style(framework): prettier-format DEFAULT_SEED_FILES (fix #575 CI format gate)

DEFAULT_SEED_FILES exceeded print-width (100) after adding CONSTITUTION.md;
prettier@3.8.1 breaks it multiline. No behavior change.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

packages/mosaic/src/config/file-adapter.ts

@@ -13,7 +13,12 @@ import { join } from 'node:path';
  * This list must match the explicit seed loop in
  * packages/mosaic/framework/install.sh.
  */
-export const DEFAULT_SEED_FILES = ['CONSTITUTION.md', 'AGENTS.md', 'STANDARDS.md', 'TOOLS.md'] as const;
+export const DEFAULT_SEED_FILES = [
+  'CONSTITUTION.md',
+  'AGENTS.md',
+  'STANDARDS.md',
+  'TOOLS.md',
+] as const;
 import type { ConfigService, ConfigSection, ResolvedConfig } from './config-service.js';
 import type { SoulConfig, UserConfig, ToolsConfig, InstallAction } from '../types.js';
 import { soulSchema, userSchema, toolsSchema } from './schemas.js';