Clean Obsidian callout syntax

Remove stale or duplicate callout annotations from Python AST-based code

Code maintenance where obsolete callout metadata clutters readability.

• · Python source file with callout decorators/comments

• · Cleaned Python file without dead callouts

• · ast module
• · Python parser

Python source file valid; callouts identifiable by decorator or comment marker

• · Callout marker ambiguous → cleanup removes active annotation
• · Syntax error in source → parsing fails