🧪 test: fix BDD step registration and update CI/CD workflow

- Fix step pattern escaping in pkg/bdd/steps/steps.go:80
- Update CI/CD workflow to use run-bdd-tests.sh script
- Enhance run-bdd-tests.sh for both local and CI environments
- Add strict validation for undefined/pending/skipped steps
- Update BDD testing documentation with pattern requirements

The CI/CD pipeline now properly validates BDD tests and fails on any
undefined, pending, or skipped steps. All 22 BDD scenarios are passing
with correct step pattern registration.

.vibe/skills/bdd-testing/references/DEBUGGING.md

@@ -15,7 +15,12 @@ Feature: Greet Service
     Then the response should be "..."          # ??? UNDEFINED STEP
 ```
 
-**Root Cause:** Step patterns don't match Godog's exact expectations.
+**Root Cause:** Step patterns don't match Godog's exact expectations. Godog is very particular about regex escaping.
+
+**Common Pattern Issues:**
+- `\"` vs `\\"` (single vs double escaping)
+- Exact quote handling in JSON patterns
+- Parameter capture group syntax
 
 **Debugging Steps:**
 
@@ -28,25 +33,30 @@ Feature: Greet Service
    ```
    You can implement step definitions for the undefined steps with these snippets:
    
-   func theServerIsRunning() error {
+   func theResponseShouldBe(arg1, arg2 string) error {
        return godog.ErrPending
    }
    
-   func iRequestTheDefaultGreeting() error {
-       return godog.ErrPending
+   func InitializeScenario(ctx *godog.ScenarioContext) {
+       ctx.Step(`^the response should be "{\\"([^"]*)\\":\\"([^"]*)\\"}"$`, theResponseShouldBe)
    }
    ```
 
 3. **Compare with your implementation:**
    ```go
-   // ❌ Wrong pattern
-   ctx.Step(`^the server is running$`, sc.theServerIsRunning)
+   // ❌ Wrong pattern (single escaping)
+   ctx.Step(`^the response should be "{\"([^"]*)\":\"([^"]*)\"}"$`, sc.commonSteps.theResponseShouldBe)
    
-   // ✅ Correct pattern (matches Godog's suggestion)
-   ctx.Step(`^the server is running$`, sc.theServerIsRunning)
+   // ✅ Correct pattern (double escaping - matches Godog's suggestion)
+   ctx.Step(`^the response should be "{\\"([^"]*)\\":\\"([^"]*)\\"}"$`, sc.commonSteps.theResponseShouldBe)
    ```
 
-**Solution:** Use Godog's EXACT regex patterns.
+**Key Insight:** Godog expects `\\"` (four backslashes + quote) for escaped quotes in JSON patterns, not `\"` (two backslashes + quote).
+
+**Solution:** Use Godog's EXACT regex patterns, paying special attention to:
+- JSON escaping: `\\"` not `\"`
+- Parameter names: Use `arg1, arg2` as suggested
+- Capture groups: Match Godog's exact regex syntax
 
 ### 2. JSON Comparison Failures