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/hydra_README.md

@@ -0,0 +1,31 @@
+# Hydravion
+**Unofficial Floatplane client for Roku devices. This project is NOT associated with Floatplane Media (floatplane.com).**
+
+<p align="center">
+<img src="https://raw.githubusercontent.com/bmlzootown/Hydravion/master/images/channel-poster-mm_icon_focus_hd.png" width="200px">
+</p>
+
+## Installing
+The certified version can be added via access code [TCXTKHH](https://my.roku.com/add/TCXTKHH), or you can sideload the source itself.
+</br></br>
+[**Now available on the Roku channel store!**](https://channelstore.roku.com/en-ot/details/96a633034fff363b2a194509d75cb966/hydravion)
+
+## Issues/Feedback
+Having issues? Have feedback? Join the [Discord server](https://discord.gg/4xKDGz5M5B), or open an issue [here](https://github.com/bmlzootown/Hydravion/issues).
+
+## Other Platforms
+- [Hydravion-AndroidTV](https://github.com/bmlzootown/Hydravion-AndroidTV) (bmlzootown, NickM-27)
+- [Wasserflug-tvOS](https://github.com/Jman012/Wasserflug-tvOS) (Jman012)
+
+## Screenshots ([Imgur](https://imgur.com/a/mPSp50T))
+<p align="center">
+    <img src="https://i.imgur.com/7lTgfeQ.png" width="500px">
+    <img src="https://i.imgur.com/PgMGNG7.png" width="500px">
+    <img src="https://i.imgur.com/Q8mTKCq.png" width="500px">
+    <img src="https://i.imgur.com/Ucck3Es.png" width="500px">
+</p>
+
+## Credits
+
+### QR Code Generation
+This project uses the [QR-Code-generator-brightscript](https://github.com/paramount-engineering/QR-Code-generator-brightscript) library by Paramount, which is a derivative of the [QR Code generator](https://github.com/nayuki/QR-Code-generator) by Project Nayuki, for oauth flow. Both libraries are licensed under the MIT License.