# 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/1.1.0/),
and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).

## [Unreleased]
### Added
- Added transparent PyPI proxy implementing PEP 503 Simple API (#108)
  - `GET /pypi/simple/` - package index (proxied from upstream)
  - `GET /pypi/simple/{package}/` - version list with rewritten download links
  - `GET /pypi/simple/{package}/{filename}` - download with automatic caching
  - Allows `pip install --index-url https://orchard.../pypi/simple/ <package>`
  - Artifacts cached on first access through configured upstream sources
- Added `POST /api/v1/cache/resolve` endpoint to cache packages by coordinates instead of URL (#108)

### Changed
- Upstream sources table text is now centered under column headers (#108)
- ENV badge now appears inline with source name instead of separate column (#108)
- Test and Edit buttons now have more prominent button styling (#108)
- Reduced footer padding for cleaner layout (#108)

### Fixed
- Fixed purge_seed_data crash when deleting access permissions - was comparing UUID to VARCHAR column (#107)

### Changed
- Upstream source connectivity test no longer follows redirects, fixing "Exceeded maximum allowed redirects" error with Artifactory proxies (#107)
- Test runs automatically after saving a new or updated upstream source (#107)
- Test status now shows as colored dots (green=success, red=error) instead of text badges (#107)
- Clicking red dot shows error details in a modal (#107)
- Source name column no longer wraps text for better table layout (#107)
- Renamed "Cache Management" page to "Upstream Sources" (#107)
- Moved Delete button from table row to edit modal for cleaner table layout (#107)

### Removed
- Removed `is_public` field from upstream sources - all sources are now treated as internal/private (#107)
- Removed `allow_public_internet` (air-gap mode) setting from cache settings - not needed for enterprise proxy use case (#107)
- Removed seeding of public registry URLs (npm-public, pypi-public, maven-central, docker-hub) (#107)
- Removed "Public" badge and checkbox from upstream sources UI (#107)
- Removed "Allow Public Internet" toggle from cache settings UI (#107)
- Removed "Global Settings" section from cache management UI - auto-create system projects is always enabled (#107)
- Removed unused CacheSettings frontend types and API functions (#107)

