fix: brainstorm infinite loop, ghost cursor, embedding ::vector cast, semantic search, billing stats, usage meter accordion

- Fix useBrainstormSocket: stable guestId via useRef, remove setState in cleanup
- Fix GhostCursor: direct DOM manipulation via refs, no useState re-renders
- Fix all SQL embedding queries: add ::vector cast on text columns
- Fix embedding truncation to 15000 chars (under 8192 token limit)
- Fix NoteEmbedding INSERT: remove non-existent updatedAt column
- Fix billing page: show all quota stats in grid instead of single metric
- Fix usage meter: accordion expand/collapse, per-feature detail
- Fix semantic search: rebuild 103 note embeddings, ::vector cast on vectorSearch
- Fix brainstorm expand/manual-idea/create: ::vector cast on embedding SQL

memento-note/app/(main)/trash/trash-client.tsx

@@ -3,7 +3,7 @@
 import { useState, useMemo } from 'react'
 import { useRouter } from 'next/navigation'
 import { motion, AnimatePresence } from 'motion/react'
-import { PageEntry } from '@/components/page-entry'
+
 import {
   Trash2,
   RotateCcw,
@@ -138,7 +138,6 @@ export function TrashClient({
   }
 
   return (
-    <PageEntry>
     <div className="h-full flex flex-col bg-[#F9F8F6] dark:bg-[#1a1a1a]">
       <header className="px-12 pt-12 pb-8 flex flex-col gap-6 sticky top-0 bg-[#F9F8F6]/80 dark:bg-[#1a1a1a]/80 backdrop-blur-md z-30 border-b border-border/20">
         <div className="flex items-center justify-between">
@@ -289,6 +288,5 @@ export function TrashClient({
         </p>
       </footer>
     </div>
-    </PageEntry>
   )
 }