Backup: nur Settings als Default + 4 Selektions/Flicker-Bugfixes

Backup:
- Neues Setting backupIncludeDownloads (Default aus) — Backup sichert
  standardmaessig NUR Einstellungen, nicht die Download-Liste/History.
- buildBackupPayload/planBackupImport (testbare backup-payload.ts): Export
  omittet session+history wenn Flag aus (explizites kind-Marker); Import folgt
  dem FILE-Inhalt, nicht dem lokalen Toggle.
- importBackup: settings-only -> frueher Return nach setSettings, KEIN stop/
  Queue-Wipe/Relaunch. Return {restored,relaunch,message}; main.ts gated den
  Auto-Relaunch auf relaunch. Renderer re-seeded settingsDraft bei !relaunch.

Bugfixes:
- Ctrl+A waehlte das ungefilterte Paket-Map -> Loeschen nach Suche traf
  versteckte Pakete. Jetzt visibleOrderIds (sichtbare Zeilen, inkl. Items).
- selectedIds nie geprunt bei Delta-Removal -> aufgeblaehte Counts. Neue pure
  pruneSelection (selection.ts) + Effect.
- link-status-dot conditional -> Dateiname sprang ~14px. Platzhalter-Slot.
- sortPackagesForDisplay sortierte aktive Pakete nach Live-Progress -> Reshuffle
  pro Tick. Jetzt stabile Queue-Reihenfolge je Gruppe (Anti-Flicker).

+17 Tests (backup-payload 9, selection 5, package-order anti-flicker 3).

tests/backup-payload.test.ts

@@ -0,0 +1,81 @@
+import { describe, expect, it } from "vitest";
+import { buildBackupPayload, planBackupImport } from "../src/main/backup-payload";
+import type { AppSettings, SessionState, HistoryEntry } from "../src/shared/types";
+
+function settings(overrides: Partial<AppSettings> = {}): AppSettings {
+  return { backupIncludeDownloads: false, token: "secret", outputDir: "C:\\dl" } as unknown as AppSettings;
+}
+
+const session: SessionState = {
+  version: 2, packageOrder: ["p1"], packages: { p1: {} as never }, items: { i1: {} as never },
+  runStartedAt: 0, totalDownloadedBytes: 0, summaryText: "", reconnectUntil: 0,
+  reconnectReason: "", paused: false, running: true, updatedAt: 0
+};
+const history: HistoryEntry[] = [{ id: "h1" } as unknown as HistoryEntry];
+
+const baseInput = { appVersion: "1.7.183", exportedAt: "2026-06-07T00:00:00Z", session, history };
+
+describe("buildBackupPayload — default is settings-only", () => {
+  it("omits session AND history when backupIncludeDownloads is false (default)", () => {
+    const p = buildBackupPayload({ ...baseInput, settings: { backupIncludeDownloads: false } as AppSettings });
+    expect(p.kind).toBe("settings-only");
+    expect(p.session).toBeUndefined();
+    expect(p.history).toBeUndefined();
+    expect(p.settings).toBeDefined();
+  });
+
+  it("includes session + history when backupIncludeDownloads is true", () => {
+    const p = buildBackupPayload({ ...baseInput, settings: { backupIncludeDownloads: true } as AppSettings });
+    expect(p.kind).toBe("full");
+    expect(p.session).toBe(session);
+    expect(p.history).toBe(history);
+  });
+
+  it("treats a missing flag as settings-only (safe default)", () => {
+    const p = buildBackupPayload({ ...baseInput, settings: {} as AppSettings });
+    expect(p.kind).toBe("settings-only");
+    expect(p.session).toBeUndefined();
+  });
+
+  it("ROUND-TRIP: toggle off -> exported payload carries the flag still false", () => {
+    // "Haken aus bleibt aus": the exported settings object preserves the flag,
+    // so importing it keeps the toggle off.
+    const p = buildBackupPayload({ ...baseInput, settings: { backupIncludeDownloads: false } as AppSettings });
+    expect((p.settings as AppSettings).backupIncludeDownloads).toBe(false);
+  });
+});
+
+describe("planBackupImport — decision follows the file, not the local toggle", () => {
+  it("settings-only backup (no session) -> restore settings only, no relaunch", () => {
+    const plan = planBackupImport({ version: 2, kind: "settings-only", settings: { theme: "dark" } });
+    expect(plan.valid).toBe(true);
+    expect(plan.restoreDownloads).toBe(false);
+    expect(plan.message).toMatch(/Einstellungen/);
+  });
+
+  it("full backup (with session) -> restore downloads + relaunch", () => {
+    const plan = planBackupImport({ version: 2, kind: "full", settings: { theme: "dark" }, session });
+    expect(plan.valid).toBe(true);
+    expect(plan.restoreDownloads).toBe(true);
+  });
+
+  it("rejects payloads without settings", () => {
+    expect(planBackupImport({ session }).valid).toBe(false);
+    expect(planBackupImport(null).valid).toBe(false);
+    expect(planBackupImport("nope").valid).toBe(false);
+    expect(planBackupImport({}).valid).toBe(false);
+  });
+
+  it("a settings-only export then import does NOT pull in the download list", () => {
+    // Build with toggle off, then plan the import of exactly that payload.
+    const exported = buildBackupPayload({ ...baseInput, settings: { backupIncludeDownloads: false } as AppSettings });
+    const plan = planBackupImport(JSON.parse(JSON.stringify(exported)));
+    expect(plan.restoreDownloads).toBe(false); // queue stays untouched
+  });
+
+  it("a full export then import DOES restore the download list", () => {
+    const exported = buildBackupPayload({ ...baseInput, settings: { backupIncludeDownloads: true } as AppSettings });
+    const plan = planBackupImport(JSON.parse(JSON.stringify(exported)));
+    expect(plan.restoreDownloads).toBe(true);
+  });
+});

tests/package-order.test.ts

@@ -44,23 +44,50 @@ function createItem(id: string, packageId: string, status: DownloadItem["status"
 }
 
 describe("sortPackagesForDisplay", () => {
-  it("moves active packages with more progress to the top when auto sort is enabled", () => {
+  it("floats active packages to the top, keeping queue order within each group", () => {
+    // pkg-a and pkg-b both have an active (downloading) item -> both float up in
+    // their original queue order; pkg-c (queued only) sinks below.
     const packages = [
       createPackage("pkg-a", ["a1", "a2"]),
-      createPackage("pkg-b", ["b1", "b2"]),
-      createPackage("pkg-c", ["c1"])
+      createPackage("pkg-c", ["c1"]),
+      createPackage("pkg-b", ["b1", "b2"])
     ];
     const items: Record<string, DownloadItem> = {
       a1: createItem("a1", "pkg-a", "downloading", 250),
       a2: createItem("a2", "pkg-a", "completed", 500),
+      c1: createItem("c1", "pkg-c", "queued", 0),
       b1: createItem("b1", "pkg-b", "downloading", 800),
-      b2: createItem("b2", "pkg-b", "completed", 900),
-      c1: createItem("c1", "pkg-c", "queued", 0)
+      b2: createItem("b2", "pkg-b", "completed", 900)
     };
 
     const sorted = sortPackagesForDisplay(packages, items, true, true);
 
-    expect(sorted.map((pkg) => pkg.id)).toEqual(["pkg-b", "pkg-a", "pkg-c"]);
+    // active group [pkg-a, pkg-b] in queue order, then rest [pkg-c]
+    expect(sorted.map((pkg) => pkg.id)).toEqual(["pkg-a", "pkg-b", "pkg-c"]);
+  });
+
+  it("does NOT reshuffle active packages when only their progress changes (anti-flicker)", () => {
+    const packages = [
+      createPackage("pkg-a", ["a1"]),
+      createPackage("pkg-b", ["b1"])
+    ];
+    // Both active. pkg-b initially has more bytes than pkg-a.
+    const before: Record<string, DownloadItem> = {
+      a1: createItem("a1", "pkg-a", "downloading", 100),
+      b1: createItem("b1", "pkg-b", "downloading", 900)
+    };
+    const orderBefore = sortPackagesForDisplay(packages, before, true, true).map((p) => p.id);
+
+    // A progress tick: pkg-a overtakes pkg-b in bytes. Order must NOT change —
+    // both are still active, so they keep queue order. (Old code swapped them.)
+    const after: Record<string, DownloadItem> = {
+      a1: createItem("a1", "pkg-a", "downloading", 5000),
+      b1: createItem("b1", "pkg-b", "downloading", 950)
+    };
+    const orderAfter = sortPackagesForDisplay(packages, after, true, true).map((p) => p.id);
+
+    expect(orderBefore).toEqual(["pkg-a", "pkg-b"]);
+    expect(orderAfter).toEqual(orderBefore);
   });
 
   it("keeps package order untouched when auto sort is disabled", () => {

tests/selection.test.ts

@@ -0,0 +1,44 @@
+import { describe, expect, it } from "vitest";
+import { pruneSelection } from "../src/renderer/selection";
+import type { SessionState } from "../src/shared/types";
+
+function session(packageIds: string[], itemIds: string[]): Pick<SessionState, "packages" | "items"> {
+  const packages: Record<string, never> = {};
+  const items: Record<string, never> = {};
+  for (const id of packageIds) packages[id] = {} as never;
+  for (const id of itemIds) items[id] = {} as never;
+  return { packages, items };
+}
+
+describe("pruneSelection", () => {
+  it("drops ids whose package/item no longer exists", () => {
+    const sel = new Set(["p1", "i1", "ghost-p", "ghost-i"]);
+    const next = pruneSelection(sel, session(["p1"], ["i1"]));
+    expect([...next].sort()).toEqual(["i1", "p1"]);
+  });
+
+  it("returns the SAME set instance when nothing changed (no needless re-render)", () => {
+    const sel = new Set(["p1", "i1"]);
+    const next = pruneSelection(sel, session(["p1"], ["i1"]));
+    expect(next).toBe(sel);
+  });
+
+  it("returns the same instance for an empty selection", () => {
+    const sel = new Set<string>();
+    expect(pruneSelection(sel, session(["p1"], ["i1"]))).toBe(sel);
+  });
+
+  it("prunes everything when the whole session was swapped out", () => {
+    const sel = new Set(["p1", "i1"]);
+    const next = pruneSelection(sel, session([], []));
+    expect(next.size).toBe(0);
+    expect(next).not.toBe(sel);
+  });
+
+  it("keeps a mixed package+item selection when both survive", () => {
+    const sel = new Set(["p1", "p2", "i1"]);
+    const next = pruneSelection(sel, session(["p1", "p2"], ["i1", "i2"]));
+    expect([...next].sort()).toEqual(["i1", "p1", "p2"]);
+    expect(next).toBe(sel); // unchanged → same instance
+  });
+});