Add "Rerun failed job ➔" link to error comment footer (#355)

* add "Rerun failed job" link to error comment footer

* Remove issueNumber guard from rerun link

The rerun action only needs run_id — the issue number in the trigger
URL path is just a route segment requirement. Use 0 as a fallback
so the link is always shown when a run ID is available.

* Overload `[number]` path segment as `runId` for the rerun action

For the rerun trigger, the `[number]` path param now carries the
workflow run ID instead of an issue number. The rerun link changes
from `/trigger/o/r/ISSUE?action=rerun&run_id=RID` to
`/trigger/o/r/RID?action=rerun`.

- Remove `run_id` query param from page.tsx and searchParams type
- Add error handling around `reRunWorkflow` for invalid run IDs
- Drop `issueNumber` from `BuildErrorCommentBodyParams` and all
  rerun link builders (errorReport, exitHandler, postCleanup)

* Reorder validation: action first, then rerun, then issueNumber

* address review: remove early toolState assignment, restructure rerun into dedicated block

* revert self-contained rerun block, share auth logic via issueOrRunId

* improve error handling

* normalize runid early

---------

Co-authored-by: pullfrog[bot] <226033991+pullfrog[bot]@users.noreply.github.com>
Co-authored-by: Cursor <cursoragent@cursor.com>
Co-authored-by: Mateusz Burzyński <mateuszburzynski@gmail.com>

utils/errorReport.ts

@@ -1,4 +1,5 @@
 import type { ToolState } from "../mcp/server.ts";
+import { getApiUrl } from "./apiUrl.ts";
 import { buildPullfrogFooter } from "./buildPullfrogFooter.ts";
 import { createOctokit, parseRepoContext } from "./github.ts";
 import { getGitHubInstallationToken } from "./token.ts";
@@ -19,12 +20,22 @@ export async function reportErrorToComment(ctx: ReportErrorParams): Promise<void
 
   const repoContext = parseRepoContext();
   const octokit = createOctokit(getGitHubInstallationToken());
-  const runId = process.env.GITHUB_RUN_ID;
+  const runId = process.env.GITHUB_RUN_ID
+    ? Number.parseInt(process.env.GITHUB_RUN_ID, 10)
+    : undefined;
+
+  const customParts: string[] = [];
+  if (runId) {
+    const apiUrl = getApiUrl();
+    customParts.push(
+      `[Rerun failed job ➔](${apiUrl}/trigger/${repoContext.owner}/${repoContext.name}/${runId}?action=rerun)`
+    );
+  }
 
-  // build footer with workflow run link
   const footer = buildPullfrogFooter({
     triggeredBy: true,
     workflowRun: runId ? { owner: repoContext.owner, repo: repoContext.name, runId } : undefined,
+    customParts,
   });
 
   await octokit.rest.issues.updateComment({