✨ Add Movie Service missing endpoints and models

[adamayoung]

Summary

Implement Plan 1: Movie Service Additions - adds 9 missing endpoints to achieve 100% API coverage for Movie Service.

Changes

New Models:

• ✨ Created AccountStates - User rating, favorite, and watchlist state
• ✨ Created AlternativeTitle - Alternative titles by country
• ✨ Created Translation<T> - Generic translation model with movie-specific data
• ✨ Created Change models - Change tracking for sync/caching
• ✨ Created AnyCodable - Type-erased codable for dynamic JSON values

New Service Methods (9 endpoints):

• ✨ accountStates(forMovie:session:) - Get user interaction state
• ✨ addRating(_:toMovie:session:) - Add movie rating (0.5-10.0, increments of 0.5)
• ✨ deleteRating(forMovie:session:) - Delete movie rating
• ✨ alternativeTitles(forMovie:country:language:) - Get alternative titles
• ✨ translations(forMovie:) - Get movie translations
• ✨ lists(forMovie:page:language:) - Get lists containing movie
• ✨ changes(forMovie:startDate:endDate:page:) - Get movie change history
• ✨ latest() - Get latest movie added to TMDb
• ✨ changes(startDate:endDate:page:) - Get changed movie IDs

Request Classes:

• ✨ Created 9 new request classes following existing patterns
• 🔧 Extended APIRequestQueryItem.Name with country, startDate, endDate

Tests:

• ✅ Added 4 model test files with JSON fixtures
• ✅ All 1530 unit tests pass
• ✅ Uses #require() instead of force unwrapping

Documentation:

• 📝 Updated MovieService.md with 3 new topic groups
• 📝 Added 11 new model types to TMDb.md
• 📚 Documentation builds without warnings

Benefits

• User Engagement: Users can rate movies and manage ratings
• Interaction State: Apps can show favorite/watchlist status
• Internationalization: Complete alternative title and translation support
• Cache Sync: Change tracking enables efficient synchronization
• Complete Coverage: 100% API coverage for Movie Service

API Coverage Improvement

• Before: 15/24 endpoints (63%)
• After: 24/24 endpoints (100%) ✅

Testing

• ✅ All 1530 unit tests pass
• ✅ Comprehensive model tests with JSON fixtures
• ✅ Documentation builds without warnings
• ✅ Code formatted and linted

🤖 Generated with Claude Code

[codecov]

Codecov Report

❌ Patch coverage is 84.74576% with 45 lines in your changes missing coverage. Please review.
✅ Project coverage is 98.32%. Comparing base (89bc29f) to head (d6b3157).
✅ All tests successful. No failed tests found.

Files with missing lines	Patch %	Lines
Sources/TMDb/Domain/Models/Change.swift	59.82%	45 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #259      +/-   ##
==========================================
- Coverage   99.29%   98.32%   -0.98%     
==========================================
  Files         260      274      +14     
  Lines        4123     4417     +294     
==========================================
+ Hits         4094     4343     +249     
- Misses         29       74      +45     

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