Floatplane channel plugin for Jellyfin 10.10.x: browse, HLS proxy, cookie session, CI release

- IChannel: creators -> sub-channels -> video posts (public listing API, search mapped)
- IRequiresMediaInfoCallback -> signed proxy URLs; stream controller rewrites HLS so the
  AES-128 key is fetched server-side with the session cookie, segments stay on the CDN
- delivery/info cached per token lifetime and throttled (~2/min)
- config page: paste sails.sid + validate, extra creators, quality, search test
- scripts/package.sh -> plugin folder + zip + md5 + manifest.json; Gitea release workflow
- research docs, HAR analysis (HAR itself gitignored), install-pi5.sh

Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>

doc/research/reference-sources/chaosflix/Jellyfin.Plugin.Chaosflix/meta.json

@@ -0,0 +1,13 @@
+{
+  "guid": "c4a05f11-4ccc-4b00-bdea-dbeef1337000",
+  "name": "Chaosflix",
+  "description": "Browse and stream Chaos Computer Club conference talks from media.ccc.de",
+  "overview": "CCC Media Channel for Jellyfin",
+  "owner": "praetorianer777",
+  "category": "Channels",
+  "version": "0.4.0.0",
+  "targetAbi": "12.1.0.0",
+  "status": "Active",
+  "autoUpdate": true,
+  "imageUrl": "https://raw.githubusercontent.com/praetorianer777/chaosflix-jellyfin/main/assets/logo.svg"
+}