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_urlTask.brs

@@ -0,0 +1,47 @@
+sub init()
+  m.top.functionname = "request"
+  m.top.response = ""
+end sub
+
+function request()
+  ' Get Bearer token using TokenUtil
+  tokenUtilObj = TokenUtil()
+  accessToken = tokenUtilObj.getAccessToken()
+  if accessToken = invalid then
+    m.top.error = "Not authenticated - please login"
+    return ""
+  end if
+
+  appInfo = createObject("roAppInfo")
+  version = appInfo.getVersion()
+  useragent = "Hydravion (Roku) v" + version
+
+  https = CreateObject("roUrlTransfer")
+  https.RetainBodyOnError(true)
+  port = CreateObject("roMessagePort")
+  https.SetMessagePort(port)
+  https.SetUrl(m.top.url)
+  https.setCertificatesFile("common:/certs/ca-bundle.crt")
+  https.AddHeader("Accept", "application/json")
+  https.AddHeader("User-Agent", useragent)
+  https.AddHeader("Authorization", "Bearer " + accessToken)
+  https.initClientCertificates()
+
+  if https.AsyncGetToString()
+    while (true)
+      event = wait(5000,port)
+      if type(event) = "roUrlEvent"
+        code = event.GetResponseCode()
+        if code = 200
+          m.top.response = event.GetString()
+        else
+          m.top.error = event.GetString()
+          ? m.top.error
+        end if
+      else if event = invalid
+        https.AsyncCancel()
+      end if
+    end while
+  end if
+  return ""
+end function