fix: update hardcoded version references to use dynamic version

- Update DEFAULT_VERSION in version.ts from 3.5.1 to 3.14.0
- Replace hardcoded version in sharedConfigManager with getBrainyVersion()
- Replace hardcoded CLI version display with dynamic version
- Ensures all user-facing version displays stay current automatically

🤖 Generated with [Claude Code](https://claude.ai/code)

Co-Authored-By: Claude <noreply@anthropic.com>

src/utils/version.ts

@@ -5,7 +5,7 @@
 import { isNode } from './environment.js'
 
 // Default version - this should be replaced at build time
-const DEFAULT_VERSION = '3.5.1'
+const DEFAULT_VERSION = '3.14.0'
 
 let cachedVersion: string | null = null
 let versionPromise: Promise<string> | null = null