* feat(cli): add api-prefix and overlay support to spec generation
Add --api-prefix and --overlay options to the spec-generation command so
commands can be named from a URL path prefix and OpenAPI Overlay 1.0
documents can be applied before building the spec. Normalize router
segments so a leading digit gets an underscore and a Python keyword gets
a trailing one, and add mounted_command_paths to map spec paths to the
paths they mount at under obb.
* fix: remove local-only entries from .gitignore
Remove .claude/ and github_metadata/ patterns that only exist locally
and have no business in the shared repository.
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Co-authored-by: dlee-bq <325002271+dlee-bq@users.noreply.github.com>
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