Release v1.1.1

Changed

• Comprehensive code quality improvements: 79% reduction in linter issues (114 → 24)
• Added proper error handling for all unchecked error returns (50 errcheck fixes)
• Added package documentation comments for all packages (15 packages)
• Improved code naming conventions and exported function documentation (33 revive fixes)
• Pre-allocated slices with known capacity for better performance (4 prealloc fixes)
• Fixed error string capitalization to follow Go conventions (3 staticcheck fixes)
• Renamed variables that redefine built-in identifiers (max → maxGenres, min → minInt)
• Added github.com/robfig/cron/v3 to allowed dependencies in golangci-lint config
• Renamed exported types to avoid stuttering (CooldownStats → Stats, MediaStats → Stats)
• Added constant block comments for MediaType and MediaSource enums

Fixed

• Fixed missing errors and strings imports in multiple packages
• Fixed context handling in scheduler and server shutdown
• Fixed ineffective assignment in history repository

Security

• Changed directory permissions from 0755 to 0750 for better security (gosec fix)