📝 docs: add ADR for staged-only Git hooks formatting

- Add ADR-0012 documenting the decision to format only staged Go files
- Update ADR README.md with new entry
- Document rationale, alternatives, and verification results
- Include future considerations for monitoring and CI/CD integration

Generated by Mistral Vibe.
Co-Authored-By: Mistral Vibe <vibe@mistral.ai>

pkg/bdd/steps/steps.go

@@ -48,14 +48,14 @@ func (sc *StepContext) iRequestTheHealthEndpoint() error {
 func (sc *StepContext) theResponseShouldBe(arg1, arg2 string) error {
 	// The regex captures the full JSON from the feature file, including quotes
 	// We need to extract just the key and value without the surrounding quotes and backslashes
-	
+
 	// Remove the surrounding quotes and backslashes
 	cleanArg1 := strings.Trim(arg1, `"\`)
 	cleanArg2 := strings.Trim(arg2, `"\`)
-	
+
 	// Build the expected JSON string
 	expected := fmt.Sprintf(`{"%s":"%s"}`, cleanArg1, cleanArg2)
-	
+
 	return sc.client.ExpectResponseBody(expected)
 }
 
@@ -70,7 +70,7 @@ func (sc *StepContext) theServerIsRunningWithV2Enabled() error {
 	if err := sc.client.Request("GET", "/api/ready", nil); err != nil {
 		return err
 	}
-	
+
 	// Check if v2 endpoint is available (should return 405 Method Not Allowed for GET, which means endpoint exists)
 	// If v2 is disabled, this will return 404
 	resp, err := sc.client.CustomRequest("GET", "/api/v2/greet", nil)
@@ -78,13 +78,13 @@ func (sc *StepContext) theServerIsRunningWithV2Enabled() error {
 		return err
 	}
 	defer resp.Body.Close()
-	
+
 	// If we get 405, v2 is enabled (endpoint exists but doesn't allow GET)
 	// If we get 404, v2 is disabled
 	if resp.StatusCode == 404 {
 		return fmt.Errorf("v2 endpoint not available - v2 feature flag not enabled")
 	}
-	
+
 	return nil
 }