📝 docs: add ADR 0024 for BDD test organization and isolation strategy

Updates .gitignore to ignore feature-specific config files

Aligns test organization with Godog best practices and community standards

adr/README.md

@@ -2,6 +2,35 @@
 
 This directory contains Architecture Decision Records (ADRs) for the dance-lessons-coach project.
 
+## Index of ADRs
+
+| Number | Title | Status |
+|--------|-------|--------|
+| 0001 | Go 1.26.1 Standard | ✅ Accepted |
+| 0002 | Chi Router | ✅ Accepted |
+| 0003 | Zerolog Logging | ✅ Accepted |
+| 0004 | Interface-Based Design | ✅ Accepted |
+| 0005 | Graceful Shutdown | ✅ Accepted |
+| 0006 | Configuration Management | ✅ Accepted |
+| 0007 | OpenTelemetry Integration | ✅ Accepted |
+| 0008 | BDD Testing | ✅ Accepted |
+| 0009 | Hybrid Testing Approach | ✅ Accepted |
+| 0010 | CI/CD Pipeline Design | ✅ Accepted |
+| 0011 | Trunk-Based Development | ✅ Accepted |
+| 0012 | Commit Message Conventions | ✅ Accepted |
+| 0013 | Version Management Lifecycle | ✅ Accepted |
+| 0014 | Swagger Documentation | ✅ Accepted |
+| 0015 | Rate Limiting Strategy | ✅ Accepted |
+| 0016 | Cache Invalidation Strategy | ✅ Accepted |
+| 0017 | JWT Secret Rotation | ✅ Accepted |
+| 0018 | Configuration Hot Reloading | ✅ Accepted |
+| 0019 | BDD Feature Structure | ✅ Accepted |
+| 0020 | Database Migration Strategy | ✅ Accepted |
+| 0021 | API Versioning Strategy | ✅ Accepted |
+| 0022 | Rate Limiting and Cache Strategy | ✅ Accepted |
+| 0023 | Config Hot Reloading | 🟡 Proposed |
+| 0024 | BDD Test Organization and Isolation | 🟡 Proposed |
+
 ## What is an ADR?
 
 An ADR is a document that captures an important architectural decision made along with its context and consequences.