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feat: Add runtime metrics for HTTP requests and database queries (v0.1.0)
- Add RuntimeCollector class for tracking request lifecycle metrics
- Add wordpress_http_requests_total counter (method, status, endpoint)
- Add wordpress_http_request_duration_seconds histogram
- Add wordpress_db_queries_total counter (endpoint)
- Add wordpress_db_query_duration_seconds histogram (requires SAVEQUERIES)
- Update Collector to expose stored runtime metrics
- Add new settings options for enabling/disabling runtime metrics
- Create translation files (.pot, .po, .mo) for internationalization
- Update documentation and changelog

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
2026-02-02 14:24:05 +01:00

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# Changelog
All notable changes to this project will be documented in this file.
The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
## [0.1.0] - 2026-02-02
### Added
- HTTP request metrics:
- `wordpress_http_requests_total` - Counter of HTTP requests by method, status code, and endpoint
- `wordpress_http_request_duration_seconds` - Histogram of request durations
- Database query metrics:
- `wordpress_db_queries_total` - Counter of database queries by endpoint
- `wordpress_db_query_duration_seconds` - Histogram of query durations (requires SAVEQUERIES)
- RuntimeCollector class for collecting metrics during WordPress request lifecycle
- New settings options for enabling/disabling runtime metrics
- Translation files (.pot, .po, .mo) for German (Switzerland)
### Changed
- Metrics are now categorized into static metrics (users, posts, etc.) and runtime metrics (HTTP, database)
- Runtime metrics only collected when explicitly enabled and license is valid
## [0.0.2] - 2026-02-01
### Fixed
- Fixed composer.json dependency version constraint for wc-licensed-product-client (^0.2.2 instead of dev-main)
- Changed minimum-stability back to stable
## [0.0.1] - 2026-02-01
### Added
- Initial plugin structure and bootstrap
- Main plugin class with singleton pattern
- License management integration with wc-licensed-product-client
- Prometheus metrics collector with default WordPress metrics:
- `wordpress_info` - WordPress installation information
- `wordpress_users_total` - Total users by role
- `wordpress_posts_total` - Total posts by type and status
- `wordpress_comments_total` - Total comments by status
- `wordpress_plugins_total` - Total plugins by status
- Authenticated `/metrics` endpoint with Bearer token
- Admin settings page under Settings > Metrics
- Extensibility via `wp_prometheus_collect_metrics` action hook
- Gitea CI/CD pipeline for automated releases
- Comprehensive documentation (README.md, PLAN.md, CLAUDE.md)
### Security
- Bearer token authentication for metrics endpoint
- Nonce verification for all AJAX requests
- Capability checks for admin operations
- Input sanitization and output escaping