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

docs/scratchpads/p5-003-telegram-plugin.md

@@ -2,7 +2,7 @@
 
 ## Objective
 
-Implement `@mosaic/telegram-plugin` by matching the established Discord plugin pattern with Telegraf + socket.io-client, add package docs, and pass package typecheck/lint.
+Implement `@mosaicstack/telegram-plugin` by matching the established Discord plugin pattern with Telegraf + socket.io-client, add package docs, and pass package typecheck/lint.
 
 ## Requirements Source
 
@@ -34,13 +34,13 @@ manual structural parity with the Discord plugin.
 ## Progress Log
 
 - 2026-03-13: Loaded Mosaic/global/repo guidance, mission files, Discord reference implementation, and Telegram package scaffold.
-- 2026-03-13: Added `telegraf` and `socket.io-client` to `@mosaic/telegram-plugin`.
+- 2026-03-13: Added `telegraf` and `socket.io-client` to `@mosaicstack/telegram-plugin`.
 - 2026-03-13: Implemented Telegram message forwarding, gateway streaming accumulation, response chunking, and package README.
 
 ## Verification Evidence
 
-- `pnpm --filter @mosaic/telegram-plugin typecheck` → pass
-- `pnpm --filter @mosaic/telegram-plugin lint` → pass
+- `pnpm --filter @mosaicstack/telegram-plugin typecheck` → pass
+- `pnpm --filter @mosaicstack/telegram-plugin lint` → pass
 - `pnpm typecheck` → pass
 - `pnpm lint` → pass