changelog: the entry carries its pull request number (#993)

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>

Author: santoshkumarradha

…ased/9902-chrome-names-the-wire-model.md …eased/993-chrome-names-the-wire-model.mddocs/changes/unreleased/9902-chrome-names-the-wire-model.md renamed to docs/changes/unreleased/993-chrome-names-the-wire-model.md docs/changes/unreleased/9902-chrome-names-the-wire-model.md renamed to docs/changes/unreleased/993-chrome-names-the-wire-model.md

@@ -1,7 +1,7 @@
 ---
 kind: fixed
 title: the model on the seam is the model the engine is on, and the rung beside it says which ladder it is
-pr: 9902
+pr: 993
 surface: [chat, engine]
 invalidates:
   - "The foot's model cell showed the model you last picked. No longer true: while a turn is running it names the model that turn is actually on, and only an idle conversation shows the dial. Both it and the `via` cell now come off one reading — `PhaseNews.Model`, which is `session.Agent.TurnModel()` as it crossed the seam — so they cannot name two different models on one line. `internal/tui3.app.wireModel` is the door; `TestTheSeamNamesTheModelTheTurnIsOnAndNotTheDial` is the law."