refactor(web): extract shared API client factory, fix types, use crypto.randomUUID

- Created api-helpers.ts with shared getAccessToken() + createNotesApiClient()
- Removed duplicate API client factory from notes-client.ts, review-client.ts,
  saved-views-client.ts (3 copies → 1 shared module)
- Added reviewedBy/reviewedAt/reviewNote fields to review-client NoteAgentActionDoc
  type to match backend response shape
- Search page: use crypto.randomUUID() for saved view IDs instead of Date.now()
  to prevent collisions on rapid saves

Verification: web typecheck + 6/6 tests pass.

web/src/app/(app)/search/page.tsx

@@ -46,7 +46,7 @@ export default function SearchPage() {
     if (!query.trim()) return;
     try {
       const view = await createSavedView({
-        id: `sv-${Date.now()}`,
+        id: crypto.randomUUID(),
         name: query.trim().slice(0, 60),
         scope: "search",
         query: query.trim(),

web/src/lib/api-helpers.ts

@@ -0,0 +1,20 @@
+import { createApiClient } from "@bytelyst/api-client";
+import { NOTES_API_URL, PRODUCT_ID } from "@/lib/product-config";
+
+export function getAccessToken(): string | null {
+  if (typeof window === "undefined") {
+    return null;
+  }
+
+  return localStorage.getItem(`${PRODUCT_ID}_access_token`);
+}
+
+export function createNotesApiClient() {
+  return createApiClient({
+    baseUrl: NOTES_API_URL,
+    getToken: getAccessToken,
+    defaultHeaders: {
+      "x-product-id": PRODUCT_ID,
+    },
+  });
+}

web/src/lib/notes-client.ts

@@ -1,6 +1,6 @@
-import { createApiClient } from "@bytelyst/api-client";
 import { extractSuggestedTasks } from "@/lib/extraction-client";
-import { NOTES_API_URL, PRODUCT_ID } from "@/lib/product-config";
+import { PRODUCT_ID } from "@/lib/product-config";
+import { createNotesApiClient } from "@/lib/api-helpers";
 import type { AgentTimelineItem, ArtifactSummary, LinkedNote, NoteDetail, NoteSummary, NoteTask, WorkspaceSummary } from "@/lib/types";
 
 type NoteDoc = {
@@ -90,23 +90,6 @@ type NoteRelationshipListResponse = {
   items: NoteRelationshipDoc[];
 };
 
-function getAccessToken(): string | null {
-  if (typeof window === "undefined") {
-    return null;
-  }
-
-  return localStorage.getItem(`${PRODUCT_ID}_access_token`);
-}
-
-function createNotesApiClient() {
-  return createApiClient({
-    baseUrl: NOTES_API_URL,
-    getToken: getAccessToken,
-    defaultHeaders: {
-      "x-product-id": PRODUCT_ID,
-    },
-  });
-}
 
 function buildWorkspaceMap(workspaces: WorkspaceDoc[]) {
   return new Map(workspaces.map((workspace) => [workspace.id, workspace]));

web/src/lib/review-client.ts

@@ -1,5 +1,4 @@
-import { createApiClient } from "@bytelyst/api-client";
-import { NOTES_API_URL, PRODUCT_ID } from "@/lib/product-config";
+import { createNotesApiClient } from "@/lib/api-helpers";
 import type { AgentTimelineItem, ApprovalQueueItem } from "@/lib/types";
 import { listWorkspaceSummaries } from "@/lib/notes-client";
 
@@ -15,6 +14,9 @@ type NoteAgentActionDoc = {
   reason?: string;
   beforeSummary?: string;
   afterSummary?: string;
+  reviewedBy?: string;
+  reviewedAt?: string;
+  reviewNote?: string;
   updatedAt: string;
 };
 
@@ -22,23 +24,6 @@ type NoteAgentActionListResponse = {
   items: NoteAgentActionDoc[];
 };
 
-function getAccessToken(): string | null {
-  if (typeof window === "undefined") {
-    return null;
-  }
-
-  return localStorage.getItem(`${PRODUCT_ID}_access_token`);
-}
-
-function createNotesApiClient() {
-  return createApiClient({
-    baseUrl: NOTES_API_URL,
-    getToken: getAccessToken,
-    defaultHeaders: {
-      "x-product-id": PRODUCT_ID,
-    },
-  });
-}
 
 function toSeverity(actionType: NoteAgentActionDoc["actionType"]): ApprovalQueueItem["severity"] {
   if (actionType === "update" || actionType === "extract_tasks") {

web/src/lib/saved-views-client.ts

@@ -1,7 +1,6 @@
 "use client";
 
-import { createApiClient } from "@bytelyst/api-client";
-import { NOTES_API_URL, PRODUCT_ID } from "@/lib/product-config";
+import { createNotesApiClient } from "@/lib/api-helpers";
 
 export interface SavedView {
   id: string;
@@ -20,19 +19,6 @@ interface SavedViewListResponse {
   total: number;
 }
 
-function getAccessToken(): string | null {
-  if (typeof window === "undefined") return null;
-  return localStorage.getItem(`${PRODUCT_ID}_access_token`);
-}
-
-function createNotesApiClient() {
-  return createApiClient({
-    baseUrl: NOTES_API_URL,
-    getToken: getAccessToken,
-    defaultHeaders: { "x-product-id": PRODUCT_ID },
-  });
-}
-
 export async function listSavedViews(scope?: SavedView["scope"]): Promise<SavedView[]> {
   const api = createNotesApiClient();
   const params = new URLSearchParams();