### Added
- Added `ORCHARD_PURGE_SEED_DATA` environment variable support to stage helm values to remove seed data from long-running deployments (#107)
- Added frontend system projects visual distinction (#105)
  - "Cache" badge for system projects in project list
  - "System Cache" badge on project detail page
  - Added `is_system` field to Project type
- Added frontend admin page for upstream sources and cache settings (#75)
  - New `/admin/cache` page accessible from user menu (admin only)
  - Upstream sources table with create/edit/delete/test connectivity
  - Cache settings section with air-gap mode and auto-create system projects toggles
  - Visual indicators for env-defined sources (locked, cannot be modified)
  - Environment variable override badges when settings are overridden
  - API client functions for all cache admin operations
- Added environment variable overrides for cache configuration (#74)
  - `ORCHARD_CACHE_ALLOW_PUBLIC_INTERNET` - Override allow_public_internet (air-gap mode)
  - `ORCHARD_CACHE_AUTO_CREATE_SYSTEM_PROJECTS` - Override auto_create_system_projects
  - `ORCHARD_UPSTREAM__{NAME}__*` - Define upstream sources via env vars
  - Env-defined sources appear in API with `source: "env"` marker
  - Env-defined sources cannot be modified/deleted via API (400 error)
  - Cache settings response includes `*_env_override` fields when overridden
  - 7 unit tests for env var parsing and configuration
- Added Global Cache Settings Admin API (#73)
  - `GET /api/v1/admin/cache-settings` - Retrieve current cache settings
  - `PUT /api/v1/admin/cache-settings` - Update cache settings (partial updates)
  - Admin-only access with audit logging
  - Controls `allow_public_internet` (air-gap mode) and `auto_create_system_projects`
  - 7 integration tests for settings management
- Added Upstream Sources Admin API for managing cache sources (#72)
  - `GET /api/v1/admin/upstream-sources` - List sources with filtering
  - `POST /api/v1/admin/upstream-sources` - Create source with auth configuration
  - `GET /api/v1/admin/upstream-sources/{id}` - Get source details
  - `PUT /api/v1/admin/upstream-sources/{id}` - Update source (partial updates)
  - `DELETE /api/v1/admin/upstream-sources/{id}` - Delete source
  - `POST /api/v1/admin/upstream-sources/{id}/test` - Test connectivity
  - Admin-only access with audit logging
  - Credentials never exposed (only has_password/has_headers flags)
  - 13 integration tests for all CRUD operations
- Added system project restrictions and management (#71)
  - System projects (`_npm`, `_pypi`, etc.) cannot be deleted (returns 403)
  - System projects cannot be made private (must remain public)
  - `GET /api/v1/system-projects` endpoint to list all system cache projects
  - 5 integration tests for system project restrictions
- Added Cache API endpoint for fetching and storing artifacts from upstream URLs (#70)
  - `POST /api/v1/cache` endpoint to cache artifacts from upstream registries
  - URL parsing helpers to extract package name/version from npm, PyPI, Maven URLs
  - Automatic system project creation (`_npm`, `_pypi`, `_maven`, etc.)
  - URL-to-artifact provenance tracking via `cached_urls` table
  - Optional user project cross-referencing for custom organization
  - Cache hit returns existing artifact without re-fetching
  - Air-gap mode enforcement (blocks public URLs when disabled)
  - Hash verification for downloaded artifacts
  - 21 unit tests for URL parsing and cache endpoint
- Added HTTP client for fetching artifacts from upstream sources (#69)
  - `UpstreamClient` class in `backend/app/upstream.py` with streaming downloads
  - SHA256 hash computation while streaming (doesn't load large files into memory)
  - Auth support: none, basic auth, bearer token, API key (custom headers)
  - URL-to-source matching by URL prefix with priority ordering
  - Configuration options: timeouts, retries with exponential backoff, redirect limits, max file size
  - Air-gap mode enforcement via `allow_public_internet` setting
  - Response header capture for provenance tracking
  - Proper error handling with custom exception types
  - Connection test method for upstream source validation
  - 33 unit tests for client functionality
- Added upstream artifact caching schema for hermetic builds (#68)
  - `upstream_sources` table for configuring upstream registries (npm, PyPI, Maven, etc.)
  - `cache_settings` table for global settings including air-gap mode
  - `cached_urls` table for URL-to-artifact provenance tracking
  - `is_system` column on projects for system cache projects (_npm, _pypi, etc.)
  - Support for multiple auth types: none, basic auth, bearer token, API key
  - Fernet encryption for credentials using `ORCHARD_CACHE_ENCRYPTION_KEY`
  - Default upstream sources seeded (npm-public, pypi-public, maven-central, docker-hub) - disabled by default
  - Migration `010_upstream_caching.sql`
- Added team-based multi-tenancy for organizing projects and collaboration (#88-#104)
  - Teams serve as organizational containers for projects
  - Users can belong to multiple teams with different roles (owner, admin, member)
  - Projects can optionally belong to a team
- Added database schema for teams (#88):
  - `teams` table with id, name, slug, description, settings, timestamps
  - `team_memberships` table mapping users to teams with roles
  - `team_id` column on projects table for team association
  - Migrations `009_teams.sql` and `009b_migrate_projects.sql`
- Added Team and TeamMembership ORM models with relationships (#89)
