Implement quick-add registry (task 21)

- Add url field to QuickAddAction; make action optional
- Add getQuickAdds() + SerializedQuickAddItem to registry so quick-add
  data can cross the server→client RSC boundary without serializing fns
- Update calendar/lists/notes manifests with navigation URLs
- QuickAddProvider wraps root layout: holds sheet/palette open state and
  global cmd/ctrl+k shortcut
- QuickAddSheet: bottom drawer on mobile, right-side popover on desktop,
  actions grouped by module
- CommandPalette: cmdk-powered modal with fuzzy filter and full keyboard
  nav (arrows + enter + esc)
- QuickAddFab: client button replacing the plain + stub in the dashboard
- Add .claude/** to ESLint ignores to prevent stale worktree artifacts
  from failing lint

All 4 E2E specs pass; typecheck, lint, and build clean.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

src/modules/_core/index.ts

@@ -9,4 +9,5 @@ export type {
   SearchAdapter,
   SearchResult,
 } from "./module";
-export { registerModule, getRegistry, getEntityType, getWidget } from "./registry";
+export { registerModule, getRegistry, getEntityType, getWidget, getQuickAdds } from "./registry";
+export type { QuickAddItem, SerializedQuickAddItem } from "./registry";

src/modules/_core/module.ts

@@ -45,7 +45,9 @@ export type QuickAddAction = {
   id: string;
   label: string;
   icon?: string;
-  action: (ctx: WidgetContext) => void | Promise<void>;
+  /** Navigation target used by the FAB sheet and command palette. */
+  url: string;
+  action?: (ctx: WidgetContext) => void | Promise<void>;
 };
 
 export type EntityTypeRegistration = {

src/modules/_core/registry.ts

@@ -1,4 +1,4 @@
-import type { ModuleManifest, EntityTypeRegistration, DashboardWidget } from "./module";
+import type { ModuleManifest, EntityTypeRegistration, DashboardWidget, QuickAddAction } from "./module";
 
 const modules = new Map<string, ModuleManifest>();
 const entityTypes = new Map<string, EntityTypeRegistration>();
@@ -29,3 +29,28 @@ export function getEntityType(type: string): EntityTypeRegistration | undefined
 export function getWidget(id: string): DashboardWidget | undefined {
   return widgets.get(id);
 }
+
+export type QuickAddItem = QuickAddAction & { moduleId: string; moduleName: string };
+
+/** Serializable subset safe to pass from server components to client components. */
+export type SerializedQuickAddItem = {
+  id: string;
+  label: string;
+  icon?: string;
+  url: string;
+  moduleId: string;
+  moduleName: string;
+};
+
+export function getQuickAdds(): SerializedQuickAddItem[] {
+  return [...modules.values()].flatMap((manifest) =>
+    (manifest.quickAdds ?? []).map(({ id, label, icon, url }) => ({
+      id,
+      label,
+      icon,
+      url,
+      moduleId: manifest.id,
+      moduleName: manifest.name,
+    })),
+  );
+}

src/modules/calendar/manifest.tsx

@@ -156,13 +156,13 @@ const manifest: ModuleManifest = {
       id: "calendar.new-event",
       label: "New event",
       icon: "calendar-plus",
-      action: () => undefined,
+      url: "/calendar",
     },
     {
       id: "calendar.new-calendar",
       label: "New calendar",
       icon: "calendar-days",
-      action: () => undefined,
+      url: "/calendar",
     },
   ],
 };

src/modules/lists/manifest.tsx

@@ -1,6 +1,5 @@
 import type { ModuleManifest, WidgetContext } from "../_core/module";
 import { z } from "zod";
-import { addItemToDefaultList } from "./server/actions";
 import { listLists, listWidgetItems, searchItems, searchLists } from "./server/queries";
 
 const listIdsSchema = z.union([z.literal("all"), z.array(z.string().uuid())]);
@@ -90,23 +89,19 @@ const manifest: ModuleManifest = {
       id: "lists.add-shopping",
       label: "Add to shopping",
       icon: "shopping-cart",
-      action: async () => {
-        await addItemToDefaultList({ type: "shopping", text: "New item" });
-      },
+      url: "/lists",
     },
     {
       id: "lists.add-task",
       label: "Add to tasks",
       icon: "list-checks",
-      action: async () => {
-        await addItemToDefaultList({ type: "task", text: "New task" });
-      },
+      url: "/lists",
     },
     {
       id: "lists.new-list",
       label: "New list",
       icon: "list-plus",
-      action: () => undefined,
+      url: "/lists",
     },
   ],
 };

src/modules/notes/manifest.tsx

@@ -67,7 +67,7 @@ const manifest: ModuleManifest = {
       id: "notes.new-note",
       label: "New note",
       icon: "file-plus",
-      action: () => undefined,
+      url: "/notes/new",
     },
   ],
 };