feat(notes): make incoming-note popup attention-grabbing

Task #409: incoming notes now mirror UpcomingMeetingAlert's attention model
so recipients can't miss them.

Changes:
- DB: add `notification_sound_note` (default "knock"), `notify_notes_enabled`,
  `vibration_enabled_note` to users schema; pushed via drizzle.
- API spec: add 3 new fields to AuthUser + UpdateNotificationPreferencesBody;
  regenerated codegen.
- Auth route: include new fields in buildAuthUser + PATCH allowlist.
- Socket hook: play notification sound + vibrate on `note_received`,
  gated by mute/notifyNotesEnabled/socket warmup, with playedNoteIdsRef
  dedupe (mirrors upcoming-meeting-alert playedRef).
- IncomingNotePopupContext: enqueue() now returns boolean acceptance so
  the socket hook can suppress sound on own-note/duplicate.
- Popup visual: z-[110], ring-4 amber, shadow-2xl, animate-in zoom,
  avatar animate-ping pulse.
- Settings UI: refactored to SLOT_KEYS map, added 3rd "Notes" slot tab
  (grid-cols-3) with enabled/vibration toggles + sound picker.
- Locales en/ar: added notifSettings.slot.note, notesEnabled, vibrationNote.

Pre-existing typecheck errors in executive-meetings.ts (font settings
scope) are unrelated to this task.

lib/api-zod/src/generated/api.ts

@@ -74,10 +74,22 @@ export const LoginResponse = zod.object({
     "beep",
     "soft",
   ]),
+  notificationSoundNote: zod.enum([
+    "ding",
+    "chime",
+    "bell",
+    "knock",
+    "pop",
+    "alert",
+    "beep",
+    "soft",
+  ]),
   notifyOrdersEnabled: zod.boolean(),
   notifyMeetingsEnabled: zod.boolean(),
+  notifyNotesEnabled: zod.boolean(),
   vibrationEnabledOrder: zod.boolean(),
   vibrationEnabledMeeting: zod.boolean(),
+  vibrationEnabledNote: zod.boolean(),
   notificationsMuted: zod.boolean(),
   roles: zod.array(zod.string()),
   groups: zod.array(
@@ -187,10 +199,22 @@ export const GetMeResponse = zod.object({
     "beep",
     "soft",
   ]),
+  notificationSoundNote: zod.enum([
+    "ding",
+    "chime",
+    "bell",
+    "knock",
+    "pop",
+    "alert",
+    "beep",
+    "soft",
+  ]),
   notifyOrdersEnabled: zod.boolean(),
   notifyMeetingsEnabled: zod.boolean(),
+  notifyNotesEnabled: zod.boolean(),
   vibrationEnabledOrder: zod.boolean(),
   vibrationEnabledMeeting: zod.boolean(),
+  vibrationEnabledNote: zod.boolean(),
   notificationsMuted: zod.boolean(),
   roles: zod.array(zod.string()),
   groups: zod.array(
@@ -249,10 +273,22 @@ export const UpdateLanguageResponse = zod.object({
     "beep",
     "soft",
   ]),
+  notificationSoundNote: zod.enum([
+    "ding",
+    "chime",
+    "bell",
+    "knock",
+    "pop",
+    "alert",
+    "beep",
+    "soft",
+  ]),
   notifyOrdersEnabled: zod.boolean(),
   notifyMeetingsEnabled: zod.boolean(),
+  notifyNotesEnabled: zod.boolean(),
   vibrationEnabledOrder: zod.boolean(),
   vibrationEnabledMeeting: zod.boolean(),
+  vibrationEnabledNote: zod.boolean(),
   notificationsMuted: zod.boolean(),
   roles: zod.array(zod.string()),
   groups: zod.array(
@@ -318,10 +354,22 @@ export const UpdateClockStyleResponse = zod.object({
     "beep",
     "soft",
   ]),
+  notificationSoundNote: zod.enum([
+    "ding",
+    "chime",
+    "bell",
+    "knock",
+    "pop",
+    "alert",
+    "beep",
+    "soft",
+  ]),
   notifyOrdersEnabled: zod.boolean(),
   notifyMeetingsEnabled: zod.boolean(),
+  notifyNotesEnabled: zod.boolean(),
   vibrationEnabledOrder: zod.boolean(),
   vibrationEnabledMeeting: zod.boolean(),
+  vibrationEnabledNote: zod.boolean(),
   notificationsMuted: zod.boolean(),
   roles: zod.array(zod.string()),
   groups: zod.array(
@@ -345,10 +393,15 @@ export const UpdateNotificationPreferencesBody = zod.object({
   notificationSoundMeeting: zod
     .enum(["ding", "chime", "bell", "knock", "pop", "alert", "beep", "soft"])
     .optional(),
+  notificationSoundNote: zod
+    .enum(["ding", "chime", "bell", "knock", "pop", "alert", "beep", "soft"])
+    .optional(),
   notifyOrdersEnabled: zod.boolean().optional(),
   notifyMeetingsEnabled: zod.boolean().optional(),
+  notifyNotesEnabled: zod.boolean().optional(),
   vibrationEnabledOrder: zod.boolean().optional(),
   vibrationEnabledMeeting: zod.boolean().optional(),
+  vibrationEnabledNote: zod.boolean().optional(),
   notificationsMuted: zod.boolean().optional(),
 });
 
@@ -390,10 +443,22 @@ export const UpdateNotificationPreferencesResponse = zod.object({
     "beep",
     "soft",
   ]),
+  notificationSoundNote: zod.enum([
+    "ding",
+    "chime",
+    "bell",
+    "knock",
+    "pop",
+    "alert",
+    "beep",
+    "soft",
+  ]),
   notifyOrdersEnabled: zod.boolean(),
   notifyMeetingsEnabled: zod.boolean(),
+  notifyNotesEnabled: zod.boolean(),
   vibrationEnabledOrder: zod.boolean(),
   vibrationEnabledMeeting: zod.boolean(),
+  vibrationEnabledNote: zod.boolean(),
   notificationsMuted: zod.boolean(),
   roles: zod.array(zod.string()),
   groups: zod.array(
@@ -457,10 +522,22 @@ export const UpdateClockHour12Response = zod.object({
     "beep",
     "soft",
   ]),
+  notificationSoundNote: zod.enum([
+    "ding",
+    "chime",
+    "bell",
+    "knock",
+    "pop",
+    "alert",
+    "beep",
+    "soft",
+  ]),
   notifyOrdersEnabled: zod.boolean(),
   notifyMeetingsEnabled: zod.boolean(),
+  notifyNotesEnabled: zod.boolean(),
   vibrationEnabledOrder: zod.boolean(),
   vibrationEnabledMeeting: zod.boolean(),
+  vibrationEnabledNote: zod.boolean(),
   notificationsMuted: zod.boolean(),
   roles: zod.array(zod.string()),
   groups: zod.array(