- Added TeamAuthorizationService for team-level access control (#90):
  - Team owner/admin gets admin access to all team projects
  - Team member gets read access to team projects (upgradeable by explicit permission)
  - Role hierarchy: owner > admin > member
- Added Team API endpoints (#92, #93, #94, #95):
  - `GET /api/v1/teams` - List teams user belongs to (paginated)
  - `POST /api/v1/teams` - Create team (creator becomes owner)
  - `GET /api/v1/teams/{slug}` - Get team details
  - `PUT /api/v1/teams/{slug}` - Update team (requires admin)
  - `DELETE /api/v1/teams/{slug}` - Delete team (requires owner)
  - `GET /api/v1/teams/{slug}/members` - List team members
  - `POST /api/v1/teams/{slug}/members` - Add member (requires admin)
  - `PUT /api/v1/teams/{slug}/members/{username}` - Update member role
  - `DELETE /api/v1/teams/{slug}/members/{username}` - Remove member
  - `GET /api/v1/teams/{slug}/projects` - List team projects (paginated)
- Updated project creation to support optional team assignment (#95)
- Updated project responses to include team info (team_id, team_slug, team_name)
- Added frontend team management (#97-#104):
  - TeamContext provider for managing current team selection
  - TeamSelector dropdown component (persists selection in localStorage)
  - Teams list page at `/teams`
  - Team dashboard page at `/teams/{slug}` with inline project creation
  - Team settings page at `/teams/{slug}/settings`
  - Team members page at `/teams/{slug}/members`
  - Teams navigation link in header (authenticated users only)
- Updated seed data to create a "Demo Team" and assign all seed projects to it
- Added TypeScript types and API client functions for teams
- Access management now shows team-based permissions alongside explicit permissions
  - Team-based access displayed as read-only with "Source" column indicating origin
  - Team members with access show team slug and role
- Added integration tests for team CRUD, membership, and project operations
- Redesigned teams portal with modern card-based layout
  - Card grid view with team avatar, name, slug, role badge, and stats
  - Stats bar showing total teams, owned teams, and total projects
  - Search functionality for filtering teams (appears when >3 teams)
  - Empty states for no teams and no search results
- Added user autocomplete component for team member invitations
  - `GET /api/v1/users/search` endpoint for username prefix search
  - Dropdown shows matching users as you type
  - Keyboard navigation support (arrow keys, enter, escape)
  - Debounced search to reduce API calls
- Added unit tests for TeamAuthorizationService
- Added `ORCHARD_ADMIN_PASSWORD` environment variable to configure initial admin password (#87)
  - When set, admin user is created with the specified password (no password change required)
  - When not set, defaults to `changeme123` and requires password change on first login
- Added Helm chart support for admin password via multiple sources (#87):
  - `orchard.auth.adminPassword` - plain value (creates K8s secret)
  - `orchard.auth.existingSecret` - reference existing K8s secret
  - `orchard.auth.secretsManager` - AWS Secrets Manager integration
- Added `.env.example` template for local development (#87)
- Added `.env` file support in docker-compose.local.yml (#87)
- Added Project Settings page accessible to project admins (#65)
  - General settings section for editing description and visibility
  - Access Management section (moved from project page)
  - Danger Zone section with inline delete confirmation requiring project name
  - Settings button (gear icon) on project page header for admins
- Added artifact dependency management system (#76, #77, #78, #79, #80, #81)
  - `artifact_dependencies` table with version/tag constraints and check constraints
  - `ArtifactDependency` SQLAlchemy model with indexes for fast lookups
  - Ensure file parsing (`orchard.ensure` YAML format) during artifact upload
  - Circular dependency detection at upload time (rejected with 400)
  - Dependency conflict detection at resolution time (409 with conflict details)
- Added dependency API endpoints (#78, #79):
  - `GET /api/v1/artifact/{artifact_id}/dependencies` - Get dependencies by artifact ID
  - `GET /api/v1/project/{project}/{package}/+/{ref}/dependencies` - Get dependencies by ref
  - `GET /api/v1/project/{project}/{package}/reverse-dependencies` - Get reverse dependencies (paginated)
  - `GET /api/v1/project/{project}/{package}/+/{ref}/resolve` - Resolve full dependency tree
- Added dependency resolution with topological sorting (#79)
  - Returns flat list of all artifacts needed in dependency order
  - Includes download URLs, sizes, and version info for each artifact
- Added frontend dependency visualization (#84, #85, #86):
  - Dependencies section on package page showing direct dependencies for selected tag
  - Tag/version selector to switch between artifacts
  - "Used By" section showing reverse dependencies with pagination
  - Interactive dependency graph modal with:
    - Tree visualization with collapsible nodes
    - Zoom (mouse wheel + buttons) and pan (click-drag)
    - Click to navigate to package
    - Hover tooltip with package details
    - Error display for circular dependencies and conflicts
- Added migration `008_artifact_dependencies.sql` for dependency schema
- Added `dependencies.py` module with parsing, validation, and resolution logic
- Added comprehensive integration tests for all dependency features

