Release v1.9.0: Add video-comparer skill and enhance transcript-fixer

## New Skill: video-comparer v1.0.0
- Compare original and compressed videos with interactive HTML reports
- Calculate quality metrics (PSNR, SSIM) for compression analysis
- Generate frame-by-frame visual comparisons (slider, side-by-side, grid)
- Extract video metadata (codec, resolution, bitrate, duration)
- Multi-platform FFmpeg support with security features

## transcript-fixer Enhancements
- Add async AI processor for parallel processing
- Add connection pool management for database operations
- Add concurrency manager and rate limiter
- Add audit log retention and database migrations
- Add health check and metrics monitoring
- Add comprehensive test suite (8 new test files)
- Enhance security with domain and path validators

## Marketplace Updates
- Update marketplace version from 1.8.0 to 1.9.0
- Update skills count from 15 to 16
- Update documentation (README.md, CLAUDE.md, CHANGELOG.md)

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <noreply@anthropic.com>

transcript-fixer/scripts/cli/__init__.py

@@ -14,6 +14,11 @@ from .commands import (
     cmd_review_learned,
     cmd_approve,
     cmd_validate,
+    cmd_health,
+    cmd_metrics,
+    cmd_config,
+    cmd_migration,
+    cmd_audit_retention,
 )
 from .argument_parser import create_argument_parser
 
@@ -25,5 +30,10 @@ __all__ = [
     'cmd_review_learned',
     'cmd_approve',
     'cmd_validate',
+    'cmd_health',
+    'cmd_metrics',
+    'cmd_config',
+    'cmd_migration',
+    'cmd_audit_retention',
     'create_argument_parser',
 ]