update comments

libs/cli/langgraph_cli/cli.py

@@ -943,6 +943,11 @@ def deploy(
 
 
 def _normalize_image_name(value: str | None) -> str:
+    """Sanitize a deployment/directory name into a valid Docker repository name.
+
+    Docker repository names must be lowercase and may only contain
+    [a-z0-9._-].  Invalid characters are replaced with hyphens.
+    """
     if not value:
         return "app"
     slug = re.sub(r"[^a-z0-9._-]+", "-", value.lower()).strip("-.")
@@ -950,6 +955,10 @@ def _normalize_image_name(value: str | None) -> str:
 
 
 def _normalize_image_tag(value: str) -> str:
+    """Validate and return a Docker image tag.
+
+    Tags may only contain [A-Za-z0-9_.-].  Defaults to "latest" when empty.
+    """
     if not value:
         value = "latest"
     if not re.fullmatch(r"[A-Za-z0-9_.-]+", value):

libs/cli/langgraph_cli/progress.py

@@ -16,6 +16,7 @@ class Progress:
         self.message = message
         self._base_message = message
         self._show_elapsed = elapsed
+        # use this to make sure we don't kill thread when we set msg to ""
         self._stop = threading.Event()
         self.spinner_generator = self.spinning_cursor()
 
@@ -52,6 +53,7 @@ class Progress:
             sys.stdout.write(next(self.spinner_generator) + " " + message)
             sys.stdout.flush()
             time.sleep(self.delay)
+            # clear the spinner and message
             sys.stdout.write(
                 "\b" * (len(message) + 2)
                 + " " * (len(message) + 2)