add Gitea Actions CI workflow

.gitea/workflows/ci.yml

@@ -0,0 +1,81 @@
+name: CI
+
+on:
+  push:
+    branches: [main, master]
+  pull_request:
+    branches: [main, master]
+
+jobs:
+  lint:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: gitea/checkout@v2
+
+      - name: Set up Python
+        uses: gitea/setup-python@v2
+        with:
+          python-version: "3.11"
+
+      - name: Install dependencies
+        run: |
+          python -m pip install --upgrade pip
+          pip install ruff mypy
+          pip install -e ".[dev]"
+
+      - name: Run ruff
+        run: ruff check .
+
+      - name: Run mypy
+        run: mypy youtube_tui/
+
+  test:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: gitea/checkout@v2
+
+      - name: Set up Python
+        uses: gitea/setup-python@v2
+        with:
+          python-version: "3.11"
+
+      - name: Install dependencies
+        run: |
+          python -m pip install --upgrade pip
+          pip install -e ".[dev]"
+          pip install -r requirements-api.txt
+
+      - name: Run pytest
+        run: python -m pytest tests/ web/server/tests/ -v --tb=short
+
+  docker-build:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: gitea/checkout@v2
+
+      - name: Build Docker image
+        run: |
+          docker build -t youtube-cli:test --no-cache .
+
+  security:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: gitea/checkout@v2
+
+      - name: Set up Python
+        uses: gitea/setup-python@v2
+        with:
+          python-version: "3.11"
+
+      - name: Run bandit (Python SAST)
+        run: |
+          pip install bandit
+          bandit -r youtube_cli/ youtube_tui/ web/server/ -ll
+
+  build-result:
+    needs: [lint, test, docker-build, security]
+    runs-on: ubuntu-latest
+    if: always()
+    steps:
+      - name: Summary
+        run: echo "All CI checks completed"