### Changed
- Added pre-test stage reset to ensure known environment state before integration tests (#54)
- Upload endpoint now accepts optional `ensure` file parameter for declaring dependencies
- Updated upload API documentation with ensure file format and examples
- Converted teams list and team projects to use DataTable component for consistent styling
- Centered team members and team settings page content
- Added orchard logo icon and dot separator to footer

### Fixed
- Fixed dark theme styling for team pages - modals, forms, and dropdowns now use correct theme variables
- Fixed UserAutocomplete and TeamSelector dropdown backgrounds for dark theme

## [0.5.1] - 2026-01-23
### Changed
- Simplified tag pipeline to only run deploy and smoke tests (image already built on main) (#54)

### Fixed
- Fixed production CI deployment namespace to use correct `orch-namespace` (#54)
- Added gitleaks config to allowlist test files from secret scanning (#54)

## [0.5.0] - 2026-01-23
### Added
- Added factory reset endpoint `POST /api/v1/admin/factory-reset` for test environment cleanup (#54)
  - Requires admin authentication and `X-Confirm-Reset: yes-delete-all-data` header
  - Drops all database tables, clears S3 bucket, reinitializes schema, re-seeds default data
  - CI pipeline automatically calls this after integration tests on stage
- Added `delete_all()` method to storage backend for bulk S3 object deletion (#54)
- Added AWS Secrets Manager CSI driver support for database credentials (#54)
- Added SecretProviderClass template for Secrets Manager integration (#54)
- Added IRSA service account annotations for prod and stage environments (#54)
- Added comprehensive upload/download tests for size boundaries (1B to 1GB) (#38)
- Added concurrent upload/download tests (2, 5, 10 parallel operations) (#38)
- Added data integrity tests (binary, text, unicode, compressed content) (#38)
- Added chunk boundary tests for edge cases (#38)
- Added `@pytest.mark.large` and `@pytest.mark.concurrent` test markers (#38)
- Added `generate_content()` and `generate_content_with_hash()` test helpers (#38)
- Added `sized_content` fixture for generating test content of specific sizes (#38)
- Added upload API tests: upload without tag, artifact creation verification, S3 object creation (#38)
- Added download API tests: tag: prefix resolution, 404 for nonexistent project/package/artifact (#38)
- Added download header tests: Content-Type, Content-Length, Content-Disposition, ETag, X-Checksum-SHA256 (#38)
- Added error handling tests: timeout behavior, checksum validation, resource cleanup, graceful error responses (#38)
- Added version API tests: version creation, auto-detection, listing, download by version prefix (#38)
- Added integrity verification tests: round-trip hash verification, client-side verification workflow, size variants (1KB-10MB) (#40)
- Added consistency check endpoint tests with response format validation (#40)
- Added corruption detection tests: bit flip, truncation, appended content, size mismatch, missing S3 objects (#40)
- Added Digest header tests (RFC 3230) and verification mode tests (#40)
- Added integrity verification documentation (`docs/integrity-verification.md`) (#40)
- Added conditional request support for downloads (If-None-Match, If-Modified-Since) returning 304 Not Modified (#42)
- Added caching headers to downloads: Cache-Control (immutable), Last-Modified (#42)
- Added 416 Range Not Satisfiable response for invalid range requests (#42)
- Added download completion logging with bytes transferred and throughput (#42)
- Added client disconnect handling during streaming downloads (#42)
- Added streaming download tests: range requests, conditional requests, caching headers, download resume (#42)
- Added upload duration and throughput metrics (`duration_ms`, `throughput_mbps`) to upload response (#43)
- Added upload progress logging for large files (hash computation and multipart upload phases) (#43)
- Added client disconnect handling during uploads with proper cleanup (#43)
- Added upload progress tracking endpoint `GET /upload/{upload_id}/progress` for resumable uploads (#43)
- Added large file upload tests (10MB, 100MB, 1GB) with multipart upload verification (#43)
- Added upload cancellation and timeout handling tests (#43)
- Added comprehensive API documentation for upload endpoints with curl, Python, and JavaScript examples (#43)
- Added `package_versions` table for immutable version tracking separate from mutable tags (#56)
  - Versions are set at upload time via explicit `version` parameter or auto-detected from filename/metadata
  - Version detection priority: explicit parameter > package metadata > filename pattern
  - Versions are immutable once created (unlike tags which can be moved)
- Added version API endpoints (#56):
  - `GET /api/v1/project/{project}/{package}/versions` - List all versions for a package
  - `GET /api/v1/project/{project}/{package}/versions/{version}` - Get specific version details
  - `DELETE /api/v1/project/{project}/{package}/versions/{version}` - Delete a version (admin only)
- Added version support to upload endpoint via `version` form parameter (#56)
- Added `version:X.Y.Z` prefix for explicit version resolution in download refs (#56)
- Added version field to tag responses (shows which version the artifact has, if any) (#56)
- Added migration `007_package_versions.sql` with ref_count triggers and data migration from semver tags (#56)
- Added production deployment job triggered by semantic version tags (v1.0.0) with manual approval gate (#63)
- Added production Helm values file with persistence enabled (20Gi PostgreSQL, 100Gi MinIO) (#63)
- Added integration tests for production deployment (#63)
- Added GitLab CI pipeline for feature branch deployments to dev namespace (#51)
- Added `deploy_feature` job with dynamic hostnames and unique release names (#51)
- Added `cleanup_feature` job with `on_stop` for automatic cleanup on merge (#51)
- Added `values-dev.yaml` Helm values for lightweight ephemeral environments (#51)
- Added main branch deployment to stage environment (#51)
- Added post-deployment integration tests (#51)
- Added internal proxy configuration for npm, pip, helm, and apt (#51)

