Consolidate sync actions in route handlers

[cmelone]

There was a lot of duplicated code/logic in the route handlers, especially for the sync/delete ref actions. I was a bit aggressive with the consolidation, so let me know if you'd like to keep something expanded.

NOTE:

• when should refresh=True when calling get_repo_config?
• apologies in advance for the atrocious diff
• the gitlab webhook is now created/managed in the shared sync helper rather than exclusively in the push handler

[Copilot]

Pull request overview

This PR consolidates duplicated logic in GitHub route handlers by extracting common sync, delete, and pipeline context operations into shared helper functions. The RepoConfig class is also updated to compute fullname automatically.

Changes:

• Extracted _sync_refs, _delete_ref, _get_dest_context, _get_pr_target_ref, and _get_pr_pipeline_context as shared helpers to eliminate duplicated code across push and pull request event handlers.
• Simplified sync_pr signature by removing the src_repo_private parameter (now derived from the pull_request dict directly).
• Changed RepoConfig.fullname to be auto-computed from dest_org and dest_name instead of being passed as a separate parameter.

Reviewed changes

Copilot reviewed 2 out of 2 changed files in this pull request and generated 3 comments.

File	Description
src/hubcast/web/github/routes.py	Route handlers refactored to use new helper functions, removing significant code duplication
src/hubcast/repos/config.py	RepoConfig.fullname now auto-computed from dest_org/dest_name

---

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

[Copilot]

Pull request overview

Copilot reviewed 2 out of 2 changed files in this pull request and generated 4 comments.

---

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

[Copilot]

Pull request overview

Copilot reviewed 2 out of 2 changed files in this pull request and generated 2 comments.

---

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

[Copilot]

In the sync_pr flow, get_repo_config is called twice: once here (without refresh) for the draft check, and again inside _sync_refs → _get_dest_context (with refresh=True). Consider passing the already-fetched repo_config into _sync_refs to avoid the redundant network call, or at minimum make the refresh parameter in _get_dest_context configurable rather than always True.

Suggested change

	async def _get_dest_context(repo_fullname, gh, gl, gl_user):
	"""Returns common destination repo details needed for sync/delete operations."""
	repo_config = await get_repo_config(gh, repo_fullname, refresh=True)
	async def _get_dest_context(repo_fullname, gh, gl, gl_user, *, refresh: bool = True, repo_config=None):
	"""Returns common destination repo details needed for sync/delete operations."""
	if repo_config is None or refresh:
	repo_config = await get_repo_config(gh, repo_fullname, refresh=refresh)