fix: harden archive metrics and result retention

Derive archive operation identity from item-path provenance so equal basenames in different directories remain distinct, and keep unknown part counts at zero when no item provenance exists.

Prune finalized results only after their generation is no longer current or referenced, and add 80-package digest and individual delivery coverage to prove deterministic paging without event loss.

tests/download-manager.test.ts

@@ -15114,6 +15114,65 @@ describe("package priority ordering", () => {
 });
 
 describe("package lifecycle telemetry boundaries", () => {
+  it("uses item-path provenance for archive identity and leaves unknown part counts at zero", () => {
+    const root = fs.mkdtempSync(path.join(os.tmpdir(), "rd-archive-identity-"));
+    tempDirs.push(root);
+    const session = emptySession();
+    const manager = new DownloadManager(defaultSettings(), session, createStoragePaths(path.join(root, "state")));
+    const pkg: PackageEntry = {
+      id: "archive-identity-package",
+      name: "Archive identity",
+      outputDir: path.join(root, "downloads"),
+      extractDir: path.join(root, "extract"),
+      status: "completed" as const,
+      itemIds: ["item-a", "item-b"],
+      cancelled: false,
+      enabled: true,
+      createdAt: 1_000,
+      updatedAt: 1_000
+    };
+    const item = (id: string, directory: string) => ({
+      id,
+      packageId: pkg.id,
+      url: `https://example.test/${id}`,
+      provider: "realdebrid" as const,
+      status: "completed" as const,
+      retries: 0,
+      speedBps: 0,
+      downloadedBytes: 1,
+      totalBytes: 1,
+      progressPercent: 100,
+      fileName: "episode.rar",
+      targetPath: path.join(pkg.outputDir, directory, "episode.rar"),
+      resumable: true,
+      attempts: 1,
+      lastError: "",
+      fullStatus: "Fertig",
+      createdAt: 1_000,
+      updatedAt: 1_000
+    });
+    const progress = (current: number) => ({
+      current,
+      total: 3,
+      percent: 100,
+      archiveName: "episode.rar",
+      archivePercent: 100,
+      elapsedMs: 1_000,
+      archiveDone: true,
+      archiveSuccess: true
+    });
+    const state = manager as any;
+
+    state.recordArchiveOperation(pkg, progress(0), [item("item-a", "season-a")]);
+    state.recordArchiveOperation(pkg, progress(1), [item("item-b", "season-b")]);
+    state.recordArchiveOperation(pkg, { ...progress(2), archiveName: "unresolved.rar" }, []);
+
+    const operations = pkg.archiveOperations || [];
+    expect(operations).toHaveLength(3);
+    expect(new Set(operations.map((operation) => operation.id))).toHaveLength(3);
+    expect(operations.map((operation) => operation.partCount)).toEqual([1, 1, 0]);
+  });
+
   it("records queued, slot start and terminal timestamps around real post-processing", async () => {
     const root = fs.mkdtempSync(path.join(os.tmpdir(), "rd-lifecycle-boundaries-"));
     tempDirs.push(root);

tests/notify-hooks.test.ts

@@ -348,6 +348,30 @@ describe("authoritative package completion", () => {
     expect(events.map((event) => event.type)).toEqual(["package_completed"]);
     expect(events[0].payload.title).toContain("Paket-Digest");
   });
+
+  it.each([
+    ["digest", 4],
+    ["individual", 80]
+  ] as const)("delivers 80 successful packages in %s mode without loss", async (mode, expectedEvents) => {
+    const { manager, session, events } = setup({ notifyPackageSuccessMode: mode });
+    const state = internal(manager);
+    for (let index = 0; index < 80; index += 1) {
+      const pkg = addPackage(session, ["completed"], `bulk-package-${String(index).padStart(2, "0")}`);
+      state.runPackageIds.add(pkg.id);
+      state.tryFinalizePackageResult(pkg.id);
+    }
+    if (mode === "digest") {
+      state.flushPackageSuccessDigest();
+    }
+    await state.notificationEnqueueChain;
+
+    expect(events).toHaveLength(expectedEvents);
+    expect(new Set(events.map((event) => event.id))).toHaveLength(expectedEvents);
+    if (mode === "digest") {
+      expect(events.map((event) => event.payload.fields.length)).toEqual([20, 20, 20, 20]);
+      expect(events.every((event) => event.payload.description === "80 Pakete abgeschlossen")).toBe(true);
+    }
+  });
 });
 
 describe("authoritative run completion", () => {
@@ -595,6 +619,7 @@ describe("authoritative run completion", () => {
     expect(completedRun?.payload.fields.some((field) => field.name === "Dateien" && field.value === "1 erfolgreich · 0 fehlgeschlagen · 0 abgebrochen")).toBe(true);
     expect(history).toHaveLength(1);
     expect(history[0].id).toBe(`hist-${pkg.id}-2`);
+    expect([...state.finalizedPackageResults.keys()].filter((key) => key.startsWith(`${pkg.id}:`))).toEqual([`${pkg.id}:2`]);
   });
 
   it("tracks a main postprocess task created by triggerPendingExtractions after start begins", async () => {