feat: Gitea Actions CI/CD, Docker registry images, drive drag-and-drop

- Add .gitea/workflows/docker-build.yml: builds backend and frontend
  Docker images on every push, pushes to Gitea Container Registry
  (git.necloud.us/nate/cloudlink/{backend,frontend}:latest + SHA tag)
- Add desktop build job: Linux AppImage and Windows NSIS installer via
  Wine cross-compilation, uploaded as workflow artifacts
- Add release job: creates a Gitea release with installers attached when
  a v* tag is pushed
- Add deploy job: SSH pull + restart on pushes to master
- docker-compose.yml: add image: fields alongside build: so the server
  can pull pre-built images with docker compose pull
- DrivePage: add drag-and-drop upload with full-screen drop overlay;
  refactor upload logic into a shared uploadFile callback

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

.gitea/workflows/docker-build.yml

@@ -0,0 +1,179 @@
+name: Build & Release
+
+on:
+  push:
+    branches: [master, main]
+    tags: ['v*']
+  pull_request:
+    branches: [master, main]
+
+env:
+  REGISTRY: git.necloud.us
+  OWNER: nate
+  REPO: cloudlink
+
+jobs:
+  # ─── Docker: Backend ────────────────────────────────────────────────────────
+  build-backend:
+    name: Docker / backend
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+
+      - uses: docker/setup-buildx-action@v3
+
+      - name: Log in to registry
+        if: github.event_name != 'pull_request'
+        uses: docker/login-action@v3
+        with:
+          registry: ${{ env.REGISTRY }}
+          username: ${{ secrets.REGISTRY_USER }}
+          password: ${{ secrets.REGISTRY_TOKEN }}
+
+      - uses: docker/build-push-action@v5
+        with:
+          context: ./backend
+          file: ./backend/Dockerfile
+          push: ${{ github.event_name != 'pull_request' }}
+          tags: |
+            ${{ env.REGISTRY }}/${{ env.OWNER }}/${{ env.REPO }}/backend:latest
+            ${{ env.REGISTRY }}/${{ env.OWNER }}/${{ env.REPO }}/backend:${{ github.sha }}
+          cache-from: type=registry,ref=${{ env.REGISTRY }}/${{ env.OWNER }}/${{ env.REPO }}/backend:cache
+          cache-to: type=registry,ref=${{ env.REGISTRY }}/${{ env.OWNER }}/${{ env.REPO }}/backend:cache,mode=max
+
+  # ─── Docker: Frontend ───────────────────────────────────────────────────────
+  build-frontend:
+    name: Docker / frontend
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+
+      - uses: docker/setup-buildx-action@v3
+
+      - name: Log in to registry
+        if: github.event_name != 'pull_request'
+        uses: docker/login-action@v3
+        with:
+          registry: ${{ env.REGISTRY }}
+          username: ${{ secrets.REGISTRY_USER }}
+          password: ${{ secrets.REGISTRY_TOKEN }}
+
+      - uses: docker/build-push-action@v5
+        with:
+          context: ./frontend
+          file: ./frontend/Dockerfile
+          push: ${{ github.event_name != 'pull_request' }}
+          build-args: |
+            VITE_API_URL=/api
+            VITE_WS_URL=/ws
+          tags: |
+            ${{ env.REGISTRY }}/${{ env.OWNER }}/${{ env.REPO }}/frontend:latest
+            ${{ env.REGISTRY }}/${{ env.OWNER }}/${{ env.REPO }}/frontend:${{ github.sha }}
+          cache-from: type=registry,ref=${{ env.REGISTRY }}/${{ env.OWNER }}/${{ env.REPO }}/frontend:cache
+          cache-to: type=registry,ref=${{ env.REGISTRY }}/${{ env.OWNER }}/${{ env.REPO }}/frontend:cache,mode=max
+
+  # ─── Desktop installers (Linux + Windows, built on Linux runner) ─────────────
+  build-desktop:
+    name: Desktop / Linux & Windows
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+
+      - uses: actions/setup-node@v4
+        with:
+          node-version: '20'
