feat(store): Migration overhaul (bun orm)

[jay-dee7]

Motivation & Context:

This is a gigantic effort to refresh OpenRegistry & redo some of the pending restructuring. The persistence layer was tightly coupled with a database & extending it was difficult.

Description:

We add new features, re-structure some old ones, make existing persistence layer flexible by using an ORM (bun) and update our implementation of OCI specific APIs.

OCI Features and Changes

• We add the new Referrers API - OCI Spec Link
• Use the official data structures for storing OCI descriptors (image manifest, manifest config, layers, etc all use the Image Spec's Descriptor type as recommended by the OCI team)
• We now store the Image manifest locally instead of uploading to enabled DFS. Manifests are usually small in size & are in JSON format, which makes storing them easier & operations on them become a lot easier.
• Use OCI Dist Spec's github.com/opencontainers/go-digest/Digest type for working with digests
• Push Manifest API transparently accepts manifests with subject field
  • Push Manifest also creates a repository first if one does not exist

Registry Backend Features and Changes

• Repositories can now we Private or Public
• New Create Repository API, which defaults to private visibility
• New Public Catalog API, which returns a public catalog to repositories (all public repositories)
• New Get User Catalog API, which returns a user's catalog, which can be filtered by public or private visibility modes
• New Change Repository Visibility API, which let's a user toggle the visibility of a repository
• New Repository Propagation Middleware, which sets the requested repository in request's context on all repository namespaced endpoints

Persistence Store Changes

• Remove the old implementation
• Add the new implementation under store/v1
• Replace PostgreSQL pgx driver with Bun's Uptrace ORM

Logging & Telemetry

• We've added OpenTelemetry based metrics
• Fixed Logging & log formats
• Added axiom.co as a possible log destination

Operational improvements

• Built-in store/database migration system backend by The Uptrace Bun ORM
• New command line interface
  • migrations - Run & manage database migrations
    • init - Initialise the database with all the tables, users, permissions, etc
    • run - Run database migrations
    • rollback - Rollback the latest migration
    • generate - Generate a new migration file
    • reset - Recreate the database by deleting it first
  • start - Start the OpenRegistry server
  • extras - Helpful commands like creating digest of random input

Types of Changes:

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to change)

PR Checklist:

• My code follows the code style of this project
• My change requires a change to the documentation
• I have updated the documentation accordingly
• I've read the CONTRIBUTION guide
• I have signed-off my commits with git commit -s