chore: add Python cache files to .gitignore

Add __pycache__/, *.pyc, and *.pyo to .gitignore to prevent Python cache files from being tracked.

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Co-Authored-By: Claude <noreply@anthropic.com>

Author: ericyangpan

.gitignore

@@ -46,5 +46,10 @@ next-env.d.ts
 # claude settings
 .claude/settings.local.json
 
+# python cache
+__pycache__/
+*.pyc
+*.pyo
+
 #prompts
 .prompts