+          cache: 'npm'
+          cache-dependency-path: desktop/package-lock.json
+
+      - name: Install desktop dependencies
+        working-directory: desktop
+        run: npm ci
+
+      - name: Install Wine (Windows cross-compile)
+        run: |
+          sudo dpkg --add-architecture i386
+          sudo apt-get update -q
+          sudo apt-get install -y --no-install-recommends wine wine32 wine64
+
+      - name: Build Linux AppImage
+        working-directory: desktop
+        env:
+          # electron-builder reads this to avoid interactive prompts
+          GH_TOKEN: unused
+        run: npx electron-builder --linux AppImage --x64
+
+      - name: Build Windows NSIS installer
+        working-directory: desktop
+        env:
+          GH_TOKEN: unused
+        run: npx electron-builder --win nsis --x64
+
+      - uses: actions/upload-artifact@v4
+        with:
+          name: desktop-linux-windows-${{ github.sha }}
+          path: |
+            desktop/dist/*.AppImage
+            desktop/dist/*.exe
+          if-no-files-found: warn
+          retention-days: 30
+
+  # ─── Deploy (on push to master only, not PRs or tags) ───────────────────────
+  deploy:
+    name: Deploy to server
+    runs-on: ubuntu-latest
+    needs: [build-backend, build-frontend]
+    if: github.event_name == 'push' && (github.ref == 'refs/heads/master' || github.ref == 'refs/heads/main')
+    steps:
+      - name: SSH deploy
+        uses: appleboy/ssh-action@v1
+        with:
+          host: ${{ secrets.DEPLOY_HOST }}
+          username: ${{ secrets.DEPLOY_USER }}
+          key: ${{ secrets.DEPLOY_SSH_KEY }}
+          script: |
+            cd ${{ secrets.DEPLOY_PATH }}
+            echo "${{ secrets.REGISTRY_TOKEN }}" | docker login git.necloud.us -u "${{ secrets.REGISTRY_USER }}" --password-stdin
+            docker compose pull backend frontend
+            docker compose up -d --no-build backend frontend
+            docker logout git.necloud.us
+            docker image prune -f
+
+  # ─── Release (only on v* tags) ───────────────────────────────────────────────
+  release:
+    name: Create release
+    runs-on: ubuntu-latest
+    needs: [build-desktop, build-backend, build-frontend]
+    if: startsWith(github.ref, 'refs/tags/v')
+    steps:
+      - name: Download desktop artifacts
+        uses: actions/download-artifact@v4
+        with:
+          name: desktop-linux-windows-${{ github.sha }}
+          path: ./release-assets
+
+      - name: Publish Gitea release
+        env:
+          GITEA_TOKEN: ${{ secrets.REGISTRY_TOKEN }}
+          TAG: ${{ github.ref_name }}
+          SHA: ${{ github.sha }}
+        run: |
+          # Create the release
+          RELEASE=$(curl -sf -X POST \
+            -H "Authorization: token $GITEA_TOKEN" \
+            -H "Content-Type: application/json" \
+            "https://git.necloud.us/api/v1/repos/nate/cloudlink/releases" \
+            -d "{\"tag_name\":\"$TAG\",\"name\":\"CloudLink $TAG\",\"body\":\"Docker images pushed to registry. Desktop installers attached below.\"}")
+
+          RELEASE_ID=$(echo "$RELEASE" | python3 -c "import sys,json; print(json.load(sys.stdin)['id'])")
+          echo "Release ID: $RELEASE_ID"
+
+          # Upload each installer as a release asset
+          for file in ./release-assets/*; do
+            NAME=$(basename "$file")
+            echo "Uploading $NAME..."
+            curl -sf -X POST \
+              -H "Authorization: token $GITEA_TOKEN" \
+              -H "Content-Type: application/octet-stream" \
+              "https://git.necloud.us/api/v1/repos/nate/cloudlink/releases/$RELEASE_ID/assets?name=$NAME" \
+              --data-binary @"$file"
+          done

