feature: update regex to increase matching pattern

[nullable-eth]

🔍 Enhance TMDb ID Detection with Flexible Regex Pattern

Summary

Improves the TMDb ID extraction regex to support a much wider variety of file and folder naming patterns, making Labelarr compatible with more diverse media library setups.

What Changed

• Enhanced regex pattern for ExtractTMDbIDFromPath() function
• Expanded pattern matching to support various separators, brackets, and formatting styles
• Added comprehensive test suite with 25+ test cases covering real-world scenarios

New Supported Patterns

Direct Concatenation:

• tmdb603, TMDB27205, Tmdb19995

With Separators:

• tmdb:157336, tmdb-155, tmdb_680, tmdb=550, tmdb 278

With Brackets/Braces:

• {tmdb634}, [tmdb-13], (tmdb:238), {tmdb=103}, (tmdb 289)

Complex Real-World Examples:

• /movies/The Matrix (1999) [1080p] {tmdb-603} [x264]/file.mkv
• /movies/Inception (2010) {tmdb-27205} [Bluray-1080p][x264][DTS 5.1]-GROUP/file.mkv

Benefits

• 🎯 Better compatibility with Radarr/Sonarr naming schemes
• 📁 Flexible file organization - works with various bracket/separator preferences
• 🔄 Backward compatibility - all existing patterns still work
• 🛡️ Robust edge case handling - prevents false matches
• ⚡ Performance tested - includes benchmark tests

Testing

• 25+ test cases covering supported and unsupported patterns
• Edge case validation for boundary conditions
• Benchmark tests to ensure regex performance
• Real-world examples from actual media libraries

Breaking Changes

None - this is a backward-compatible enhancement that expands matching capabilities.

---

Fixes: Improves TMDb ID detection for users with diverse naming conventions
Related: Addresses compatibility issues with various media management tools