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/repo/actions/view.tmpl

@@ -3,8 +3,8 @@
 <div class="page-content repository">
 	{{template "repo/header" .}}
 	{{template "repo/actions/view_component" (dict
-		"RunIndex" .RunIndex
-		"JobIndex" .JobIndex
+		"RunID" .RunID
+		"JobID" .JobID
 		"ActionsURL" .ActionsURL
 	)}}
 </div>

templates/repo/actions/view_component.tmpl

@@ -1,6 +1,6 @@
 <div id="repo-action-view"
-		data-run-index="{{.RunIndex}}"
-		data-job-index="{{.JobIndex}}"
+		data-run-id="{{.RunID}}"
+		data-job-id="{{.JobID}}"
 		data-actions-url="{{.ActionsURL}}"
 
 		data-locale-approve="{{ctx.Locale.Tr "repo.diff.review.approve"}}"