refactor(cli): extract findGitRoot to dedicated git utility file

Move findGitRoot function from logger.ts to new git.ts utility file for better code organization. Update imports in logger.ts and codebuff-client.ts accordingly.

🤖 Generated with Codebuff
Co-Authored-By: Codebuff <noreply@codebuff.com>

Author: brandonkachen

cli/src/utils/codebuff-client.ts

@@ -1,5 +1,6 @@
 import { CodebuffClient } from '@codebuff/sdk'
 
+import { findGitRoot } from './git'
 import { logger } from './logger'
 
 let clientInstance: CodebuffClient | null = null
@@ -14,11 +15,12 @@ export function getCodebuffClient(): CodebuffClient | null {
       return null
     }
 
-    logger.info('Initializing CodebuffClient with API key')
+    const gitRoot = findGitRoot()
+    logger.info('Initializing CodebuffClient with API key', { cwd: gitRoot })
     try {
       clientInstance = new CodebuffClient({
         apiKey,
-        cwd: process.cwd(),
+        cwd: gitRoot,
       })
       logger.info('CodebuffClient initialized successfully')
     } catch (error) {

cli/src/utils/git.ts

@@ -0,0 +1,15 @@
+import { dirname, join } from 'path'
+import { existsSync } from 'fs'
+
+export function findGitRoot(): string {
+  let currentDir = process.cwd()
+
+  while (currentDir !== dirname(currentDir)) {
+    if (existsSync(join(currentDir, '.git'))) {
+      return currentDir
+    }
+    currentDir = dirname(currentDir)
+  }
+
+  return process.cwd()
+}

cli/src/utils/logger.ts

@@ -1,18 +1,7 @@
 import { appendFileSync, existsSync, mkdirSync, unlinkSync } from 'fs'
-import { join, dirname } from 'path'
+import { join } from 'path'
 
-function findGitRoot(): string {
-  let currentDir = process.cwd()
-  
-  while (currentDir !== dirname(currentDir)) {
-    if (existsSync(join(currentDir, '.git'))) {
-      return currentDir
-    }
-    currentDir = dirname(currentDir)
-  }
-  
-  return process.cwd()
-}
+import { findGitRoot } from './git'
 
 const PROJECT_ROOT = findGitRoot()
 const LOG_DIR = join(PROJECT_ROOT, 'debug')