refactor(query-keys): expand factory and migrate auth, notifications, about

Routes the registration-status, auth invalidation, notifications
preferences, and Settings about-section api-version reads through
the centralised queryKeys factory. Adds factory entries for the
remaining settings/admin surfaces a follow-up will migrate, and
extends the walker test to fail on any future bare-literal
queryKey in src/app/auth, src/app/notifications, and the
about-section. Also swaps the dashboard tile Suspense fallback
from null to a layout-stable card placeholder so a future RSC
hoist of any tile slot can't trigger CLS.

src/lib/__tests__/query-keys.test.ts

@@ -49,6 +49,25 @@ describe("queryKeys factory", () => {
     expect(queryKeys.userThresholds()).toEqual(["user", "thresholds"]);
   });
 
+  // v1.4.41 W-FRONTEND-FACTORY — pin the shapes that auth/login + the
+  // notifications surface migrated to so a future rename can't drift
+  // the cache layout silently.
+  it("exposes auth + notifications keys for the factory-migrated surfaces", () => {
+    expect(queryKeys.authRegistrationStatus()).toEqual([
+      "auth",
+      "registration-status",
+    ]);
+    expect(queryKeys.notificationsPreferences()).toEqual([
+      "notifications",
+      "preferences",
+    ]);
+    expect(queryKeys.notificationsStatus()).toEqual([
+      "notifications",
+      "status",
+    ]);
+    expect(queryKeys.apiVersion()).toEqual(["api", "version"]);
+  });
+
   it("packs chartData params into a stable tuple prefixed by chart-data", () => {
     const key = queryKeys.chartData(
       "WEIGHT",
@@ -175,6 +194,12 @@ describe("queryKey factory enforcement", () => {
     join(repoRoot, "src", "components", "comparison"),
     join(repoRoot, "src", "app", "page.tsx"),
     join(repoRoot, "src", "hooks", "use-auth.ts"),
+    // v1.4.41 W-FRONTEND-FACTORY — auth, notifications, and the
+    // about-section migrated to the factory. Future waves extend
+    // this list as they migrate their own surface.
+    join(repoRoot, "src", "app", "auth"),
+    join(repoRoot, "src", "app", "notifications"),
+    join(repoRoot, "src", "components", "settings", "about-section.tsx"),
   ];
 
   function collect(): string[] {

src/lib/query-keys.ts

@@ -93,9 +93,56 @@ export const queryKeys = {
   passkeys: () => ["passkeys"] as const,
 
   notificationsPreferences: () => ["notifications", "preferences"] as const,
+  notificationsStatus: () => ["notifications", "status"] as const,
 
   settingsGlobalServices: () => ["settings", "global-services"] as const,
   settingsNtfy: () => ["settings", "ntfy"] as const,
+  settingsReminderThresholds: () =>
+    ["settings", "reminder-thresholds"] as const,
+
+  /**
+   * v1.4.41 W-FRONTEND-FACTORY — Settings → AI surfaces (provider chain,
+   * insights settings, user provider preference) and the targets editor
+   * all read these endpoints; centralising the keys keeps invalidation
+   * symmetrical with the user-thresholds + auth surfaces.
+   */
+  insightsSettings: () => ["insights", "settings"] as const,
+  insightsProviderChain: () => ["insights", "provider-chain"] as const,
+  insightsGlp1Timeline: (limit: number | string) =>
+    ["insights", "glp1-timeline", limit] as const,
+  userAiProvider: () => ["user", "ai-provider"] as const,
+  userProfile: () => ["user", "profile"] as const,
+
+  apiVersion: () => ["api", "version"] as const,
+  publicVersion: () => ["public", "version"] as const,
+  researchMode: () => ["research-mode"] as const,
+  moodlogStatus: () => ["moodlog-status"] as const,
+  integrationsStatus: () => ["integrations", "status"] as const,
+  featureFlags: () => ["feature-flags"] as const,
+  coachPrefs: () => ["coach-prefs"] as const,
+
+  /**
+   * v1.4.41 — admin surfaces. Pre-fix every admin section declared its
+   * own bare-literal `["admin", "<name>"]`. Routing through the factory
+   * lets a single rename change every consumer in lockstep.
+   */
+  adminAiQuality: () => ["admin", "ai-quality"] as const,
+  adminAppLogs: (
+    traceId: string | undefined,
+    action: string | undefined,
+    level: string | undefined,
+    range: string | undefined,
+  ) =>
+    ["admin", "app-logs", traceId, action, level, range] as const,
+  adminAssistantFlags: () => ["admin", "settings", "assistant-flags"] as const,
+  adminBackups: () => ["admin", "backups"] as const,
+  adminCoachFeedback: () => ["admin", "coach-feedback"] as const,
+  adminFeedback: (status: string) => ["admin", "feedback", status] as const,
+  adminFeedbackRoot: () => ["admin", "feedback"] as const,
+  adminHostMetrics: (window: string) =>
+    ["admin", "host-metrics", window] as const,
+  adminAuditActions: () => ["admin", "audit-log", "actions"] as const,
+  adminAuditOverview: () => ["admin", "audit-log", "overview-preview"] as const,
 
   tokens: () => ["tokens"] as const,
   telegram: () => ["telegram"] as const,