Closes#93 and #105.
#93 — add research/plugins/template/channels entries to org.yaml
category_routing defaults. Without them, evolution crons firing with
these categories found no target and their audit summaries silently
dropped at PM. Routes each back to the role that generated it so the
author acts on their own findings.
#105 — emit X-RateLimit-Limit / -Remaining / -Reset on every response
(allowed and throttled) and Retry-After on 429s per RFC 6585. 2 tests
cover both paths. Clients and monitoring tools can now back off
proactively instead of polling into 429 walls.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
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