fix(engine): use aggregate repo-stat issues for cache-only outcome totals

src/signals/engine.ts

@@ -1540,8 +1540,11 @@ export function buildContributorOutcomeHistory(args: {
       const mergedPullRequests = official?.mergedPullRequests ?? Math.max(cachedPrs.filter((pr) => pr.mergedAt || pr.state === "merged").length, cachedStat?.mergedPullRequests ?? 0);
       const openPullRequests = official?.openPullRequests ?? Math.max(cachedPrs.filter((pr) => pr.state === "open").length, cachedStat?.openPullRequests ?? 0);
       const closedPullRequests = official?.closedPullRequests ?? Math.max(cachedPrs.filter((pr) => pr.state === "closed" && !pr.mergedAt).length, pullRequests - mergedPullRequests - openPullRequests, 0);
-      const openIssues = official?.openIssues ?? cachedIssues.filter((issue) => issue.state === "open").length;
-      const closedIssues = official?.closedIssues ?? cachedIssues.filter((issue) => issue.state !== "open").length;
+      const openIssueRows = cachedIssues.filter((issue) => issue.state === "open").length;
+      const closedIssueRows = cachedIssues.filter((issue) => issue.state !== "open").length;
+      const cachedIssueCount = Math.max(cachedIssues.length, cachedStat?.issues ?? 0);
+      const openIssues = official?.openIssues ?? openIssueRows;
+      const closedIssues = official?.closedIssues ?? Math.max(closedIssueRows, cachedIssueCount - openIssueRows, 0);
       // Like every field above, issue-discovery solved counts fall back to cache (the issue
       // lifecycle), not a literal 0, when official Gittensor data is absent for this repo.
       const laneAdvice = buildLaneAdvice(repo, repoFullName);

test/unit/signals-v2.test.ts

@@ -807,6 +807,29 @@ describe("v2 signal builders", () => {
     expect(t.openPullRequests).toBe(1); // the stranger's 5 open PRs are excluded
   });
 
+  it("uses aggregate repo-stat issues for cache-only outcome totals when issue rows are absent", () => {
+    const docsRepo: RepositoryRecord = {
+      fullName: "acme/docs",
+      owner: "acme",
+      name: "docs",
+      isInstalled: true,
+      isRegistered: true,
+      isPrivate: false,
+      defaultBranch: "main",
+      registryConfig: { repo: "acme/docs", emissionShare: 0.02, issueDiscoveryShare: 0, labelMultipliers: {}, trustedLabelPipeline: false, maintainerCut: 0, raw: {} },
+    };
+    const repoStats: ContributorRepoStatRecord[] = [
+      { login: "statdev", repoFullName: "acme/docs", pullRequests: 0, mergedPullRequests: 0, openPullRequests: 0, issues: 7, stalePullRequests: 0, unlinkedPullRequests: 0, dominantLabels: ["docs"] },
+    ];
+    const profile = buildContributorProfile("statdev", { login: "statdev", topLanguages: ["Markdown"], source: "github" }, [], [], repoStats);
+    const history = buildContributorOutcomeHistory({ login: "statdev", profile, repositories: [docsRepo], pullRequests: [], issues: [], repoStats });
+
+    expect(profile.registeredRepoActivity.issues).toBe(7);
+    expect(history.repoOutcomes.find((entry) => entry.repoFullName === "acme/docs")).toMatchObject({ issues: 7, openIssues: 0, closedIssues: 7 });
+    expect(history.totals).toMatchObject({ issues: 7, openIssues: 0, closedIssues: 7 });
+    expect(history.reconciliation?.repos.find((entry) => entry.repoFullName === "acme/docs")?.cached).toMatchObject({ issues: 7, openIssues: 0, closedIssues: 7 });
+  });
+
   it("derives solved and valid-solved issue-discovery counts from cache when official data is absent", () => {
     const mkRepo = (fullName: string, issueDiscoveryShare: number): RepositoryRecord => {
       const [owner, name] = fullName.split("/") as [string, string];