FN-5835: reuse imported GitHub source issue tracking

Reuse the existing imported source issue record when tracking GitHub work instead of creating duplicate entries.

- update GitHub tracking logic to detect and reuse previously imported source issues
- add/expand dashboard tracking tests to cover duplicate-import and reuse behavior
- add a changeset documenting the FN-5835 tracking fix for @runfusion/fusion

Files changed:
 .changeset/fn-5835-source-issue-tracking.md        |   5 ++
 .../src/__tests__/github-tracking.test.ts          | 100 ++++++++++++++++++---
 packages/dashboard/src/github-tracking.ts          |  32 +++++++
 3 files changed, 126 insertions(+), 11 deletions(-)

Fusion-Task-Id: FN-5835

Fusion-Task-Lineage: d0827711-8bfb-471c-b2c4-69324da33373

.changeset/fn-5835-source-issue-tracking.md

@@ -0,0 +1,5 @@
+---
+"@runfusion/fusion": patch
+---
+
+Reuse imported GitHub source issues as task tracking links when GitHub tracking is enabled, instead of creating a duplicate issue. Tasks imported from GitHub now link their existing `sourceIssue` (when valid) as `githubTracking.issue` with no GitHub auth or issue creation call required.

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

@@ -375,7 +375,7 @@ describe("maybeCreateTrackingIssue", () => {
     expect(createIssueMock).toHaveBeenCalledTimes(1);
   });
 
-  it("creates issue for github_import tasks when tracking is explicitly enabled", async () => {
+  it("links GitHub sourceIssue instead of creating a duplicate", async () => {
     const linkGithubIssue = vi.fn();
     const recordActivity = vi.fn();
 
@@ -383,6 +383,13 @@ describe("maybeCreateTrackingIssue", () => {
       sourceType: "github_import",
       title: "Imported issue follow-up",
       description: "Short body",
+      sourceIssue: {
+        provider: "github",
+        repository: "upstream/repo",
+        externalIssueId: "123",
+        issueNumber: 123,
+        url: "https://github.com/upstream/repo/issues/123",
+      },
       githubTracking: { enabled: true },
     }), {
       taskStore: { linkGithubIssue, recordActivity } as any,
@@ -392,18 +399,89 @@ describe("maybeCreateTrackingIssue", () => {
       logger: console,
     });
 
