Release 1.1.2 — the default path works end to end

Fix release for 1.1.1: the minimal path end to end, engine commands that
run on Godot, Unity and Unreal, hook warnings you can see, and verdicts
that say when they could not check. Details in CHANGELOG.md; upgrade
steps in UPGRADING.md (v1.1.1 → v1.1.2).

Fixes #67
Fixes #131

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01WuJn2FdynEybfL5KC697nJ

.claude/docs/code-root-resolution.md

@@ -26,7 +26,11 @@ code. This file is the procedure for applying it.
    does not count.
 3. Derivation from the tree, but **only when it is unambiguous**. Exactly one of
    `src/`, `Assets/` or `Source/` present means that is the root. Two or more
-   present means the project is genuinely undecidable — do not guess.
+   present means the project is genuinely undecidable — do not guess. Compare the
+   names exactly as the directory listing spells them: on Windows and default
+   macOS an existence test for `Assets/` also succeeds on Godot's own `assets/`,
+   which would make `src/` + `assets/` look ambiguous and a lone `assets/` look
+   like Unity.
 4. Otherwise: **unresolved.**
 
 The hooks already implement exactly this as `resolve_code_root()` in