### Changed
- Configured stage and prod to use AWS RDS instead of PostgreSQL subchart (#54)
- Configured stage and prod to use AWS S3 instead of MinIO subchart (#54)
- Changed prod deployment from manual to automatic on version tags (#54)
- Updated S3 client to support IRSA credentials when no explicit keys provided (#54)
- Changed prod image pullPolicy to Always (#54)
- Added proxy-body-size annotation to prod ingress for large uploads (#54)
- CI integration tests now run full pytest suite (~350 tests) against deployed environment instead of 3 smoke tests
- CI production deployment uses lightweight smoke tests only (no test data creation in prod)
- CI pipeline improvements: shared pip cache, `interruptible` flag on test jobs, retry on integration tests
- Simplified deploy verification to health check only (full checks done by integration tests)
- Extracted environment URLs to global variables for maintainability
- Made `cleanup_feature` job standalone (no longer inherits deploy template dependencies)
- Renamed `integration_test_prod` to `smoke_test_prod` for clarity
- Updated download ref resolution to check versions before tags (version → tag → artifact ID) (#56)
- Deploy jobs now require all security scans to pass before deployment (added test_image, app_deps_scan, cve_scan, cve_sbom_analysis, app_sbom_analysis to dependencies) (#63)
- Increased deploy job timeout from 5m to 10m (#63)
- Added `--atomic` flag to Helm deployments for automatic rollback on failure
- Adjusted dark mode color palette to use lighter background tones for better readability and reduced eye strain (#52)
- Replaced project card grid with sortable data table on Home page for better handling of large project lists
- Replaced package card grid with sortable data table on Project page for consistency
- Replaced SortDropdown with table header sorting on Package page for consistency
- Enabled sorting on supported table columns (name, created, updated) via clickable headers
- Updated browser tab title to "Orchard" with custom favicon
- Improved pod naming: Orchard pods now named `orchard-{env}-server-*` for clarity (#51)

### Fixed
- Fixed factory reset not creating default admin user after reset (#60)
- Admin user was only created at server startup, not after factory reset
- CI reset job would fail to login because admin user didn't exist
- Improved reset_stage CI job reliability (#60)
- Added application-level retry logic (3 attempts with 5s delay)
- Added job-level retry for transient failures
- Fixed httpx client to use proper context manager
- Increased timeout to 120s for reset operations
- Fixed CI integration test rate limiting: added configurable `ORCHARD_LOGIN_RATE_LIMIT` env var, relaxed to 1000/minute for dev/stage
- Fixed duplicate `TestSecurityEdgeCases` class definition in test_auth_api.py
- Fixed integration tests auth: session-scoped client, configurable credentials via env vars, fail-fast on auth errors
- Fixed 413 Request Entity Too Large errors on uploads by adding `proxy-body-size: "0"` nginx annotation to Orchard ingress
- Fixed CI tests that require direct S3 access: added `@pytest.mark.requires_direct_s3` marker and excluded from CI
- Fixed ref_count triggers not being created: added auto-migration for tags ref_count trigger functions
- Fixed Content-Disposition header encoding for non-ASCII filenames using RFC 5987 (#38)
- Fixed deploy jobs running even when tests or security scans fail (changed rules from `when: always` to `when: on_success`) (#63)
- Fixed python_tests job not using internal PyPI proxy (#63)
- Fixed `cleanup_feature` job failing when branch is deleted (`GIT_STRATEGY: none`) (#51)
- Fixed gitleaks false positives with fingerprints for historical commits (#51)
- Fixed integration tests running when deploy fails (`when: on_success`) (#51)
- Fixed static file serving for favicon and other files in frontend dist root
- Fixed deploy jobs running when secrets scan fails (added `secrets` to deploy dependencies)
- Fixed dev environment memory requests to equal limits per cluster Kyverno policy
- Fixed init containers missing resource limits (Kyverno policy compliance)
- Fixed Python SyntaxWarning for invalid escape sequence in database migration regex pattern

### Removed
- Removed unused `store_streaming()` method from storage.py (#51)
- Disabled PostgreSQL subchart for stage and prod environments (#54)
- Disabled MinIO subchart for stage and prod environments (#54)

