# Investigation Template

## Problem statement
- Symptom:
- Expected behavior:
- First observed:
- Scope:

## Reproduction
- Preconditions:
- Exact steps:
- Actual result:

## Evidence
- Logs:
- API responses:
- Database observations:
- Websocket behavior:
- UI behavior:

## Root cause
- Confirmed cause:
- Why it happens:

## Fix
- Change summary:
- Why this fix is minimal and safe:

## Verification
- Commands/tests run:
- Manual verification:
- Residual risk:
