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/guides/user-guide.md

@@ -160,11 +160,11 @@ The `mosaic` CLI provides a terminal interface to the same gateway API.
 
 ### Installation
 
-The CLI ships as part of the `@mosaic/cli` package:
+The CLI ships as part of the `@mosaicstack/cli` package:
 
 ```bash
 # From the monorepo root
-pnpm --filter @mosaic/cli build
+pnpm --filter @mosaicstack/cli build
 node packages/cli/dist/cli.js --help
 ```