feat: add nightly branch workflow

docs/implementation/DNS_DETECTION_PHASE4_COMPLETE.md

@@ -20,6 +20,7 @@ Successfully implemented Phase 4 (DNS Provider Auto-Detection) from the DNS Futu
 **File:** `backend/internal/services/dns_detection_service.go`
 
 **Features:**
+
 - Nameserver pattern matching for 10+ major DNS providers
 - DNS lookup using Go's built-in `net.LookupNS()`
 - In-memory caching with 1-hour TTL (configurable)
@@ -30,6 +31,7 @@ Successfully implemented Phase 4 (DNS Provider Auto-Detection) from the DNS Futu
 - Confidence scoring (high/medium/low/none)
 
 **Built-in Provider Patterns:**
+
 - Cloudflare (`cloudflare.com`)
 - AWS Route 53 (`awsdns`)
 - DigitalOcean (`digitalocean.com`)
@@ -42,6 +44,7 @@ Successfully implemented Phase 4 (DNS Provider Auto-Detection) from the DNS Futu
 - DNSimple (`dnsimple.com`)
 
 **Detection Algorithm:**
+
 1. Extract base domain (remove wildcard prefix)
 2. Lookup NS records with 10-second timeout
 3. Match nameservers against pattern database
@@ -57,6 +60,7 @@ Successfully implemented Phase 4 (DNS Provider Auto-Detection) from the DNS Futu
 **File:** `backend/internal/api/handlers/dns_detection_handler.go`
 
 **Endpoints:**
+
 - `POST /api/v1/dns-providers/detect`
   - Request: `{"domain": "example.com"}`
   - Response: `DetectionResult` with provider type, nameservers, confidence, and suggested provider
@@ -64,6 +68,7 @@ Successfully implemented Phase 4 (DNS Provider Auto-Detection) from the DNS Futu
   - Returns list of all supported nameserver patterns
 
 **Response Structure:**
+
 ```go
 type DetectionResult struct {
     Domain            string              `json:"domain"`
@@ -81,6 +86,7 @@ type DetectionResult struct {
 **File:** `backend/internal/api/routes/routes.go`
 
 Added detection routes to the protected DNS providers group:
+
 - Detection endpoint properly integrated
 - Patterns endpoint for introspection
 - Both endpoints require authentication
@@ -88,6 +94,7 @@ Added detection routes to the protected DNS providers group:
 ### 4. Comprehensive Test Coverage
 
 **Service Tests:** `backend/internal/services/dns_detection_service_test.go`
+
 - ✅ 92.5% coverage
 - 13 test functions with 40+ sub-tests
 - Tests for all major functionality:
@@ -102,6 +109,7 @@ Added detection routes to the protected DNS providers group:
   - Pattern completeness validation
 
 **Handler Tests:** `backend/internal/api/handlers/dns_detection_handler_test.go`
+
 - ✅ 100% coverage
 - 10 test functions with 20+ sub-tests
 - Tests for all API scenarios:
@@ -128,6 +136,7 @@ Added detection routes to the protected DNS providers group:
 ## Integration Points
 
 ### Existing Systems
+
 - Integrated with DNS Provider Service for provider suggestion
 - Uses existing GORM database connection
 - Follows established handler/service patterns
@@ -135,7 +144,9 @@ Added detection routes to the protected DNS providers group:
 - Complies with authentication middleware
 
 ### Future Frontend Integration
+
 The API is ready for frontend consumption:
+
 ```typescript
 // Example usage in ProxyHostForm
 const { detectProvider, isDetecting } = useDNSDetection()
@@ -169,6 +180,7 @@ useEffect(() => {
 ## Error Handling
 
 The service handles all common error scenarios:
+
 - **Invalid Domain:** Returns friendly error message
 - **DNS Lookup Failure:** Caches error result for 5 minutes
 - **Network Timeout:** 10-second limit prevents hanging requests
@@ -193,17 +205,20 @@ The service handles all common error scenarios:
 ## Testing Strategy
 
 ### Unit Tests
+
 - All business logic thoroughly tested
 - Edge cases covered (empty domains, wildcards, etc.)
 - Error paths validated
 - Mock-based handler tests prevent DNS calls in tests
 
 ### Integration Tests
+
 - Service integrates with GORM database
 - Routes properly registered and authenticated
 - Handler correctly calls service methods
 
 ### Performance Tests
+
 - Concurrent cache access verified
 - Cache expiration timing tested
 - No memory leaks detected
@@ -213,6 +228,7 @@ The service handles all common error scenarios:
 ## Example API Usage
 
 ### Detect Provider
+
 ```bash
 POST /api/v1/dns-providers/detect
 Content-Type: application/json
@@ -224,6 +240,7 @@ Authorization: Bearer <token>
 ```
 
 **Response (Success):**
+
 ```json
 {
   "domain": "example.com",
@@ -246,6 +263,7 @@ Authorization: Bearer <token>
 ```
 
 **Response (Not Detected):**
+
 ```json
 {
   "domain": "custom-dns.com",
@@ -259,6 +277,7 @@ Authorization: Bearer <token>
 ```
 
 **Response (DNS Error):**
+
 ```json
 {
   "domain": "nonexistent.domain",
@@ -270,12 +289,14 @@ Authorization: Bearer <token>
 ```
 
 ### Get Detection Patterns
+
 ```bash
 GET /api/v1/dns-providers/detection-patterns
 Authorization: Bearer <token>
 ```
 
 **Response:**
+
 ```json
 {
   "patterns": [
@@ -320,6 +341,7 @@ Authorization: Bearer <token>
 ## Files Created/Modified
 
 ### Created
+
 1. `backend/internal/services/dns_detection_service.go` (373 lines)
 2. `backend/internal/services/dns_detection_service_test.go` (518 lines)
 3. `backend/internal/api/handlers/dns_detection_handler.go` (78 lines)
@@ -327,6 +349,7 @@ Authorization: Bearer <token>
 5. `docs/implementation/DNS_DETECTION_PHASE4_COMPLETE.md` (this file)
 
 ### Modified
+
 1. `backend/internal/api/routes/routes.go` (added 4 lines for detection routes)
 
 **Total Lines of Code:** ~1,473 lines (including tests and documentation)
@@ -366,6 +389,7 @@ While Phase 4 is complete, future enhancements could include:
 ## Conclusion
 
 Phase 4 (DNS Provider Auto-Detection) has been successfully implemented with:
+
 - ✅ All core features working as specified
 - ✅ Comprehensive test coverage (>90%)
 - ✅ Production-ready code quality