feat: add PermissionRequest hook support for IDE users

The Notification hook (permission_prompt) only fires in the CLI, not in
VSCode/IDE. The PermissionRequest hook fires in both environments. This
adds PermissionRequest handling so IDE users hear the permission sound
and get notifications when Claude needs approval.

Closes #11

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

Author: garysheng

install.sh

@@ -215,7 +215,7 @@ peon_entry = {
 }
 
 # Events to register
-events = ['SessionStart', 'UserPromptSubmit', 'Stop', 'Notification']
+events = ['SessionStart', 'UserPromptSubmit', 'Stop', 'Notification', 'PermissionRequest']
 
 for event in events:
     event_hooks = hooks.get(event, [])

peon.sh

@@ -468,6 +468,17 @@ case "$EVENT" in
       exit 0
     fi
     ;;
+  PermissionRequest)
+    # Fires in IDE (VSCode) when a permission dialog appears.
+    # Notification with permission_prompt only fires in CLI, so this
+    # ensures IDE users also hear the permission sound.
+    CATEGORY="permission"
+    STATUS="needs approval"
+    MARKER="● "
+    NOTIFY=1
+    NOTIFY_COLOR="red"
+    MSG="$PROJECT  —  Permission needed"
+    ;;
   # PostToolUseFailure — no sound. Claude retries on its own.
   *)
     exit 0