feat: web deployment workflow

Author: TeeWrath

.github/workflows/deploy_web.yaml

@@ -0,0 +1,87 @@
+name: Deploy Cooketh Flow Web
+
+on:
+  push:
+    branches:
+      - rewrite
+  pull_request:
+    branches:
+      - rewrite
+    types:
+      - closed
+
+permissions:
+  contents: write
+
+jobs:
+  build-and-deploy:
+    if: github.event_name == 'push' || (github.event_name == 'pull_request' && github.event.pull_request.merged == true)
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v4
+
+      - name: Set up Flutter
+        uses: subosito/flutter-action@v2
+        with:
+          flutter-version: '3.29.2'
+          channel: 'stable'
+
+      - name: Enable web support
+        run: flutter config --enable-web
+
+      - name: Check Flutter setup
+        run: flutter doctor
+
+      - name: Install dependencies
+        run: flutter pub get
+
+      - name: Debug environment variables
+        run: |
+          echo "SUPABASE_URL is set: ${{ secrets.SUPABASE_URL != '' }}"
+          echo "SUPABASE_KEY is set: ${{ secrets.SUPABASE_KEY != '' }}"
+        env:
+          SUPABASE_URL: ${{ secrets.SUPABASE_URL }}
+          SUPABASE_KEY: ${{ secrets.SUPABASE_KEY }}
+
+      - name: Build web
+        run: flutter build web --release --no-source-maps --dart-define="SUPABASE_URL=${{ secrets.SUPABASE_URL }}" --dart-define="SUPABASE_KEY=${{ secrets.SUPABASE_KEY }}"
+
+      - name: Debug build output
+        run: |
+          echo "Current directory: $(pwd)"
+          ls -la
+          if [ -d "build/web" ]; then
+            echo "build/web exists"
+            ls -la build/web
+          else
+            echo "Error: build/web directory not found"
+            exit 1
+          fi
+
+      - name: Copy build to temporary directory
+        run: |
+          mkdir -p /tmp/web-build
+          cp -r build/web/* /tmp/web-build/
+
+      - name: Debug temporary directory
+        run: |
+          echo "Temporary directory contents:"
+          ls -la /tmp/web-build/
+
+      - name: Create or update gh-pages branch
+        run: |
+          git config --global user.name 'github-actions[bot]'
+          git config --global user.email 'github-actions[bot]@users.noreply.github.com'
+          git checkout -B gh-pages
+          rm -rf ./*
+          cp -r /tmp/web-build/* .
+          git add .
+          git commit -m "Deploy web build to gh-pages" || echo "No changes to commit"
+          git push origin gh-pages --force
+
+      - name: Debug gh-pages branch contents
+        run: |
+          echo "gh-pages branch contents after deployment:"
+          ls -la