feat(web): saved views CRUD, keyboard shortcuts, debounced search

- saved-views-client.ts: full CRUD client for backend saved-views module
- use-keyboard-shortcuts.ts: reusable hook for global keyboard shortcuts
- KeyboardShortcuts.tsx: wired into (app) layout — Cmd+K search, Cmd+N workspaces, Cmd+Shift+D dashboard, Cmd+Shift+R reviews, Esc blur
- use-debounce.ts: shared debounce hook (replaces inline setTimeout in search)
- Search page: saved views loaded from backend with save/delete UI
- Search page: search debounced at 250ms via useDebounce hook
- Updated search page test to mock saved-views-client and useDebounce

Verification: web typecheck + 6/6 tests pass.

web/src/app/(app)/layout.tsx

@@ -1,5 +1,11 @@
 import type { ReactNode } from "react";
+import { KeyboardShortcuts } from "@/components/KeyboardShortcuts";
 
 export default function ProductLayout({ children }: { children: ReactNode }) {
-  return children;
+  return (
+    <>
+      <KeyboardShortcuts />
+      {children}
+    </>
+  );
 }

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

@@ -3,6 +3,7 @@ import { describe, expect, it, vi } from "vitest";
 import SearchPage from "./page";
 
 const searchNoteSummariesMock = vi.fn();
+const listSavedViewsMock = vi.fn();
 
 vi.mock("next/link", () => ({
   default: ({ href, children, ...props }: React.ComponentProps<"a"> & { href: string }) => (
@@ -16,8 +17,21 @@ vi.mock("@/lib/notes-client", () => ({
   searchNoteSummaries: () => searchNoteSummariesMock(),
 }));
 
+vi.mock("@/lib/saved-views-client", () => ({
+  listSavedViews: () => listSavedViewsMock(),
+  createSavedView: vi.fn(async () => ({})),
+  deleteSavedView: vi.fn(async () => undefined),
+}));
+
+vi.mock("@/lib/use-debounce", () => ({
+  useDebounce: (value: unknown) => value,
+}));
+
 describe("SearchPage", () => {
   it("renders an accessible search field, saved searches, and note links", async () => {
+    listSavedViewsMock.mockResolvedValue([
+      { id: "sv-1", name: "Launch readiness", scope: "search", query: "tag:launch", createdAt: "", updatedAt: "", sortOrder: 0 },
+    ]);
     searchNoteSummariesMock.mockResolvedValue([
       {
         id: "note-prd-cutline",
@@ -36,7 +50,7 @@ describe("SearchPage", () => {
     expect(screen.getByRole("heading", { level: 1, name: "Search" })).toBeInTheDocument();
     expect(screen.getByRole("textbox", { name: "Search notes" })).toBeInTheDocument();
     expect(screen.getByText("Saved searches")).toBeInTheDocument();
-    expect(screen.getByText("Launch readiness")).toBeInTheDocument();
+    expect(await screen.findByText("Launch readiness")).toBeInTheDocument();
     expect(await screen.findByRole("link", { name: /MVP cut line for agentic notes launch/i })).toHaveAttribute(
       "href",
       "/notes/note-prd-cutline"

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

@@ -2,15 +2,19 @@
 
 import Link from "next/link";
 import { useSearchParams } from "next/navigation";
-import { useEffect, useState } from "react";
+import { useCallback, useEffect, useMemo, useState } from "react";
 import { AppShell } from "@/components/AppShell";
 import { searchNoteSummaries } from "@/lib/notes-client";
+import { listSavedViews, createSavedView, deleteSavedView, type SavedView } from "@/lib/saved-views-client";
+import { useDebounce } from "@/lib/use-debounce";
 import type { NoteSummary } from "@/lib/types";
 
 export default function SearchPage() {
   const searchParams = useSearchParams();
   const [notes, setNotes] = useState<NoteSummary[]>([]);
   const [query, setQuery] = useState(() => searchParams?.get("q") ?? "");
+  const debouncedQuery = useDebounce(query, 250);
+  const [savedViewsList, setSavedViewsList] = useState<SavedView[]>([]);
   const [error, setError] = useState<string | null>(null);
 
   useEffect(() => {
@@ -18,40 +22,56 @@ export default function SearchPage() {
   }, [searchParams]);
 
   useEffect(() => {
-    const timeout = window.setTimeout(() => {
-      void (async () => {
-        try {
-          setNotes(await searchNoteSummaries(query));
-          setError(null);
-        } catch (err) {
-          setError(err instanceof Error ? err.message : "Unable to load notes");
-        }
-      })();
-    }, 150);
+    void (async () => {
+      try {
+        setNotes(await searchNoteSummaries(debouncedQuery));
+        setError(null);
+      } catch (err) {
+        setError(err instanceof Error ? err.message : "Unable to load notes");
+      }
+    })();
+  }, [debouncedQuery]);
 
