fix(installer): add installedVersion to DetectedConfig type

Ultraworked with [Sisyphus](https://github.com/code-yeongyu/oh-my-openagent)

Co-authored-by: Sisyphus <clio-agent@sisyphuslabs.ai>

src/cli/types.ts

@@ -34,6 +34,7 @@ export interface ConfigMergeResult {
 
 export interface DetectedConfig {
   isInstalled: boolean
+  installedVersion: string | null
   hasClaude: boolean
   isMax20: boolean
   hasOpenAI: boolean