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/fpdl_package.json

@@ -0,0 +1,58 @@
+{
+  "name": "floatplane-plex-downloader",
+  "version": "5.19.9",
+  "private": true,
+  "type": "module",
+  "scripts": {
+    "start": "pnpm run make && node ./dist/float.cjs",
+    "startHeadless": "pnpm run make && node ./dist/float.cjs --headless",
+    "make": "node ./make.js"
+  },
+  "dependencies": {
+    "@ctrl/plex": "^7.1.0",
+    "@inrixia/db": "2.0.2",
+    "@inrixia/helpers": "^3.21.2",
+    "@npmcli/package-json": "^8.0.0",
+    "@prometheus-io/client": "^0.16.1",
+    "chalk-template": "^1.1.3",
+    "default-import": "^3.0.1",
+    "dotenv": "^18.0.6",
+    "ffbinaries": "^1.1.6",
+    "floatplane": "^5.2.8",
+    "html-to-text": "^10.0.1",
+    "json5": "^2.2.3",
+    "mime-types": "^3.0.2",
+    "multi-progress-bars": "^5.0.3",
+    "open": "^11.0.4",
+    "process.argv": "^1.0.0",
+    "prompts": "^2.4.2",
+    "sanitize-filename": "^1.6.4",
+    "semver": "^7.8.5",
+    "stream-throttle": "^0.1.3",
+    "ws": "^8.22.0",
+    "xmlbuilder2": "^4.0.3"
+  },
+  "devDependencies": {
+    "@eslint/eslintrc": "^3.3.7",
+    "@eslint/js": "^10.0.1",
+    "@types/html-to-text": "^9.0.4",
+    "@types/mime-types": "^3.0.1",
+    "@types/multi-progress": "^2.0.6",
+    "@types/node": "^26.6.4",
+    "@types/prompts": "^2.4.9",
+    "@types/semver": "^7.8.0",
+    "@types/stream-throttle": "^0.1.4",
+    "@types/ws": "^8.18.2",
+    "@typescript-eslint/eslint-plugin": "^8.71.1",
+    "@typescript-eslint/parser": "^8.71.1",
+    "esbuild": "^0.28.2",
+    "eslint": "^10.12.0",
+    "eslint-config-prettier": "^10.1.8",
+    "eslint-plugin-prettier": "^5.5.6",
+    "got": "^16.0.0",
+    "postject": "1.0.0-alpha.6",
+    "rimraf": "^6.1.3",
+    "tsx": "^4.23.15",
+    "typescript": "^7.0.2"
+  }
+}