Print PR-Title into tooltip for actions (go-gitea#35579)

This PR updates the tooltip for Pull-Request triggered runs to show the
PR title instead of the PR number.

---
I dont remember PR numbers, so having the title in the tooltip makes it
much easier to recognize the right one 😊

Current
<img width="290" height="88" alt="Screenshot 2025-10-03 231547"
src="https://github.com/user-attachments/assets/dd8d264d-933f-4fb1-a945-82b172f95861"
/>

After
<img width="301" height="91" alt="Screenshot 2025-10-03 224628"
src="https://github.com/user-attachments/assets/74c9809a-c09a-4804-bb27-79058a99238b"
/>

---------

Co-authored-by: wxiaoguang <[email protected]>

Author: da-Kai

models/actions/run.go

@@ -102,6 +102,15 @@ func (run *ActionRun) PrettyRef() string {
 	return refName.ShortName()
 }
 
+// RefTooltip return a tooltop of run's ref. For pull request, it's the title of the PR, otherwise it's the ShortName.
+func (run *ActionRun) RefTooltip() string {
+	payload, err := run.GetPullRequestEventPayload()
+	if err == nil && payload != nil && payload.PullRequest != nil {
+		return payload.PullRequest.Title
+	}
+	return git.RefName(run.Ref).ShortName()
+}
+
 // LoadAttributes load Repo TriggerUser if not loaded
 func (run *ActionRun) LoadAttributes(ctx context.Context) error {
 	if run == nil {

templates/repo/actions/runs_list.tmpl

@@ -28,9 +28,9 @@
 			</div>
 			<div class="flex-item-trailing">
 				{{if $run.IsRefDeleted}}
-					<span class="ui label run-list-ref gt-ellipsis tw-line-through" data-tooltip-content="{{$run.PrettyRef}}">{{$run.PrettyRef}}</span>
+					<span class="ui label run-list-ref gt-ellipsis tw-line-through" data-tooltip-content="{{$run.RefTooltip}}">{{$run.PrettyRef}}</span>
 				{{else}}
-					<a class="ui label run-list-ref gt-ellipsis" href="{{$run.RefLink}}" data-tooltip-content="{{$run.PrettyRef}}">{{$run.PrettyRef}}</a>
+					<a class="ui label run-list-ref gt-ellipsis" href="{{$run.RefLink}}" data-tooltip-content="{{$run.RefTooltip}}">{{$run.PrettyRef}}</a>
 				{{end}}
 				<div class="run-list-item-right">
 					<div class="run-list-meta">{{svg "octicon-calendar" 16}}{{DateUtils.TimeSince $run.Updated}}</div>