placeholder workflow for branch testing

Author: half-ogre

.github/workflows/tests.yaml

@@ -0,0 +1,21 @@
+name: Tests                                                                                                                                                        
+                                                                                                                                                                     
+on:                                                                                                                                                                
+  push:                                                                                                                                                            
+    branches: [main]                                                                                                                                               
+  pull_request:                                                                                                                                                    
+    branches: [main]                                                                                                                                               
+                                                                                                                                                                   
+jobs:                                                                                                                                                              
+  test:                                                                                                                                                            
+    runs-on: ubuntu-latest                                                                                                                                         
+    steps:                                                                                                                                                         
+      - uses: actions/checkout@v4                                                                                                                                  
+                                                                                                                                                                   
+      - name: Set up Python                                                                                                                                        
+        uses: actions/setup-python@v5                                                                                                                              
+        with:                                                                                                                                                      
+          python-version: '3.12'                                                                                                                                   
+                                                                                                                                                                   
+      - name: Placeholder                                                                                                                                          
+        run: echo "Tests workflow placeholder - will be expanded"