Optimize CI workflows for faster execution

Performance improvements:
- Cache node_modules in addition to ~/.npm to skip dependency installation
- Add TypeScript incremental compilation caching with tsBuildInfoFile
- Parallelize lint and typecheck steps to run concurrently
- Add performance flags: --prefer-offline, --no-audit, --no-fund for npm ci
- Increase Node.js memory limit to 4GB and thread pool size
- Cache build output directory for faster rebuilds
- Upgrade TypeScript target to ES2020 for faster compilation
- Disable Next.js telemetry to reduce overhead

Expected reduction: 5+ minutes → 2-3 minutes

🤖 Generated with [Claude Code](https://claude.ai/code)

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

.forgejo/workflows/ci.yml

@@ -20,7 +20,9 @@ jobs:
       - name: Cache dependencies
         uses: actions/cache@v3
         with:
-          path: ~/.npm
+          path: |
+            ~/.npm
+            node_modules
           key: ${{ runner.os }}-node-${{ hashFiles('**/package-lock.json') }}
           restore-keys: |
             ${{ runner.os }}-node-
@@ -28,22 +30,42 @@ jobs:
       - name: Cache Next.js build
         uses: actions/cache@v3
         with:
-          path: ${{ github.workspace }}/.next/cache
+          path: |
+            ${{ github.workspace }}/.next/cache
+            ${{ github.workspace }}/out
           key: ${{ runner.os }}-nextjs-${{ hashFiles('**/package-lock.json') }}-${{ hashFiles('**/*.[jt]s', '**/*.[jt]sx') }}
           restore-keys: |
             ${{ runner.os }}-nextjs-${{ hashFiles('**/package-lock.json') }}-
+            ${{ runner.os }}-nextjs-
+            
+      - name: Cache TypeScript
+        uses: actions/cache@v3
+        with:
+          path: |
+            tsconfig.tsbuildinfo
+            .next/types
+          key: ${{ runner.os }}-tsc-${{ hashFiles('tsconfig.json', 'src/**/*.ts', 'src/**/*.tsx') }}
+          restore-keys: |
+            ${{ runner.os }}-tsc-
             
       - name: Install dependencies
-        run: npm ci
+        run: npm ci --prefer-offline --no-audit --no-fund
+        env:
+          NODE_OPTIONS: '--max-old-space-size=4096'
+          UV_THREADPOOL_SIZE: 16
         
-      - name: Run linting
-        run: npm run lint
-        
-      - name: Run type checking
-        run: npm run typecheck
+      - name: Run linting and type checking in parallel
+        run: |
+          npm run lint &
+          npm run typecheck &
+          wait
+        env:
+          NODE_OPTIONS: '--max-old-space-size=4096'
         
       - name: Build application
         run: npm run build
         env:
           # Use empty string for YOUTUBE_API_KEY during CI build
           YOUTUBE_API_KEY: ""
+          NODE_OPTIONS: '--max-old-space-size=4096'
+          NEXT_TELEMETRY_DISABLED: 1

.forgejo/workflows/deploy.yml

@@ -19,7 +19,9 @@ jobs:
       - name: Cache dependencies
         uses: actions/cache@v3
         with:
-          path: ~/.npm
+          path: |
+            ~/.npm
+            node_modules
           key: ${{ runner.os }}-node-${{ hashFiles('**/package-lock.json') }}
           restore-keys: |
             ${{ runner.os }}-node-
@@ -27,19 +29,37 @@ jobs:
       - name: Cache Next.js build
         uses: actions/cache@v3
         with:
-          path: ${{ github.workspace }}/.next/cache
+          path: |
+            ${{ github.workspace }}/.next/cache
+            ${{ github.workspace }}/out
           key: ${{ runner.os }}-nextjs-${{ hashFiles('**/package-lock.json') }}-${{ hashFiles('**/*.[jt]s', '**/*.[jt]sx') }}
           restore-keys: |
             ${{ runner.os }}-nextjs-${{ hashFiles('**/package-lock.json') }}-
+            ${{ runner.os }}-nextjs-
+            
+      - name: Cache TypeScript
+        uses: actions/cache@v3
+        with:
+          path: |
+            tsconfig.tsbuildinfo
+            .next/types
+          key: ${{ runner.os }}-tsc-${{ hashFiles('tsconfig.json', 'src/**/*.ts', 'src/**/*.tsx') }}
+          restore-keys: |
+            ${{ runner.os }}-tsc-
             
       - name: Install dependencies
-        run: npm ci
+        run: npm ci --prefer-offline --no-audit --no-fund
+        env:
+          NODE_OPTIONS: '--max-old-space-size=4096'
+          UV_THREADPOOL_SIZE: 16
         
       - name: Build application
         run: npm run build
         env:
           # Access YouTube API key from repository secrets
           YOUTUBE_API_KEY: ${{ secrets.YOUTUBE_API_KEY }}
+          NODE_OPTIONS: '--max-old-space-size=4096'
+          NEXT_TELEMETRY_DISABLED: 1
           
       - name: Deploy to S3 (if configured)
         run: |

tsconfig.json

@@ -1,6 +1,6 @@
 {
   "compilerOptions": {
-    "target": "ES2017",
+    "target": "ES2020",
     "lib": ["dom", "dom.iterable", "esnext"],
     "allowJs": true,
     "skipLibCheck": true,
@@ -13,6 +13,7 @@
     "isolatedModules": true,
     "jsx": "preserve",
     "incremental": true,
+    "tsBuildInfoFile": ".next/types/tsbuildinfo",
     "plugins": [
       {
         "name": "next"