chore: refresh package descriptions to the canvas-first tagline

package.json

@@ -1,7 +1,7 @@
 {
   "name": "termchart-monorepo",
   "private": true,
-  "description": "termchart: deterministic Mermaid → ASCII/Unicode for terminals — CLI + Claude Code plugin.",
+  "description": "termchart — a live canvas your AI draws on: push native diagrams, charts & dashboards to a browser/iPad in real time. CLI + Claude Code plugin.",
   "workspaces": [
     "packages/*"
   ],

packages/cli/package.json

@@ -1,7 +1,7 @@
 {
   "name": "@ivanmkc/termchart",
   "version": "0.5.0",
-  "description": "Deterministic Mermaid → ASCII/Unicode for terminals, plus push diagrams and live status updates (toasts/progress/loaders) to the remote termchart viewer.",
+  "description": "Push native diagrams, charts, dashboards & live status to the termchart viewer (browser/iPad) in real time — the CLI for the live canvas your AI draws on; also renders deterministic Mermaid → ASCII/Unicode in the terminal.",
   "type": "module",
   "bin": {
     "termchart": "dist/cli.js"