- Improved the `RepairSnippetWithBodies` function to streamline snippet rebuilding logic and reduce redundancy.
- Introduced new utility functions for stripping CSS noise and decoding HTML entities in snippets.
- Enhanced boilerplate detection to better identify low-quality snippets, including legal footers and view-in-browser prompts.
- Added comprehensive tests for new functionality and edge cases in snippet processing.
- Updated the WebSocket hub to replace the insecure `user_id` query parameter with an authentication token for secure connections.
- Introduced typed events for mail operations (created, updated, deleted) to streamline event handling.
- Implemented heartbeat functionality (ping/pong) to maintain connection health.
- Enhanced client reconnection logic and delta replay for improved user experience.
- Added limits on connections per user/session to prevent abuse and ensure stability.
- Added a new endpoint for simulating rules based on sample messages, allowing users to test rule conditions and actions.
- Enhanced webhook management with versioning, preview capabilities, and improved validation for webhook requests.
- Updated service interfaces to support new functionalities, including max retries for webhooks and signing secrets.
- Implemented observability metrics for webhook retries and dead-letter tracking, improving error handling and monitoring.
- Enhanced unit tests to cover new simulation and webhook features, ensuring robust functionality and validation.
- Added new API endpoints for sending, rescheduling, and canceling scheduled outbox messages.
- Implemented outbox processing logic to handle attachments and manage message statuses.
- Introduced a dead-letter strategy for failed outbox messages, enhancing reliability.
- Updated database schema to support new outbox statuses and dead-letter entries.
- Enhanced unit tests for outbox functionalities, ensuring robust error handling and validation.
- Improved attachment handling in the outbox processor to support inline and regular attachments.
- Introduced a new sync pipeline for IMAP that integrates a rules engine and webhook execution.
- Enhanced the `SyncWorker` to support attachment management and folder synchronization.
- Added functionality to detect special folder types (Sent, Drafts, Trash, Archive, Spam) during sync.
- Implemented a database schema for tracking rule executions and their outcomes.
- Created unit tests for the new rules engine and webhook execution logic.
- Updated migration scripts to accommodate new database structures for rule executions and folder states.
- Enhanced error handling and logging throughout the sync process for better observability.
- Added rate limiting for outbound email sends to prevent abuse, implemented in `internal/api/mail/sendguard`.
- Introduced idempotency key support for email sending to avoid duplicate submissions.
- Enhanced attachment handling with new limits and validation in `internal/api/mail/limits`.
- Updated outbox processing to include retry logic and circuit breaker for SMTP failures.
- Improved HTML sanitization for email content to enhance security.
- Added unit tests for new features, ensuring robust functionality and error handling.
- Updated configuration options in `.env.example` for new mail settings.
- Introduced new functionality for managing email attachments and drafts in the mail API.
- Added handlers for listing, uploading, and downloading message attachments in `internal/api/mail/handlers_attachments.go`.
- Implemented draft management endpoints for creating, updating, and deleting drafts in `internal/api/mail/handlers_drafts.go`.
- Created new service methods for handling draft and attachment operations in `internal/api/mail/drafts.go` and `internal/api/mail/storage.go`.
- Added validation and error handling for draft and attachment operations.
- Included unit tests for draft and folder functionalities in `internal/api/mail/drafts_test.go` and `internal/api/mail/folders_test.go`.
- Updated API routes to support new draft and attachment features, enhancing overall mail management capabilities.
- Created a CI workflow in `.github/workflows/ci.yml` to run Go tests and verify database migrations.
- Added unit tests for the mail API in `internal/api/mail/handlers_test.go`, covering message listing, retrieval, sending, and label updating.
- Introduced a service interface for the mail handler in `internal/api/mail/service_iface.go`.
- Updated mail handler initialization to accept a service API in `internal/api/mail/handlers.go`.
- Implemented test authentication middleware for testing purposes in `internal/api/middleware/testauth.go`.
- Added various test cases for IMAP and SMTP functionalities, ensuring robust error handling and validation.
- Enhanced project documentation with checklist updates for testing and CI integration.
- Introduced health checks for Nextcloud, Immich, and Jitsi in the .env.example file.
- Implemented Prometheus metrics for HTTP requests, IMAP sync, outbox processing, and webhook executions.
- Added Grafana configuration files for dashboards and data sources.
- Updated Docker Compose to include Prometheus and Grafana services.
- Enhanced logging middleware to include request IDs and metrics tracking.
- Created health checker for monitoring database and external service statuses.
- Updated README with observability setup instructions and service URLs.
