.zeavis.edu",
   "build": {
-    "frontendDist": "../web/dist",
+    "frontendDist": "../web/dist-tauri",
     "devUrl": "http://localhost:5173",
-    "beforeBuildCommand": "cd ../web && bun run build",
-    "beforeDevCommand": "cd ../web && bun run dev"
+    "beforeBuildCommand": "echo 'Nothing to build (APK loads live web content)'",
+    "beforeDevCommand": "echo 'Dev mode - connect to localhost:5173'"
   },
   "app": {
     "withGlobalTauri": false,

apps/web/dist-tauri/index.html

@@ -0,0 +1,44 @@
+<!DOCTYPE html>
+<html>
+<head>
+  <meta charset="utf-8">
+  <meta name="viewport" content="width=device-width,initial-scale=1">
+  <title>ZeaVis Edu</title>
+  <script>
+    var LIVE = 'https://zeavisedu.asepharyana.my.id';
+    var T = window.__TAURI_INTERNALS__;
+
+    function navigate(path) {
+      window.location.replace(LIVE + path);
+    }
+
+    // On cold start, check if the app was opened via a deep link (Google OAuth)
+    // before redirecting to the live web app.
+    if (T && T.invoke) {
+      T.invoke('plugin:deep-link|get_current')
+        .then(function(urls) {
+          if (urls && urls.length > 0 && urls[0]) {
+            try {
+              var u = new URL(urls[0]);
+              var target = u.pathname + u.search + u.hash;
+              if (target && target !== '/') {
+                // Preserve full path + query (e.g. /login?token=xxx)
+                navigate(target);
+                return;
+              }
+            } catch (e) { /* malformed URL — fall through */ }
+          }
+          // No deep link — redirect to live app home
+          navigate('/');
+        })
+        .catch(function() { navigate('/'); });
+    } else {
+      // Not in Tauri (dev mode or unknown) — redirect to live
+      navigate('/');
+    }
+  </script>
+</head>
+<body style="background:#f0fdf4;font-family:sans-serif;display:flex;align-items:center;justify-content:center;min-height:100vh;margin:0">
+  <p style="color:#16a34a">Memuat ZeaVis Edu...</p>
+</body>
+</html>

apps/web/package.json

@@ -12,6 +12,8 @@
   "dependencies": {
     "@radix-ui/react-slot": "^1.2.4",
     "@tanstack/react-query": "^5.100.11",
+    "@tauri-apps/plugin-deep-link": "^2",
+    "@tauri-apps/plugin-opener": "^2",
     "@vitejs/plugin-react": "^6.0.2",
     "@zeavis/shared": "workspace:*",
     "class-variance-authority": "^0.7.1",

apps/web/src/lib/tauri.ts

@@ -29,14 +29,9 @@ export async function openUrl(url: string): Promise<void> {
  * callback page redirects to zeavisedu://... which triggers this listener.
  * We extract the path + query and navigate the WebView there.
  */
-export async function setupDeepLinkHandler(): Promise<void> {
-  if (!isTauri()) return;
-
-  const { onOpenUrl } = await import('@tauri-apps/plugin-deep-link');
-  onOpenUrl((urls) => {
-    for (const url of urls) {
+function processDeepLinkUrl(url: string): void {
   // url looks like: zeavisedu://login/login?token=xxx
-      // Extract path + query after the host
+  // We need to extract path+query and navigate the WebView there
   try {
     const u = new URL(url);
     const target = u.pathname + u.search + u.hash;
@@ -46,15 +41,30 @@ export async function setupDeepLinkHandler(): Promise<void> {
     }
   } catch { /* try fallback below */ }
 
-      // Fallback: extract everything after scheme, handling both // and /
+  // Fallback: handle both double-slash (://) and single-slash (:/) schemes
   let match = url.match(/^[^:]+:\/\/(?:[^/]+)?(\/.*)?$/);
   if (!match) {
-        // Also handle single-slash non-hierarchical URLs (e.g. zeavisedu:/path)
     match = url.match(/^[^:]+:\/(\/.*)?$/);
   }
   if (match?.[1]) {
     window.location.href = match[1];
   }
 }
+
+export async function setupDeepLinkHandler(): Promise<void> {
+  if (!isTauri()) return;
+
+  const { onOpenUrl, getCurrent } = await import('@tauri-apps/plugin-deep-link');
+
+  // Handle cold-start deep links (app opened via intent)
+  getCurrent().then((urls) => {
+    if (urls?.[0]) processDeepLinkUrl(urls[0]);
+  }).catch(() => { /* ignore */ });
+
+  // Handle warm-start deep links (app already running, new intent received)
+  onOpenUrl((urls) => {
+    for (const url of urls) {
+      processDeepLinkUrl(url);
+    }
   });
 }

bun.lock

@@ -53,6 +53,8 @@
       "dependencies": {
         "@radix-ui/react-slot": "^1.2.4",
         "@tanstack/react-query": "^5.100.11",
+        "@tauri-apps/plugin-deep-link": "^2",
+        "@tauri-apps/plugin-opener": "^2",
         "@vitejs/plugin-react": "^6.0.2",
         "@zeavis/shared": "workspace:*",
         "class-variance-authority": "^0.7.1",