fix: Filter noisy git watcher events

Only react to meaningful changes (refs, HEAD, index, objects).
Ignore lock files, FETCH_HEAD, fsmonitor, and other noisy files.

server/services/terminal.ts

@@ -270,16 +270,42 @@ function broadcastGitChange() {
   }
 }
 
+// Files to ignore (noisy or irrelevant)
+const GIT_IGNORE_PATTERNS = [
+  'FETCH_HEAD',
+  'gc.log',
+  '.lock',
+  'COMMIT_EDITMSG',
+  'ORIG_HEAD',
+  'gitk.cache',
+  'sourcetreeconfig',
+  '.DS_Store',
+  'fsmonitor',
+  'packed-refs'
+]
+
 export function startGitWatcher() {
   const gitDir = join(WORKING_DIR, '.git')
 
   try {
     // Watch .git directory recursively
     gitWatcher = watch(gitDir, { recursive: true }, (eventType, filename) => {
-      // Ignore some noisy files
-      if (filename?.includes('FETCH_HEAD') || filename?.includes('gc.log')) {
-        return
-      }
+      if (!filename) return
+
+      // Ignore noisy files
+      const shouldIgnore = GIT_IGNORE_PATTERNS.some(pattern =>
+        filename.includes(pattern)
+      )
+      if (shouldIgnore) return
+
+      // Only react to meaningful changes
+      const isRelevant =
+        filename.includes('refs/') ||      // branch/tag changes
+        filename === 'HEAD' ||             // checkout
+        filename === 'index' ||            // staging area
+        filename.includes('objects/')      // new commits/blobs
+
+      if (!isRelevant) return
 
       // Debounce to avoid flooding
       if (gitDebounceTimer) {
@@ -287,6 +313,7 @@ export function startGitWatcher() {
       }
 
       gitDebounceTimer = setTimeout(() => {
+        console.log(`[Git] Change: ${filename}`)
         broadcastGitChange()
       }, GIT_DEBOUNCE_MS)
     })