T12: Misskey 2026.10 in the pasture

peers/misskey.sh runs Misskey on the shared Postgres and Redis. Its config is generated with
the pasture's private networks allowed and a setup password, it trusts Caddy's CA through
NODE_EXTRA_CA_CERTS, and the first account it makes is the scenario's user. A new Misskey
federates with nobody, so the setup also turns federation on.

scenarios/misskey.sh adds 35 checks, all passing, as listed in docs/INTEROP.md. They cover
posts, CW, MFM source, replies, unicode reactions both ways and their withdrawal, likes as
reactions, legacy quotes both ways, polls, specified notes, media, deletes, unfollow,
block and statistics. MISSKEY_NAME and MISSKEY_IMAGE are there so Sharkey can reuse the peer.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01ELjqpznMFMNrJoJUj6K5p2

tools/pasture/Caddyfile

@@ -17,3 +17,18 @@ mastodon.test {
 	tls internal
 	reverse_proxy pasture-mastodon:3000
 }
+
+misskey.test {
+	tls internal
+	reverse_proxy pasture-misskey:3000
+}
+
+sharkey.test {
+	tls internal
+	reverse_proxy pasture-sharkey:3000
+}
+
+lemmy.test {
+	tls internal
+	reverse_proxy pasture-lemmy:8536
+}