## [0.4.0] - 2026-01-12
### Added
- Added user authentication system with session-based login (#50)
  - `users` table with password hashing (bcrypt), admin flag, active status
  - `sessions` table for web login sessions (24-hour expiry)
  - `auth_settings` table for future OIDC configuration
  - Default admin user created on first boot (username: admin, password: admin)
- Added auth API endpoints (#50)
  - `POST /api/v1/auth/login` - Login with username/password
  - `POST /api/v1/auth/logout` - Logout and clear session
  - `GET /api/v1/auth/me` - Get current user info
  - `POST /api/v1/auth/change-password` - Change own password
- Added API key management with user ownership (#50)
  - `POST /api/v1/auth/keys` - Create API key (format: `orch_<random>`)
  - `GET /api/v1/auth/keys` - List user's API keys
  - `DELETE /api/v1/auth/keys/{id}` - Revoke API key
  - Added `owner_id`, `scopes`, `description` columns to `api_keys` table
- Added admin user management endpoints (#50)
  - `GET /api/v1/admin/users` - List all users
  - `POST /api/v1/admin/users` - Create user
  - `GET /api/v1/admin/users/{username}` - Get user details
  - `PUT /api/v1/admin/users/{username}` - Update user (admin/active status)
  - `POST /api/v1/admin/users/{username}/reset-password` - Reset password
- Added `auth.py` module with AuthService class and FastAPI dependencies (#50)
- Added auth schemas: LoginRequest, LoginResponse, UserResponse, APIKeyResponse (#50)
- Added migration `006_auth_tables.sql` for auth database tables (#50)
- Added frontend Login page with session management (#50)
- Added frontend API Keys management page (#50)
- Added frontend Admin Users page (admin-only) (#50)
- Added AuthContext for frontend session state (#50)
- Added user menu to Layout header with login/logout (#50)
- Added 15 integration tests for auth system (#50)
- Added reusable `DragDropUpload` component for artifact uploads (#8)
  - Drag-and-drop file selection with visual feedback
  - Click-to-browse fallback
  - Multiple file upload support with queue management
  - Real-time progress indicators with speed and ETA
  - File type and size validation (configurable)
  - Concurrent upload handling (configurable max concurrent)
  - Automatic retry with exponential backoff for network errors
  - Individual file status (pending, uploading, complete, failed)
  - Retry and remove actions per file
  - Auto-dismiss success messages after 5 seconds
- Integrated DragDropUpload into PackagePage replacing basic file input (#8)
- Added frontend testing infrastructure with Vitest and React Testing Library (#14)
  - Configured Vitest for React/TypeScript with jsdom
  - Added 24 unit tests for DragDropUpload component
  - Tests cover: rendering, drag-drop events, file validation, upload queue, progress, errors
- Added chunked upload support for large files (#9)
  - Files >100MB automatically use chunked upload API (10MB chunks)
  - Client-side SHA256 hash computation via Web Crypto API
  - localStorage persistence for resume after browser close
  - Deduplication check at upload init phase
- Added offline detection and network resilience (#12)
  - Automatic pause when browser goes offline
  - Auto-resume when connection restored
  - Offline banner UI with status message
  - XHR abort on network loss to prevent hung requests
- Added download by artifact ID feature (#10)
  - Direct artifact ID input field on package page
  - Hex-only input validation with character count
  - File size and filename displayed in tag list
- Added backend security tests (#15)
  - Path traversal prevention tests for upload/download
  - Malformed request handling tests
  - Checksum validation tests
  - 10 new security-focused integration tests
- Added download verification with `verify` and `verify_mode` query parameters (#26)
  - `?verify=true&verify_mode=pre` - Pre-verification: verify before streaming (guaranteed no corrupt data)
  - `?verify=true&verify_mode=stream` - Streaming verification: verify while streaming (logs error if mismatch)
- Added checksum response headers to all download endpoints (#27)
  - `X-Checksum-SHA256` - SHA256 hash of the artifact
  - `X-Content-Length` - File size in bytes
  - `X-Checksum-MD5` - MD5 hash (if available)
  - `ETag` - Artifact ID (SHA256)
  - `Digest` - RFC 3230 format sha-256 hash (base64)
  - `X-Verified` - Verification status (true/false/pending)
- Added `checksum.py` module with SHA256 utilities (#26)
  - `compute_sha256()` and `compute_sha256_stream()` functions
  - `HashingStreamWrapper` for incremental hash computation
  - `VerifyingStreamWrapper` for stream verification
  - `verify_checksum()` and `verify_checksum_strict()` functions
  - `ChecksumMismatchError` exception with context
- Added `get_verified()` and `get_stream_verified()` methods to storage layer (#26)
- Added `logging_config.py` module with structured logging (#28)
  - JSON logging format for production
  - Request ID tracking via context variables
  - Verification failure logging with full context
- Added `log_level` and `log_format` settings to configuration (#28)
- Added 62 unit tests for checksum utilities and verification (#29)
- Added 17 integration tests for download verification API (#29)
- Added global artifacts endpoint `GET /api/v1/artifacts` with project/package/tag/size/date filters (#18)
- Added global tags endpoint `GET /api/v1/tags` with project/package/search/date filters (#18)
- Added wildcard pattern matching (`*`) for tag filters across all endpoints (#18)
- Added comma-separated multi-value support for tag filters (#18)
- Added `search` parameter to `/api/v1/uploads` for filename search (#18)
- Added `tag` filter to `/api/v1/uploads` endpoint (#18)
- Added `sort` and `order` parameters to `/api/v1/uploads` endpoint (#18)
- Added `min_size` and `max_size` filters to package artifacts endpoint (#18)
- Added `sort` and `order` parameters to package artifacts endpoint (#18)
- Added `from` and `to` date filters to package tags endpoint (#18)
