Pasture: Lemmy 0.19 joins, built to trust the pasture's CA

Most of the threadiverse runs Lemmy 0.19, whose release trusts only the
roots its rustls bundles. images/lemmy19 builds 0.19.20 from its tag with
reqwest's rustls-tls-native-roots added, and the pasture runs it as
lemmy19.test. scenarios/lemmy19.sh passes 27 checks with no change to
PrivaPub (communities, threads, comments, votes, its private message,
moderation) and one known gap: 0.19 takes private messages only as
ChatMessage and answers our direct Note 400, like Mbin, so G-0008 now
covers both and waits for the owner.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01LsXgEaXee4GCU1hwYgPJXw

CLAUDE.md

@@ -547,6 +547,11 @@ tools/pasture/run.sh down                                            # removes e
   API follows one only when named by its handle; a chat room is made, then written in. `scenarios/nodebb.sh`, 23
   checks: a category followed and its topic as a titled thread, replies both ways, nbuser following alice, votes both
   ways, an edit and a deletion, a chat both ways, the unfollow, statistics.
+- **Lemmy 0.19 (0.19.20), as `lemmy19.test`:** what most of the threadiverse runs. Its release trusts only the roots its
+  rustls bundles, so `images/lemmy19` builds the tag with reqwest's `rustls-tls-native-roots` added (about ten minutes
+  the first time) and the pasture's bundle is mounted as the system's. Its config names the database as `uri` (1.0:
+  `connection`) and its API is v3 (`/api/v3`, `sort=New`, `resolve_object` answering views). It takes private messages
+  only as `ChatMessage` (G-0008). `scenarios/lemmy19.sh`, 27 checks and that gap.
 - **Hollo (0.9.19):** Fedify's microblog server on the shared Postgres, set up through its web form (which
   checks `Origin` against `Host`, so the request names `hollo.test` without the port). It needs a 44-character
   `SECRET_KEY`, a media directory and a `themeColor`; statuses and votes go as JSON. Town only, no scenario.