Request for review: PR #2075 — fix broken JSON Schema $refs (3 weeks, all CI green)

[kuangmi-bit]

This PR fixes #2073 (the generated JSON Schema bundle ships with broken external $refs) and has been stalled awaiting review since July 23.

What it does: rewrites protoc-generated $ref values (e.g. lf.a2a.v1.AgentCapabilities.jsonschema.json) that point to non-existent external files into internal #/definitions/<title> references, then regenerates the bundle. This is a real bug in the published schema artifacts, not a cosmetic change.

Status:

• All 5 CI checks green (Check Spelling, Linked Issues, PR Title, Lint Code Base, API Lint)
• No review since opening — reviewer pings have gone unanswered

Links:

• PR: docs: rewrite JSON Schema refs to internal definitions (fixes #2073) #2075
• Issue it fixes: [Bug]: Issues with generated JSONSchema #2073

Would appreciate a maintainer or reviewer pass. Happy to adjust anything that doesn't fit the repo's conventions.