- Added `GlobalArtifactResponse` and `GlobalTagResponse` schemas (#18)
- Added S3 object verification before database commit during upload (#19)
- Added S3 object cleanup on database commit failure (#19)
- Added upload duration tracking (`duration_ms` field) (#19)
- Added `User-Agent` header capture during uploads (#19)
- Added `X-Checksum-SHA256` header support for client-side checksum verification (#19)
- Added `status`, `error_message`, `client_checksum` columns to uploads table (#19)
- Added `upload_locks` table for future concurrent upload conflict detection (#19)
- Added consistency check endpoint `GET /api/v1/admin/consistency-check` (#19)
- Added `PUT /api/v1/projects/{project}` endpoint for project updates with audit logging (#20)
- Added `PUT /api/v1/project/{project}/packages/{package}` endpoint for package updates with audit logging (#20)
- Added `artifact.download` audit logging to download endpoint (#20)
- Added `ProjectHistory` and `PackageHistory` models with database triggers (#20)
- Added migration `004_history_tables.sql` for project/package history (#20)
- Added migration `005_upload_enhancements.sql` for upload status tracking (#19)
- Added 9 integration tests for global artifacts/tags endpoints (#18)
- Added global uploads query endpoint `GET /api/v1/uploads` with project/package/user/date filters (#18)
- Added project-level uploads endpoint `GET /api/v1/project/{project}/uploads` (#18)
- Added `has_more` field to pagination metadata for easier pagination UI (#18)
- Added `upload_id`, `content_type`, `original_name`, `created_at` fields to upload response (#19)
- Added audit log API endpoints with filtering and pagination (#20)
  - `GET /api/v1/audit-logs` - list all audit logs with action/resource/user/date filters
  - `GET /api/v1/projects/{project}/audit-logs` - project-scoped audit logs
  - `GET /api/v1/project/{project}/{package}/audit-logs` - package-scoped audit logs
- Added upload history API endpoints (#20)
  - `GET /api/v1/project/{project}/{package}/uploads` - list upload events for a package
  - `GET /api/v1/artifact/{id}/uploads` - list all uploads of a specific artifact
- Added artifact provenance endpoint `GET /api/v1/artifact/{id}/history` (#20)
  - Returns full artifact history including packages, tags, and upload events
- Added audit logging for project.create, package.create, tag.create, tag.update, artifact.upload actions (#20)
- Added `AuditLogResponse`, `UploadHistoryResponse`, `ArtifactProvenanceResponse` schemas (#20)
- Added `TagHistoryDetailResponse` schema with artifact metadata (#20)
- Added 31 integration tests for audit log, history, and upload query endpoints (#22)
### Changed
- Standardized audit action naming to `{entity}.{action}` pattern (project.delete, package.delete, tag.delete) (#20)
- Added `StorageBackend` protocol/interface for backend-agnostic storage (#33)
- Added `health_check()` method to storage backend with `/health` endpoint integration (#33)
- Added `verify_integrity()` method for post-upload hash validation (#33)
- Added S3 configuration options: `s3_verify_ssl`, `s3_connect_timeout`, `s3_read_timeout`, `s3_max_retries` (#33)
- Added `S3StorageUnavailableError` and `HashCollisionError` exception types (#33)
- Added hash collision detection by comparing file sizes during deduplication (#33)
- Added garbage collection endpoint `POST /api/v1/admin/garbage-collect` for orphaned artifacts (#36)
- Added orphaned artifacts listing endpoint `GET /api/v1/admin/orphaned-artifacts` (#36)
- Added global storage statistics endpoint `GET /api/v1/stats` (#34)
- Added storage breakdown endpoint `GET /api/v1/stats/storage` (#34)
- Added deduplication metrics endpoint `GET /api/v1/stats/deduplication` (#34)
- Added per-project statistics endpoint `GET /api/v1/projects/{project}/stats` (#34)
- Added per-package statistics endpoint `GET /api/v1/project/{project}/packages/{package}/stats` (#34)
- Added per-artifact statistics endpoint `GET /api/v1/artifact/{id}/stats` (#34)
- Added cross-project deduplication endpoint `GET /api/v1/stats/cross-project` (#34)
- Added timeline statistics endpoint `GET /api/v1/stats/timeline` with daily/weekly/monthly periods (#34)
- Added stats export endpoint `GET /api/v1/stats/export` with JSON/CSV formats (#34)
- Added summary report endpoint `GET /api/v1/stats/report` with markdown/JSON formats (#34)
- Added Dashboard page at `/dashboard` with storage and deduplication visualizations (#34)
- Added pytest infrastructure with mock S3 client for unit testing (#35)
- Added unit tests for SHA256 hash calculation (#35)
- Added unit tests for duplicate detection and deduplication behavior (#35)
- Added integration tests for upload scenarios and ref_count management (#35)
- Added integration tests for S3 verification and failure cleanup (#35)
- Added integration tests for all stats endpoints (#35)
- Added integration tests for cascade deletion ref_count behavior (package/project delete) (#35)
- Added integration tests for tag update ref_count adjustments (#35)
- Added integration tests for garbage collection endpoints (#35)
- Added integration tests for file size validation (#35)
- Added test dependencies to requirements.txt (pytest, pytest-asyncio, pytest-cov, httpx, moto) (#35)
- Added `ORCHARD_MAX_FILE_SIZE` config option (default: 10GB) for upload size limits (#37)
- Added `ORCHARD_MIN_FILE_SIZE` config option (default: 1 byte, rejects empty files) (#37)
- Added file size validation to upload and resumable upload endpoints (#37)
- Added comprehensive deduplication design document (`docs/design/deduplication-design.md`) (#37)
### Fixed
- Fixed Helm chart `minio.ingress` conflicting with Bitnami MinIO subchart by renaming to `minioIngress` (#48)
- Fixed JSON report serialization error for Decimal types in `GET /api/v1/stats/report` (#34)
- Fixed resumable upload double-counting ref_count when tag provided (removed manual increment, SQL triggers handle it) (#35)

