fix(zsh): move workspace indexed check to background (#2408)

Author: laststylebender14

shell-plugin/lib/helpers.zsh

@@ -120,21 +120,20 @@ function _forge_start_background_sync() {
     if [[ "$sync_enabled" != "true" ]]; then
         return 0
     fi
-    
+
     # Get canonical workspace path
     local workspace_path=$(pwd -P)
-    
+
     # Check if workspace is indexed before attempting sync
-    if ! _forge_is_workspace_indexed "$workspace_path"; then
-        return 0
-    fi
-    
-    # Run sync once in background
-    # Close all output streams immediately to prevent any flashing
-    # Redirect stdin to /dev/null to prevent hanging if sync tries to read input
     {
+        # Run sync once in background
+        # Close all output streams immediately to prevent any flashing
+        # Redirect stdin to /dev/null to prevent hanging if sync tries to read input
         exec >/dev/null 2>&1 </dev/null
         setopt NO_NOTIFY NO_MONITOR
+        if ! _forge_is_workspace_indexed "$workspace_path"; then
+            return 0
+        fi
         $_FORGE_BIN workspace sync "$workspace_path"
     } &!
 }