feat(FN-4032): add tracking retry with actionable create issue error in tas

The merge adds a GitHub integration retry lifecycle to the task tracking system, including an actionable retry mechanism for failed issue creation, fixes to tracking and auth retry flow, and corresponding tests in the dashboard and engine packages. Documentation is updated in `docs/architecture.md`

Fusion-Task-Id: FN-4032

packages/dashboard/src/__tests__/github-tracking.test.ts

@@ -211,4 +211,16 @@ describe("maybeCreateTrackingIssue", () => {
     }));
     expect(createIssueMock).not.toHaveBeenCalled();
   });
+
+  it("passes global settings through to auth resolution", async () => {
+    const globalSettings = { githubTrackingDefaultRepo: "o/r", githubAuthMode: "token" } as any;
+    await maybeCreateTrackingIssue(buildTask({ githubTracking: { enabled: true } }), {
+      taskStore: { linkGithubIssue: vi.fn(), recordActivity: vi.fn() } as any,
+      projectSettings: {},
+      globalSettings,
+      logger: { warn: vi.fn(), info: vi.fn() },
+    });
+
+    expect(resolveAuthMock).toHaveBeenCalledWith(expect.objectContaining({ globalSettings }));
+  });
 });