# Quick Task 260414-8ip: Add info priority to informational owl messages

## What Changed

Added message priority classification to `format_owl_messages()` in `hook_output.rs`. Automated notices like `[WORKING_PERCH_NOTICE]` are now tagged `priority="info"` instead of `priority="high"`, with softer wrapper language that tells agents "no acknowledgment needed."

## Why

Agents were verbally remarking on every working perch notice ("Stale verifier working perch notice — acknowledged"), creating noise in conversation output. The "STOP and acknowledge" instruction was treating all owl messages as urgent when many are purely informational.

## How It Works

- `is_informational(body)` returns true for messages containing `[WORKING_PERCH_NOTICE]`
- `format_owl_messages()` tracks whether any high-priority messages exist in the batch
- Info-only batches get: `[OWL SYSTEM] Informational owl messages above — no acknowledgment needed. Continue your current task.`
- Mixed batches (any high-priority) keep the existing STOP-and-acknowledge wrapper
- Extensible: add new patterns to `is_informational()` for future automated message types

## Key Files

- `src/common/hook_output.rs` — `is_informational()` helper, priority classification in `format_owl_messages()`

## Commit

- `82ed5cf`: feat(quick-260414-8ip): add info priority for informational owl messages