fix(check-naming): address title review feedback

Authored-By: Codex (GPT-5) <noreply@openai.com>

README.md

@@ -73,9 +73,12 @@ The check validates four things for every non-break-glass Agent PR:
    Unknown roles, missing `bug-` segment, uppercase bug-ids, and empty
    kebab descriptions all produce a `FAIL[check-naming]` log line.
 
-2. **Title form** — for a `role/bug` branch the title must start with
-   `[bug-<id>] `. For a `chore` branch the title must have no `[bug-id]`
-   prefix. If both carry a bug-id they must match.
+2. **Title form** — for a `role/bug` branch the title must be
+   `[bug-<id>] type(scope): description`. The type starts with a lowercase
+   letter and the type and one-component scope contain only lowercase letters,
+   digits, and hyphens. An optional `!` may follow the scope, and the description
+   must contain a non-whitespace character. For a `chore` branch the title must
+   have no `[bug-id]` prefix. If both carry a bug-id they must match.
 
 3. **Tracking and attribution** — on Bug-backed work, `## Tracking` contains both the literal
    `Fixes bug-<id>` automation token and the matching navigable