fix(hookify): correct field mapping for stop and prompt events

[daniel-dallimore]

Fixes #32153

Root cause

Rule.from_dict() in plugins/hookify/core/config_loader.py converts a simple pattern field into a Condition by inferring which field to match against based on the event type. The else branch was catching stop and prompt events and mapping them to field='content', but _extract_field() in rule_engine.py has no handler for content on those events — it expects reason for Stop and user_prompt for UserPromptSubmit. This caused _extract_field() to return None, so pattern matching always silently failed.

Fix

Add explicit branches before the else fallback:

elif event == 'stop':
    field = 'reason'
elif event == 'prompt':
    field = 'user_prompt'

Test plan

• Create a hookify rule with event: stop and a simple pattern — verify it now matches when Claude stops
• Create a hookify rule with event: prompt and a simple pattern — verify it now matches on user input
• Existing event: bash and event: file rules continue to work unchanged

🤖 Generated with Claude Code