enhance(actions): Make Summary UI more beautiful with more infos (#37824)

## Summary

- Redesign the Actions run summary header to follow GitHub Actions
layout: trigger info on the left, Status / Total duration / Artifacts
columns inline on the right
- Expose trigger user avatar, pull request link, and PR head branch info
from the run view API
- Update the workflow graph header to show the workflow filename (linked
to the run workflow file) and `on: <event>`, while keeping the
jobs/dependencies/success stats line
- Remove the redundant commit/workflow metadata row below the run title;
that information now lives in the summary bar

New:
<img width="1564" height="639"
src="https://github.com/user-attachments/assets/e6bc1623-c5fc-4e97-abc9-fde7f3c6aef9"
/>

Old:
<img width="2038" height="1038"
src="https://github.com/user-attachments/assets/0857f19a-8d3a-4da2-82fd-e9ebeb200062"
/>

Replaces https://github.com/go-gitea/gitea/pull/36721

---------

Co-authored-by: Giteabot <teabot@gitea.io>

web_src/js/features/repo-actions.ts

@@ -30,6 +30,10 @@ export function initRepositoryActionView() {
       expandCallerJobs: el.getAttribute('data-locale-expand-caller-jobs'),
       collapseCallerJobs: el.getAttribute('data-locale-collapse-caller-jobs'),
       triggeredVia: el.getAttribute('data-locale-triggered-via'),
+      rerunTriggered: el.getAttribute('data-locale-rerun-triggered'),
+      backToPullRequest: el.getAttribute('data-locale-back-to-pull-request'),
+      backToWorkflow: el.getAttribute('data-locale-back-to-workflow'),
+      statusLabel: el.getAttribute('data-locale-status-label'),
       totalDuration: el.getAttribute('data-locale-total-duration'),
       artifactsTitle: el.getAttribute('data-locale-artifacts-title'),
       artifactExpired: el.getAttribute('data-locale-artifact-expired'),