cfengine format: Fixed indentation of comments inside empty blocks

Co-authored-by: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
Signed-off-by: Ole Herman Schumacher Elgesem <ole@northern.tech>

Author: olehermanse

src/cfengine_cli/format.py

@@ -25,6 +25,8 @@
 
 BLOCK_TYPES = {"bundle_block", "promise_block", "body_block"}
 
+BLOCK_BODY_TYPES = {"bundle_block_body", "promise_block_body", "body_block_body"}
+
 PROMISER_PARTS = {"promiser", "->", "stakeholder"}
 
 
@@ -643,6 +645,10 @@ def _comment_indent(node: Node, indent: int) -> int:
         nearest = _skip_comments(node.prev_named_sibling, "prev")
     if nearest and nearest.type in INDENTED_TYPES:
         return indent + 2
+    # No indented sibling found — if we're directly inside a block body,
+    # indent so the comment lines up with where promises/attributes would.
+    if nearest is None and node.parent and node.parent.type in BLOCK_BODY_TYPES:
+        return indent + 2
     return indent