## [0.3.0] - 2025-12-15
### Changed
- Changed default download mode from `proxy` to `presigned` for better performance (#48)
### Added
- Added presigned URL support for direct S3 downloads (#48)
- Added `ORCHARD_DOWNLOAD_MODE` config option (`presigned`, `redirect`, `proxy`) (#48)
- Added `ORCHARD_PRESIGNED_URL_EXPIRY` config option (default: 3600 seconds) (#48)
- Added `?mode=` query parameter to override download mode per-request (#48)
- Added `/api/v1/project/{project}/{package}/+/{ref}/url` endpoint for getting presigned URLs (#48)
- Added `PresignedUrlResponse` schema with URL, expiry, checksums, and artifact metadata (#48)
- Added MinIO ingress support in Helm chart for presigned URL access (#48)
- Added `orchard.download.mode` and `orchard.download.presignedUrlExpiry` Helm values (#48)
- Added integrity verification workflow design document (#24)
- Added `sha256` field to API responses for clarity (alias of `id`) (#25)
- Added `checksum_sha1` field to artifacts table for compatibility (#25)
- Added `s3_etag` field to artifacts table for S3 verification (#25)
- Compute and store MD5, SHA1, and S3 ETag alongside SHA256 during upload (#25)
- Added `Dockerfile.local` and `docker-compose.local.yml` for local development (#25)
- Added migration script `003_checksum_fields.sql` for existing databases (#25)

## [0.2.0] - 2025-12-15
### Added
- Added `format` and `platform` fields to packages table (#16)
- Added `checksum_md5` and `metadata` JSONB fields to artifacts table (#16)
- Added `updated_at` field to tags table (#16)
- Added `tag_name`, `user_agent`, `duration_ms`, `deduplicated`, `checksum_verified` fields to uploads table (#16)
- Added `change_type` field to tag_history table (#16)
- Added composite indexes for common query patterns (#16)
- Added GIN indexes on JSONB fields for efficient JSON queries (#16)
- Added partial index for public projects (#16)
- Added database triggers for `updated_at` timestamps (#16)
- Added database triggers for maintaining artifact `ref_count` accuracy (#16)
- Added CHECK constraints for data integrity (`size > 0`, `ref_count >= 0`) (#16)
- Added migration script `002_schema_enhancements.sql` for existing databases (#16)
### Changed
- Updated images to use internal container BSF proxy (#46)

## [0.1.0] - 2025-12-12
### Added
- Added Prosper docker template config (#45)
### Changed
- Changed the Dockerfile npm build arg to use the deps.global.bsf.tools URL as the default registry (#45)