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/auth/src/auth.test.ts

@@ -50,7 +50,7 @@ describe('buildOAuthProviders', () => {
       process.env['WORKOS_CLIENT_ID'] = 'client_test123';
 
       expect(() => buildOAuthProviders()).toThrow(
-        '@mosaic/auth: WorkOS SSO requires WORKOS_ISSUER, WORKOS_CLIENT_ID, WORKOS_CLIENT_SECRET.',
+        '@mosaicstack/auth: WorkOS SSO requires WORKOS_ISSUER, WORKOS_CLIENT_ID, WORKOS_CLIENT_SECRET.',
       );
     });
 
@@ -97,7 +97,7 @@ describe('buildOAuthProviders', () => {
       process.env['KEYCLOAK_CLIENT_SECRET'] = 'secret123';
 
       expect(() => buildOAuthProviders()).toThrow(
-        '@mosaic/auth: Keycloak SSO requires KEYCLOAK_CLIENT_ID, KEYCLOAK_CLIENT_SECRET, KEYCLOAK_ISSUER.',
+        '@mosaicstack/auth: Keycloak SSO requires KEYCLOAK_CLIENT_ID, KEYCLOAK_CLIENT_SECRET, KEYCLOAK_ISSUER.',
       );
     });
 
@@ -129,7 +129,7 @@ describe('buildOAuthProviders', () => {
       process.env['AUTHENTIK_CLIENT_ID'] = 'authentik-client';
 
       expect(() => buildOAuthProviders()).toThrow(
-        '@mosaic/auth: Authentik SSO requires AUTHENTIK_ISSUER, AUTHENTIK_CLIENT_ID, AUTHENTIK_CLIENT_SECRET.',
+        '@mosaicstack/auth: Authentik SSO requires AUTHENTIK_ISSUER, AUTHENTIK_CLIENT_ID, AUTHENTIK_CLIENT_SECRET.',
       );
     });