feat(ci): add lint pipeline for PHP, CSS and HTML (#44)

.gitea/workflows/lint.yml

@@ -0,0 +1,66 @@
+name: Lint
+
+on:
+  push:
+    branches: [main]
+  pull_request:
+    branches: [main]
+
+jobs:
+  lint-php:
+    name: PHP Syntax Check
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: Install PHP
+        run: |
+          apt-get update -qq && apt-get install -y -qq php-cli > /dev/null 2>&1
+
+      - name: PHP Lint
+        run: |
+          errors=0
+          while IFS= read -r file; do
+            if ! php -l "$file" > /dev/null 2>&1; then
+              echo "❌ Syntax error in $file"
+              php -l "$file"
+              errors=1
+            fi
+          done < <(find . -name "*.php" -not -path "./vendor/*")
+          if [ "$errors" -eq 1 ]; then
+            echo "::error::PHP lint check failed"
+            exit 1
+          fi
+          echo "✅ All PHP files pass syntax check"
+
+  lint-css:
+    name: CSS Lint (stylelint)
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: Install Node.js & stylelint
+        run: |
+          apt-get update -qq && apt-get install -y -qq npm nodejs > /dev/null 2>&1
+          npm install -g stylelint stylelint-config-standard stylelint-prettier > /dev/null 2>&1
+
+      - name: CSS Lint
+        run: |
+          npx stylelint "**/*.css" --config .stylelintrc.json --allow-empty-input
+          echo "✅ All CSS files pass lint"
+
+  lint-html:
+    name: HTML Lint (htmlhint)
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: Install Node.js & htmlhint
+        run: |
+          apt-get update -qq && apt-get install -y -qq npm nodejs > /dev/null 2>&1
+          npm install -g htmlhint > /dev/null 2>&1
+
+      - name: HTML Lint
+        run: |
+          npx htmlhint "**/*.html" --config .htmlhintrc
+          echo "✅ All HTML files pass lint"