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/components/archive-client.tsx

@@ -1,7 +1,7 @@
 'use client'
 
 import { useState, useCallback } from 'react'
-import { PageEntry } from '@/components/page-entry'
+
 import dynamic from 'next/dynamic'
 import type { Note } from '@/lib/types'
 import { NotesEditorialView } from '@/components/notes-editorial-view'
@@ -41,11 +41,9 @@ export function ArchiveClient({ notes }: ArchiveClientProps) {
   }
 
   return (
-    <PageEntry>
     <NotesEditorialView
       notes={notes}
       onOpen={handleOpen}
     />
-    </PageEntry>
   )
 }