chore: remove dead code — 8 components, 5 libs, 4 API routes, 4 npm packages, 30+ scripts, dead CSS, dead exports

Removed unused components:
- brainstorm-canvas, brainstorm-create-dialog, invite-dialog, manual-idea-dialog
- note-inline-editor, profile-page-header, quota-paywall, label-management-dialog

Removed dead lib files:
- api-auth.ts, color-harmony-recommendation.ts, label-storage.ts, modern-color-options.ts
- hooks/use-card-size-mode.ts

Removed dead API routes:
- ai/test-chat, ai/test-embeddings, ai/test-tags, admin/randomize-labels

Removed unused npm packages:
- cmdk, novel, tippy.js, react-force-graph-2d

Cleaned dead CSS from globals.css:
- acrylic-*, win11-shadow-*, muuri-grid/item, ai-glass, ai-tab-indicator, ai-send-btn, sidebar-view-toggle, memento-sidebar-depth

Removed 29 orphan scripts and 3 root orphan files

Cleaned dead exports from 8 lib files:
- NOTE_TYPE_CONFIG, getPublishableKey, PROVIDER_DEFAULTS, useNotes/useNote/invalidateNote, etc.

memento-note/package.json

@@ -81,7 +81,6 @@
     "cheerio": "^1.1.2",
     "class-variance-authority": "^0.7.1",
     "clsx": "^2.1.1",
-    "cmdk": "^1.1.1",
     "d3": "^7.9.0",
     "dagre": "^0.8.5",
     "date-fns": "^4.1.0",
@@ -99,14 +98,12 @@
     "next": "^16.1.6",
     "next-auth": "^5.0.0-beta.30",
     "nodemailer": "^8.0.4",
-    "novel": "^1.0.2",
     "pdf-parse": "^2.4.5",
     "postcss": "^8.5.6",
     "pptxgenjs": "^4.0.1",
     "radix-ui": "^1.4.3",
     "react": "19.2.3",
     "react-dom": "19.2.3",
-    "react-force-graph-2d": "^1.29.1",
     "react-markdown": "^10.1.0",
     "rehype-katex": "^7.0.1",
     "rehype-raw": "^7.0.0",
@@ -121,7 +118,6 @@
     "stripe": "^22.1.1",
     "tailwind-merge": "^3.4.0",
     "tinyld": "^1.3.4",
-    "tippy.js": "^6.3.7",
     "vazirmatn": "^33.0.3",
     "zod": "^4.3.5"
   },