docs: clarify local rows omit registry in catalog wire contract

Author: gildesmarais

AGENTS.md

@@ -30,7 +30,7 @@ Before substantial edits, state cross-repo context in your notes:
 Common contracts:
 
 - Feed Directory browse data comes from `{instance}/api/v1/configs` on a running `html2rss-web` instance (see OpenAPI in `html2rss-web`).
-- Catalog wire rows include `id`, `path`, `directory`, `channel`, `parameters`, plus `source` (`registry` | `local`) and `registry` (registry id for bundle entries). The browse UI ignores `source`/`registry` today — wire parsing stays in `adapters/catalog-api.ts`.
+- Catalog wire rows include `id`, `path`, `directory`, `channel`, `parameters`, plus `source` (`registry` | `local`). Bundle entries also include `registry` (registry id); local rows omit `registry`. The browse UI ignores `source`/`registry` today — wire parsing stays in `adapters/catalog-api.ts`.
 - Instance URL persistence: default public instance, `#!url=` hash deep link from the web app, browser localStorage, and filter state in URL query params (`q`, `topic`, `lang`, `sort`, `page`).
 - Deep link from `html2rss-web`: `https://html2rss.github.io/feed-directory/#!url={encodedInstanceUrl}` must keep working.
 - Catalog metadata in YAML (`directory.*`, `registry.id`) is authored in `html2rss-configs` only; instances load verified bundles via registry sync.