feat: implement eligibility REST API endpoint

[Agrendalath]

Added

• Credential eligibility check endpoint (GET /api/learning_credentials/v1/eligibility/<learning_context_key>/) with detailed progress information.

Changed

• Processor functions now return dict[int, dict[str, Any]] with detailed eligibility information instead of list[int] of eligible user IDs.
• Processor functions now accept an optional user_id parameter for single-user eligibility checks.

[Copilot]

Pull request overview

This pull request adds new REST API endpoints for credential eligibility checking and generation, marking version 0.5.1rc1. The changes refactor the internal processor functions to return detailed eligibility information (as dictionaries) rather than simple lists of eligible user IDs, enabling more informative API responses. The PR introduces three new endpoints: one for checking eligibility with detailed progress information, one for triggering credential generation, and one for listing user credentials.

Changes:

• Refactored processor functions to return dict[int, dict[str, Any]] with detailed eligibility and progress information instead of list[int]
• Added credential eligibility check endpoint (GET) with detailed progress data including current grades, completion percentages, and existing credential information
• Added credential generation endpoint (POST) for eligible users to request credential generation
• Added credential list endpoint (GET) with optional filtering by learning context

Reviewed changes

Copilot reviewed 12 out of 13 changed files in this pull request and generated 7 comments.

Show a summary per file

File	Description
uv.lock	Updated version lock to 0.5.1rc1
pyproject.toml	Bumped version to 0.5.1rc1
CHANGELOG.rst	Added changelog entry for 0.5.1 release
learning_credentials/processors.py	Refactored all processor functions to return detailed dict results instead of user ID lists; added user_id parameter for single-user queries
learning_credentials/models.py	Added _call_retrieval_func and get_user_eligibility_details methods; updated get_eligible_user_ids to extract eligible IDs from detailed results
learning_credentials/api/v1/views.py	Added CredentialEligibilityView for GET/POST eligibility operations and CredentialListView for listing credentials; updated CredentialConfigurationCheckView permissions
learning_credentials/api/v1/serializers.py	Added CredentialModelSerializer, CredentialEligibilitySerializer, CredentialEligibilityResponseSerializer, and CredentialListResponseSerializer
learning_credentials/api/v1/permissions.py	Added IsAdminOrSelf permission class for username-based access control
learning_credentials/api/v1/urls.py	Added URL patterns for eligibility check, credential generation, and credential list endpoints
tests/test_views.py	Added comprehensive test suites for CredentialEligibilityView and CredentialListView
tests/test_processors.py	Updated tests to match new processor return type and added tests for detailed result structure
tests/test_models.py	Added tests for get_user_eligibility_details method
tests/conftest.py	Updated mock retrieval function to return dict format with user_id parameter support

---

💡 Add Copilot custom instructions for smarter, more guided reviews. Learn how to get started.

[Agrendalath]

Note for future reference: credential list view has been removed in 8d770c1 because we do not need it at the moment.

[Copilot]

Pull request overview

Copilot reviewed 12 out of 13 changed files in this pull request and generated 8 comments.

---

💡 Add Copilot custom instructions for smarter, more guided reviews. Learn how to get started.

[Copilot]

Pull request overview

Copilot reviewed 12 out of 13 changed files in this pull request and generated 6 comments.

---

💡 Add Copilot custom instructions for smarter, more guided reviews. Learn how to get started.

[Copilot]

Pull request overview

Copilot reviewed 13 out of 14 changed files in this pull request and generated 4 comments.

---

💡 Add Copilot custom instructions for smarter, more guided reviews. Learn how to get started.

[Agrendalath]

I'm merging this to unblock things.