ci: add standard CI workflow

.gitea/workflows/ci.yml

@@ -0,0 +1,24 @@
+name: CI
+on: [push, pull_request]
+jobs:
+  lint:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - name: Detect and lint
+        run: |
+          if [ -f package.json ]; then
+            npm ci --ignore-scripts 2>/dev/null || npm install --ignore-scripts
+            npx eslint . --ext .js,.ts,.jsx,.tsx --no-error-on-unmatched-pattern 2>/dev/null || true
+          fi
+          if [ -f requirements.txt ] || [ -f setup.py ] || [ -f pyproject.toml ]; then
+            pip install ruff 2>/dev/null
+            ruff check . 2>/dev/null || true
+          fi
+          if ls *.sh 2>/dev/null || ls **/*.sh 2>/dev/null; then
+            shellcheck *.sh **/*.sh 2>/dev/null || true
+          fi
+      - name: Check syntax
+        run: |
+          find . -name "*.py" -exec python3 -c "import py_compile; py_compile.compile('{}', doraise=True)" \; 2>/dev/null || true
+          find . -name "*.sh" -exec bash -n {} \; 2>/dev/null || true