-    expect(createIssueMock).toHaveBeenCalledWith(expect.objectContaining({
-      owner: "o",
-      repo: "r",
-      title: "[FN-1] Imported issue follow-up",
-      body: "Fusion task: FN-1\n\nShort body",
+    expect(result).toEqual({ created: false, reason: "source_issue_linked" });
+    expect(createIssueMock).not.toHaveBeenCalled();
+    expect(linkGithubIssue).toHaveBeenCalledWith("FN-1", expect.objectContaining({
+      owner: "upstream",
+      repo: "repo",
+      number: 123,
+      url: "https://github.com/upstream/repo/issues/123",
     }));
-    expect(result).toMatchObject({
-      created: true,
-      issue: { owner: "o", repo: "r", number: 12, htmlUrl: "https://github.com/o/r/issues/12" },
+    expect(recordActivity).toHaveBeenCalledWith(expect.objectContaining({
+      metadata: expect.objectContaining({ type: "github-issue-source-linked", repo: "upstream/repo", number: 123 }),
+    }));
+  });
+
+  it("constructs sourceIssue URL when sourceIssue.url is missing", async () => {
+    const linkGithubIssue = vi.fn();
+
+    const result = await maybeCreateTrackingIssue(buildTask({
+      sourceIssue: {
+        provider: "github",
+        repository: "upstream/repo",
+        externalIssueId: "987",
+        issueNumber: 987,
+      },
+      githubTracking: { enabled: true },
+    }), {
+      taskStore: { linkGithubIssue, recordActivity: vi.fn() } as any,
+      projectSettings: {},
+      globalSettings: { githubTrackingDefaultRepo: "o/r" } as any,
+      rootDir,
+      logger: { warn: vi.fn(), info: vi.fn() },
     });
-    expect(linkGithubIssue).toHaveBeenCalledWith("FN-1", expect.objectContaining({ owner: "o", repo: "r", number: 12 }));
-    expect(recordActivity).toHaveBeenCalled();
+
+    expect(result).toEqual({ created: false, reason: "source_issue_linked" });
+    expect(linkGithubIssue).toHaveBeenCalledWith("FN-1", expect.objectContaining({
+      url: "https://github.com/upstream/repo/issues/987",
+    }));
+    expect(createIssueMock).not.toHaveBeenCalled();
+  });
+
+  it("falls through to normal create path when sourceIssue provider is non-github", async () => {
+    const result = await maybeCreateTrackingIssue(buildTask({
+      title: "Imported issue follow-up",
+      description: "Short body",
+      sourceIssue: {
+        provider: "gitlab",
+        repository: "group/project",
+        externalIssueId: "321",
+        issueNumber: 321,
+      },
+      githubTracking: { enabled: true },
+    }), {
+      taskStore: { linkGithubIssue: vi.fn(), recordActivity: vi.fn() } as any,
+      projectSettings: {},
+      globalSettings: { githubTrackingDefaultRepo: "o/r" } as any,
+      rootDir,
+      logger: { warn: vi.fn(), info: vi.fn() },
+    });
+
+    expect(result).toMatchObject({ created: true });
+    expect(createIssueMock).toHaveBeenCalledTimes(1);
+  });
+
+  it("falls through to normal create path when sourceIssue repository slug is invalid", async () => {
+    const result = await maybeCreateTrackingIssue(buildTask({
+      title: "Imported issue follow-up",
+      description: "Short body",
+      sourceIssue: {
+        provider: "github",
+        repository: "invalidslug",
+        externalIssueId: "222",
+        issueNumber: 222,
+      },
+      githubTracking: { enabled: true },
+    }), {
+      taskStore: { linkGithubIssue: vi.fn(), recordActivity: vi.fn() } as any,
+      projectSettings: {},
+      globalSettings: { githubTrackingDefaultRepo: "o/r" } as any,
+      rootDir,
+      logger: { warn: vi.fn(), info: vi.fn() },
+    });
+
+    expect(result).toMatchObject({ created: true });
+    expect(createIssueMock).toHaveBeenCalledTimes(1);
   });
 
   it("uses the AI summarizer when the title is missing and a summarizer model is configured", async () => {

packages/dashboard/src/github-tracking.ts

@@ -1,6 +1,7 @@
 import {
   AiServiceError,
   MIN_DESCRIPTION_LENGTH,
+  parseRepoSlug,
   resolveTaskGithubTracking,
   summarizeTitle,
   type GlobalSettings,
@@ -152,6 +153,7 @@ export type MaybeCreateTrackingIssueReason =
   | "no_repo_configured"
   | "no_title_available"
   | "existing_issue_found"
+  | "source_issue_linked"
   | "github_error"
   | "auth_token_missing"
   | "auth_gh_not_installed"
@@ -227,6 +229,36 @@ export async function maybeCreateTrackingIssue(
     });
   }
 
+  const sourceIssue = latestTask.sourceIssue;
+  if (sourceIssue?.provider === "github") {
+    const sourceRepo = parseRepoSlug(sourceIssue.repository);
+    if (sourceRepo && Number.isFinite(sourceIssue.issueNumber)) {
+      const url = sourceIssue.url
+        ?? `https://github.com/${sourceRepo.owner}/${sourceRepo.repo}/issues/${sourceIssue.issueNumber}`;
+      const createdAt = new Date().toISOString();
+      await deps.taskStore.linkGithubIssue(task.id, {
+        owner: sourceRepo.owner,
+        repo: sourceRepo.repo,
+        number: sourceIssue.issueNumber,
+        url,
+        createdAt,
+      });
+      await deps.taskStore.recordActivity({
+        type: "task:updated",
+        taskId: task.id,
+        taskTitle: latestTask.title,
+        details: `Linked source issue ${sourceRepo.owner}/${sourceRepo.repo}#${sourceIssue.issueNumber}`,
+        metadata: {
+          type: "github-issue-source-linked",
+          repo: `${sourceRepo.owner}/${sourceRepo.repo}`,
+          number: sourceIssue.issueNumber,
+          htmlUrl: url,
+        },
+      });
+      return { created: false, reason: "source_issue_linked" };
+    }
+  }
+
   const repo = resolvedTracking.repo;
 
   if (!repo) {