fix: resolve actions commit status permission per repository (#38977)

Various pages did not display the correct action run list tooltips. Fix
those tooltips like here on the `/pulls` page:

`ctx.Repo.Permission` is the zero value outside a repository route, so
on `/pulls`, `/issues`, `/notifications/subscriptions` and the dashboard
repo list the commit status "Details" link was always stripped. The live
job status is looked up from that target URL, so running checks also
rendered as a static pending dot instead of a spinner.

Resolve the Actions unit permission per repository instead.

Also drops the releases page's gate on *loading* statuses, which hid
external CI results from anyone without Actions read; it now loads them
and hides only the URL, like every other page.

Co-authored-by: bircni <bircni@icloud.com>

routers/web/repo/branch.go

@@ -70,14 +70,10 @@ func Branches(ctx *context.Context) {
 		ctx.ServerError("LoadBranches", err)
 		return
 	}
-	if !ctx.Repo.Permission.CanRead(unit.TypeActions) {
-		for key := range commitStatuses {
-			git_model.CommitStatusesHideActionsURL(ctx, commitStatuses[key])
-		}
-	}
 
 	commitStatus := make(map[string]*git_model.CommitStatus)
 	for commitID, cs := range commitStatuses {
+		git_model.CommitStatusesApplyDoerPermission(ctx, ctx.Doer, cs)
 		commitStatus[commitID] = git_model.CalcCommitStatus(cs)
 	}