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_apiConfig.brs

@@ -0,0 +1,76 @@
+' API Configuration Utility
+
+function ApiConfig() as Object
+  apiConfigObj = {
+    environment: "prod"
+    
+    ' Base URLs for different environments
+    baseUrls: {
+      prod: "https://www.floatplane.com"
+      preprod: "https://pp.floatplane.com"
+    }
+    
+    ' Auth server URL
+    authBaseUrl: "https://auth.floatplane.com"
+    
+    ' Realm names for different environments
+    realms: {
+      prod: "floatplane"
+      preprod: "floatplane-pp"
+    }
+    
+    getApiBaseUrl: function() as String
+      if m.environment = "preprod"
+        return m.baseUrls.preprod
+      else
+        return m.baseUrls.prod
+      end if
+    end function
+    
+    ' Get the auth server base URL
+    getAuthBaseUrl: function() as String
+      return m.authBaseUrl
+    end function
+    
+    ' Get the realm name for the current environment
+    getRealm: function() as String
+      if m.environment = "preprod"
+        return m.realms.preprod
+      else
+        return m.realms.prod
+      end if
+    end function
+    
+    ' Build a full API URL from path
+    buildApiUrl: function(path as String) as String
+      baseUrl = m.getApiBaseUrl()
+      if path.Left(1) <> "/"
+        path = "/" + path
+      end if
+      return baseUrl + path
+    end function
+    
+    ' Build a full auth URL from path
+    buildAuthUrl: function(path as String) as String
+      baseUrl = m.getAuthBaseUrl()
+      if path.Left(1) <> "/"
+        path = "/" + path
+      end if
+      return baseUrl + path
+    end function
+    
+    ' Build a realm-specific auth URL (e.g., /realms/{realm}/protocol/...)
+    buildRealmAuthUrl: function(path as String) as String
+      realm = m.getRealm()
+      ' Remove leading slash from path if present, we'll add it after realm
+      if path.Left(1) = "/"
+        path = path.Mid(1)
+      end if
+      realmPath = "/realms/" + realm + "/protocol/" + path
+      return m.buildAuthUrl(realmPath)
+    end function
+  }
+  
+  return apiConfigObj
+end function
+