-    return () => {
-      window.clearTimeout(timeout);
-    };
+  useEffect(() => {
+    void (async () => {
+      try {
+        setSavedViewsList(await listSavedViews("search"));
+      } catch {
+        // Saved views are best-effort
+      }
+    })();
+  }, []);
+
+  const handleSaveCurrentSearch = useCallback(async () => {
+    if (!query.trim()) return;
+    try {
+      const view = await createSavedView({
+        id: `sv-${Date.now()}`,
+        name: query.trim().slice(0, 60),
+        scope: "search",
+        query: query.trim(),
+      });
+      setSavedViewsList((current) => [...current, view]);
+    } catch {
+      // Best-effort
+    }
   }, [query]);
 
-  const savedViews = [
-    {
-      id: "search-launch-readiness",
-      name: "Launch readiness",
-      query: "tag:launch tag:mvp status:active",
-      resultCount: notes.filter(
-        (note) =>
-          note.status === "active" &&
-          note.tags.some((tag) => tag === "launch" || tag === "mvp")
-      ).length,
-    },
-    {
-      id: "search-drafts",
-      name: "Draft notes",
-      query: "status:draft",
-      resultCount: notes.filter((note) => note.status === "draft").length,
-    },
-  ];
+  const handleDeleteSavedView = useCallback(async (id: string) => {
+    try {
+      await deleteSavedView(id);
+      setSavedViewsList((current) => current.filter((v) => v.id !== id));
+    } catch {
+      // Best-effort
+    }
+  }, []);
+
+  const savedViews = useMemo(() => savedViewsList.map((view) => ({
+    id: view.id,
+    name: view.name,
+    query: view.query,
+    resultCount: 0,
+  })), [savedViewsList]);
 
   return (
     <AppShell
@@ -61,20 +81,44 @@ export default function SearchPage() {
     >
       <section style={{ display: "grid", gridTemplateColumns: "minmax(260px, 320px) minmax(0, 1fr)", gap: "var(--ml-space-4)" }}>
         <aside className="surface-card" style={{ padding: "var(--ml-space-5)", display: "grid", gap: "var(--ml-space-4)" }}>
-          <div style={{ fontWeight: 700 }}>Saved searches</div>
+          <div style={{ display: "flex", justifyContent: "space-between", alignItems: "center" }}>
+            <div style={{ fontWeight: 700 }}>Saved searches</div>
+            {query.trim() ? (
+              <button
+                type="button"
+                className="badge"
+                onClick={() => void handleSaveCurrentSearch()}
+                style={{ cursor: "pointer" }}
+              >
+                + Save current
+              </button>
+            ) : null}
+          </div>
           <div style={{ display: "grid", gap: "var(--ml-space-3)" }}>
             {savedViews.map((view) => (
-              <Link
+              <div
                 key={view.id}
-                href={`/search?q=${encodeURIComponent(view.query)}`}
                 className="surface-muted"
                 style={{ padding: "var(--ml-space-4)", display: "grid", gap: "var(--ml-space-2)" }}
               >
-                <strong>{view.name}</strong>
-                <span style={{ color: "var(--ml-text-secondary)" }}>{view.query}</span>
-                <span className="badge">{view.resultCount} results</span>
-              </Link>
+                <div style={{ display: "flex", justifyContent: "space-between", alignItems: "start" }}>
+                  <Link href={`/search?q=${encodeURIComponent(view.query)}`} style={{ display: "grid", gap: "var(--ml-space-2)" }}>
+                    <strong>{view.name}</strong>
+                    <span style={{ color: "var(--ml-text-secondary)" }}>{view.query}</span>
+                  </Link>
+                  <button
+                    type="button"
+                    onClick={() => void handleDeleteSavedView(view.id)}
+                    style={{ color: "var(--ml-text-secondary)", background: "none", border: "none", cursor: "pointer", fontSize: "0.75rem" }}
+                  >
+                    Remove
+                  </button>
+                </div>
+              </div>
             ))}
+            {savedViews.length === 0 ? (
+              <span style={{ color: "var(--ml-text-secondary)", fontSize: "0.875rem" }}>No saved searches yet.</span>
+            ) : null}
           </div>
 
           <div style={{ display: "grid", gap: "var(--ml-space-2)" }}>

web/src/components/KeyboardShortcuts.tsx

@@ -0,0 +1,53 @@
+"use client";
+
+import { useRouter } from "next/navigation";
+import { useMemo } from "react";
+import { useKeyboardShortcuts, type KeyboardShortcut } from "@/lib/use-keyboard-shortcuts";
+
+export function KeyboardShortcuts() {
+  const router = useRouter();
+
+  const shortcuts = useMemo<KeyboardShortcut[]>(
+    () => [
+      {
+        key: "k",
+        meta: true,
+        handler: () => router.push("/search"),
+        description: "Open search",
+      },
+      {
+        key: "n",
+        meta: true,
+        handler: () => router.push("/workspaces"),
+        description: "Open workspaces (new note)",
+      },
+      {
+        key: "d",
+        meta: true,
+        shift: true,
+        handler: () => router.push("/dashboard"),
+        description: "Go to dashboard",
+      },
+      {
+        key: "r",
+        meta: true,
+        shift: true,
+        handler: () => router.push("/reviews"),
+        description: "Go to reviews",
+      },
+      {
+        key: "Escape",
+        handler: () => {
+          const active = document.activeElement as HTMLElement | null;
+          active?.blur();
+        },
+        description: "Dismiss / blur",
+      },
+    ],
+    [router],
+  );
+
+  useKeyboardShortcuts(shortcuts);
+
+  return null;
+}

