Fix GitHub Actions workflow configuration

- Remove deprecated --no-suggest flag from composer install
- Simplify PHPStan step: remove unnecessary conditional logic and || true
- Ensure PHPStan failures properly fail the CI build
- Clean up workflow to match actual project structure
🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude Sonnet 4.5 <[email protected]>

Author: eypsilon

.github/workflows/main.yml

@@ -32,16 +32,10 @@ jobs:
             ${{ runner.os }}-composer-
 
       - name: Install dependencies
-        run: composer install --prefer-dist --no-progress --no-suggest --no-interaction
+        run: composer install --prefer-dist --no-progress --no-interaction
 
       - name: Run PHPStan (level 8)
-        # adjust path or config if needed
-        run: |
-          if [ -f phpstan.neon ]; then
-            ./vendor/bin/phpstan analyse --configuration=phpstan.neon --level=8 src tests || true
-          else
-            ./vendor/bin/phpstan analyse --level=8 src tests || true
-          fi
+        run: ./vendor/bin/phpstan analyse --level=8 src/
 
       - name: Run tests
         # try PHPUnit first; adjust if you use Pest or other runner