docs: add releasing instructions to CLAUDE.md

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Co-Authored-By: Claude Opus 4.5 <[email protected]>

Author: dbrattli

CLAUDE.md

@@ -59,3 +59,8 @@ type GetAttribute(path: string) = inherit Attribute()
 ```
 
 Class attributes use `Py.ClassAttributesTemplate` for Pydantic-style classes.
+
+## Releasing
+
+When asked to create a release, read `RELEASING.md` for the release process.
+Use `Release-As: X.Y.Z-alpha.N.P` in commit messages or PR descriptions to set the version.