docker-compose.yml

@@ -20,6 +20,7 @@ services:
       retries: 5
 
   backend:
+    image: git.necloud.us/nate/cloudlink/backend:latest
     build:
       context: ./backend
       dockerfile: Dockerfile
@@ -39,6 +40,7 @@ services:
         condition: service_healthy
 
   frontend:
+    image: git.necloud.us/nate/cloudlink/frontend:latest
     build:
       context: ./frontend
       dockerfile: Dockerfile

frontend/src/pages/DrivePage.tsx

@@ -1,4 +1,4 @@
-import { useRef, useState, useEffect } from 'react';
+import { useRef, useState, useEffect, useCallback } from 'react';
 import { useQuery, useQueryClient } from '@tanstack/react-query';
 import { Upload, File, Trash2, Download, Lock } from 'lucide-react';
 import { formatDistanceToNow } from 'date-fns';
@@ -34,6 +34,7 @@ export default function DrivePage() {
   const qc = useQueryClient();
   const inputRef = useRef<HTMLInputElement>(null);
   const [uploading, setUploading] = useState(false);
+  const [dragOver, setDragOver] = useState(false);
   const [decryptedNames, setDecryptedNames] = useState<Record<string, string>>({});
 
   const { data: files = [] } = useQuery<DriveFile[]>({
@@ -60,11 +61,9 @@ export default function DrivePage() {
     })();
   }, [files, masterKey]);
 
-  async function handleUpload(e: React.ChangeEvent<HTMLInputElement>) {
-    const file = e.target.files?.[0];
-    if (!file || !masterKey) return;
+  const uploadFile = useCallback(async (file: File) => {
+    if (!masterKey) return;
     setUploading(true);
-
     try {
       const fileKey = await generateFileKey();
       const encryptedBlob = await encryptFile(file, fileKey);
@@ -83,6 +82,18 @@ export default function DrivePage() {
       setUploading(false);
       if (inputRef.current) inputRef.current.value = '';
     }
+  }, [masterKey, qc]);
+
+  function handleUpload(e: React.ChangeEvent<HTMLInputElement>) {
+    const file = e.target.files?.[0];
+    if (file) uploadFile(file);
+  }
+
+  function handleDrop(e: React.DragEvent) {
+    e.preventDefault();
+    setDragOver(false);
+    const file = e.dataTransfer.files[0];
+    if (file) uploadFile(file);
   }
 
   async function handleDownload(f: DriveFile) {
@@ -125,11 +136,25 @@ export default function DrivePage() {
         <input ref={inputRef} type="file" className="hidden" onChange={handleUpload} />
       </header>
 
-      <div className="flex-1 overflow-y-auto p-6">
+      <div
+        className="flex-1 overflow-y-auto p-6"
+        onDragOver={(e) => { e.preventDefault(); setDragOver(true); }}
+        onDragLeave={() => setDragOver(false)}
+        onDrop={handleDrop}
+      >
+        {dragOver && (
+          <div className="fixed inset-0 z-50 flex items-center justify-center bg-black/60 pointer-events-none">
+            <div className="flex flex-col items-center gap-3 bg-surface-1 border-2 border-dashed border-accent rounded-2xl px-16 py-12">
+              <Upload className="w-12 h-12 text-accent" />
+              <p className="text-lg font-semibold">Drop to encrypt &amp; upload</p>
+            </div>
+          </div>
+        )}
+
         {files.length === 0 ? (
           <div className="flex flex-col items-center justify-center h-48 text-slate-500 gap-3">
             <File className="w-10 h-10" />
-            <p>No files yet — upload your first encrypted file</p>
+            <p>No files yet — drag &amp; drop or click Upload</p>
           </div>
         ) : (
           <div className="grid grid-cols-1 gap-2">