fix: rename all packages from @mosaic/* to @mosaicstack/*

- Updated all package.json name fields and dependency references
- Updated all TypeScript/JavaScript imports
- Updated .woodpecker/publish.yml filters and registry paths
- Updated tools/install.sh scope default
- Updated .npmrc registry paths (worktree + host)
- Enhanced update-checker.ts with checkForAllUpdates() multi-package support
- Updated CLI update command to show table of all packages
- Added KNOWN_PACKAGES, formatAllPackagesTable, getInstallAllCommand
- Marked checkForUpdate() with @deprecated JSDoc

Closes #391

packages/mosaic/src/tui/app.tsx

@@ -1,6 +1,6 @@
 import React, { useState, useCallback, useEffect, useMemo, useRef } from 'react';
 import { Box, useApp, useInput } from 'ink';
-import type { ParsedCommand } from '@mosaic/types';
+import type { ParsedCommand } from '@mosaicstack/types';
 import { TopBar } from './components/top-bar.js';
 import { BottomBar } from './components/bottom-bar.js';
 import { MessageList } from './components/message-list.js';