Hide the "Details" link of commit status when the user cannot access actions (#30156)

Fix #26685

If a commit status comes from Gitea Actions and the user cannot access
the repo's actions unit (the user does not have the permission or the
actions unit is disabled), a 404 page will occur after clicking the
"Details" link. We should hide the "Details" link in this case.

<img
src="68361714-b784-4bb5-baab-efde4221f466"
width="400px" />

(cherry picked from commit 7dec8de9147b20c014d68bb1020afe28a263b95a)

Conflicts:
	routers/web/repo/commit.go
  trivial context commit

models/git/commit_status_test.go

@@ -4,9 +4,11 @@
 package git_test
 
 import (
+	"fmt"
 	"testing"
 	"time"
 
+	actions_model "code.gitea.io/gitea/models/actions"
 	"code.gitea.io/gitea/models/db"
 	git_model "code.gitea.io/gitea/models/git"
 	repo_model "code.gitea.io/gitea/models/repo"
@@ -240,3 +242,26 @@ func TestFindRepoRecentCommitStatusContexts(t *testing.T) {
 		assert.Equal(t, "compliance/lint-backend", contexts[0])
 	}
 }
+
+func TestCommitStatusesHideActionsURL(t *testing.T) {
+	assert.NoError(t, unittest.PrepareTestDatabase())
+
+	repo := unittest.AssertExistsAndLoadBean(t, &repo_model.Repository{ID: 4})
+	run := unittest.AssertExistsAndLoadBean(t, &actions_model.ActionRun{ID: 791, RepoID: repo.ID})
+	assert.NoError(t, run.LoadAttributes(db.DefaultContext))
+
+	statuses := []*git_model.CommitStatus{
+		{
+			RepoID:    repo.ID,
+			TargetURL: fmt.Sprintf("%s/jobs/%d", run.Link(), run.Index),
+		},
+		{
+			RepoID:    repo.ID,
+			TargetURL: "https://mycicd.org/1",
+		},
+	}
+
+	git_model.CommitStatusesHideActionsURL(db.DefaultContext, statuses)
+	assert.Empty(t, statuses[0].TargetURL)
+	assert.Equal(t, "https://mycicd.org/1", statuses[1].TargetURL)
+}