Support RESTful Same-Route Multi-Verb Matching + add CI workflow

[shiling]

RESTful Multi-Verb Same-Route Matching

• Multi-Verb Path Delegation: Enabled mapping of multiple controller methods to the identical path string but restricted to separate HTTP verbs (e.g. mapping GET /api/resource to one handler, and POST /api/resource or DELETE /api/resource to others).
• Duplicate Verb Conflict Verification: Implemented strict collision detection at registration initialization time. If overlapping HTTP verbs are registered on the same route path (e.g., two GET handlers or a specific verb and an unrestricted/omitted verb handler), an IllegalStateException is thrown instantly.
• Universal Request Interception: Validated and ensured that @RequestBefore and @RequestAfter interceptors on identical paths match seamlessly on all incoming requests regardless of the specific HTTP verb executed by the client.

CI Workflow Configuration

Automated CI Workflow: Configured .github/workflows/gh-build-test.yml inside the repository to run on all pushes and pull requests to master.

Minor

• updated dstack dependency to v 4.1.12
• version bump to 4.1.13