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

@@ -0,0 +1,79 @@
+"use client";
+
+import { createApiClient } from "@bytelyst/api-client";
+import { NOTES_API_URL, PRODUCT_ID } from "@/lib/product-config";
+
+export interface SavedView {
+  id: string;
+  name: string;
+  scope: "workspace" | "search" | "review";
+  description?: string;
+  query: string;
+  filters?: Record<string, string>;
+  sortOrder: number;
+  createdAt: string;
+  updatedAt: string;
+}
+
+interface SavedViewListResponse {
+  items: SavedView[];
+  total: number;
+}
+
+function getAccessToken(): string | null {
+  if (typeof window === "undefined") return null;
+  return localStorage.getItem(`${PRODUCT_ID}_access_token`);
+}
+
+function createNotesApiClient() {
+  return createApiClient({
+    baseUrl: NOTES_API_URL,
+    getToken: getAccessToken,
+    defaultHeaders: { "x-product-id": PRODUCT_ID },
+  });
+}
+
+export async function listSavedViews(scope?: SavedView["scope"]): Promise<SavedView[]> {
+  const api = createNotesApiClient();
+  const params = new URLSearchParams();
+  if (scope) params.set("scope", scope);
+  const response = await api.fetch<SavedViewListResponse>(`/saved-views?${params.toString()}`);
+  return response.items;
+}
+
+export async function getSavedView(id: string): Promise<SavedView> {
+  const api = createNotesApiClient();
+  return api.fetch<SavedView>(`/saved-views/${encodeURIComponent(id)}`);
+}
+
+export async function createSavedView(input: {
+  id: string;
+  name: string;
+  scope: SavedView["scope"];
+  description?: string;
+  query: string;
+  filters?: Record<string, string>;
+  sortOrder?: number;
+}): Promise<SavedView> {
+  const api = createNotesApiClient();
+  return api.fetch<SavedView>("/saved-views", {
+    method: "POST",
+    body: JSON.stringify(input),
+  });
+}
+
+export async function updateSavedView(
+  id: string,
+  updates: Partial<Pick<SavedView, "name" | "description" | "query" | "filters" | "sortOrder">>,
+): Promise<SavedView> {
+  const api = createNotesApiClient();
+  return api.fetch<SavedView>(`/saved-views/${encodeURIComponent(id)}`, {
+    method: "PATCH",
+    body: JSON.stringify(updates),
+  });
+}
+
+export async function deleteSavedView(id: string): Promise<void> {
+  const api = createNotesApiClient();
+  await api.fetch(`/saved-views/${encodeURIComponent(id)}`, { method: "DELETE" });
+}

web/src/lib/use-debounce.ts

@@ -0,0 +1,14 @@
+"use client";
+
+import { useEffect, useState } from "react";
+
+export function useDebounce<T>(value: T, delayMs: number): T {
+  const [debouncedValue, setDebouncedValue] = useState(value);
+
+  useEffect(() => {
+    const timer = setTimeout(() => setDebouncedValue(value), delayMs);
+    return () => clearTimeout(timer);
+  }, [value, delayMs]);
+
+  return debouncedValue;
+}

web/src/lib/use-keyboard-shortcuts.ts

@@ -0,0 +1,43 @@
+"use client";
+
+import { useEffect } from "react";
+
+export interface KeyboardShortcut {
+  key: string;
+  meta?: boolean;
+  shift?: boolean;
+  alt?: boolean;
+  handler: () => void;
+  description: string;
+}
+
+export function useKeyboardShortcuts(shortcuts: KeyboardShortcut[]) {
+  useEffect(() => {
+    function handleKeyDown(event: KeyboardEvent) {
+      const target = event.target as HTMLElement;
+      const isInputFocused =
+        target.tagName === "INPUT" ||
+        target.tagName === "TEXTAREA" ||
+        target.tagName === "SELECT" ||
+        target.isContentEditable;
+
+      for (const shortcut of shortcuts) {
+        const metaMatch = shortcut.meta ? event.metaKey || event.ctrlKey : !event.metaKey && !event.ctrlKey;
+        const shiftMatch = shortcut.shift ? event.shiftKey : !event.shiftKey;
+        const altMatch = shortcut.alt ? event.altKey : !event.altKey;
+        const keyMatch = event.key.toLowerCase() === shortcut.key.toLowerCase();
+
+        if (keyMatch && metaMatch && shiftMatch && altMatch) {
+          if (shortcut.key === "Escape" || !isInputFocused) {
+            event.preventDefault();
+            shortcut.handler();
+            return;
+          }
+        }
+      }
+    }
+
+    window.addEventListener("keydown", handleKeyDown);
+    return () => window.removeEventListener("keydown", handleKeyDown);
+  }, [shortcuts]);
+}