Complete v0.6.0 documentation update and review

📚 Documentation Updates:
• Updated CHANGELOG.md with comprehensive v0.6.0 feature list
• Enhanced README.md with new TV processing endpoints and examples
• Updated SETUP.md with required Sonarr API key configuration
• Enhanced TESTING.md with v0.6.0 TV testing procedures
• Updated .env templates with proper Sonarr requirements

🔧 Configuration Updates:
• Mark SONARR_API_KEY as REQUIRED for v0.6.0+ Enhanced TV NFOs
• Updated version examples from 0.5.1 to 0.6.0
• Added JSON response examples for new TV endpoints
• Clarified URL-safe vs URL-encoded endpoint options

📋 Complete File Review:
• Verified all Python imports are consistent across modules
• Confirmed all typing imports (Dict, Any, List, Optional) are present
• Validated configuration templates match actual requirements
• Added comprehensive testing procedures for TV enhancements

✅ Ready for Production:
• All endpoints documented with examples
• Configuration requirements clearly specified
• Testing procedures comprehensive for troubleshooting
• Backward compatibility maintained throughout

README.md

@@ -232,7 +232,7 @@ curl "http://localhost:8080/debug/tmdb/tt1674782"
 ```json
 {
   "status": "healthy",
-  "version": "0.5.1", 
+  "version": "0.6.0", 
   "database_status": "healthy",
   "radarr_database": {"status": "healthy", "movies": 1500}
 }
@@ -264,6 +264,22 @@ curl "http://localhost:8080/debug/tmdb/tt1674782"
 }
 ```
 
+**TV Season Processing**:
+```json
+{
+  "status": "started",
+  "message": "Season scan started for Season 13"
+}
+```
+
+**TV Episode Processing**:
+```json
+{
+  "status": "started", 
+  "message": "Episode scan started for Chicago Fire (2012)-S13E21-The Bad Guy[WEBDL-1080p][AAC2.0][h264].mkv"
+}
+```
+
 ## 🎯 Date Selection Priority System
 
 NFOGuard uses a **comprehensive fallback hierarchy** to find the best possible date for each movie: