Replace index with id in actions routes (#36842)

This PR migrates the web Actions run/job routes from index-based
`runIndex` or `jobIndex` to database IDs.

**⚠️ BREAKING ⚠️**: Existing saved links/bookmarks that use the old
index-based URLs will no longer resolve after this change.

Improvements of this change:
- Previously, `jobIndex` depended on list order, making it hard to
locate a specific job. Using `jobID` provides stable addressing.
- Web routes now align with API, which already use IDs.
- Behavior is closer to GitHub, which exposes run/job IDs in URLs.
- Provides a cleaner base for future features without relying on list
order.
- #36388 this PR improves the support for reusable workflows. If a job
uses a reusable workflow, it may contain multiple child jobs, which
makes relying on job index to locate a job much more complicated

---------

Signed-off-by: Zettat123 <zettat123@gmail.com>
Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>

templates/devtest/repo-action-view.tmpl

@@ -6,8 +6,8 @@
 		<a href="/devtest/repo-action-view/runs/30/jobs/2">Run:CanRerun</a>
 	</div>
 	{{template "repo/actions/view_component" (dict
-		"RunIndex" (or .RunIndex 10)
-		"JobIndex" (or .JobIndex 0)
+		"RunID" (or .RunID 10)
+		"JobID" (or .JobID 0)
 		"ActionsURL" (print AppSubUrl "/devtest/actions-mock")
 	)}}
 </div>