v0.2: All videos folder, shared watched state, release-order sorting, official icon, OAuth plumbing, docs

- per-creator "All videos" folder (release order across sub-channels); sub-channel copies use
  cpost: ids and UserDataMirror keeps played/resume state in sync
- SortNameUpdater forces release-order sort names so every client lists newest first by default
- official Floatplane icon as channel image (Primary only — a channel Thumb hid video thumbnails
  in Continue Watching) and as 16:9 plugin thumbnail; one-time image replacement on upgrade
- OAuth device-flow login (FloatplaneAuthService + settings UI); needs a Floatplane client id;
  Turnstile verified domain-bound so password login inside Jellyfin is impossible
- generic install.sh (linuxserver / official image / native), thumb.png in package + manifest
- README rewritten for a general audience, doc/usage.md with screenshots, 60 tests

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

scripts/package.sh

@@ -33,15 +33,17 @@ dotnet publish Jellyfin.Plugin.Floatplane/Jellyfin.Plugin.Floatplane.csproj \
 PLUGIN_DIR="build/${NAME}_${VERSION}"
 mkdir -p "$PLUGIN_DIR"
 cp build/publish/Jellyfin.Plugin.Floatplane.dll "$PLUGIN_DIR/"
+cp Jellyfin.Plugin.Floatplane/Resources/thumb.png "$PLUGIN_DIR/thumb.png"   # shown in Dashboard -> Plugins
+cp Jellyfin.Plugin.Floatplane/Resources/thumb.png build/thumb.png            # release asset for manifest imageUrl
 jq -n --arg guid "$GUID" --arg name "$NAME" --arg desc "$DESCRIPTION" --arg ov "$OVERVIEW" \
       --arg owner "$OWNER" --arg cat "$CATEGORY" --arg ver "$VERSION" --arg cl "$CHANGELOG" \
       --arg abi "$ABI" --arg ts "$TS" \
   '{guid:$guid, name:$name, description:$desc, overview:$ov, owner:$owner, category:$cat,
     version:$ver, changelog:$cl, targetAbi:$abi, timestamp:$ts, status:"Active", autoUpdate:true,
-    imagePath:"", assemblies:["Jellyfin.Plugin.Floatplane.dll"]}' > "$PLUGIN_DIR/meta.json"
+    imagePath:"thumb.png", assemblies:["Jellyfin.Plugin.Floatplane.dll"]}' > "$PLUGIN_DIR/meta.json"
 
 ZIP="build/${SLUG}_${VERSION}.zip"
-(cd "$PLUGIN_DIR" && zip -q -j "../../$ZIP" Jellyfin.Plugin.Floatplane.dll meta.json)
+(cd "$PLUGIN_DIR" && zip -q -j "../../$ZIP" Jellyfin.Plugin.Floatplane.dll meta.json thumb.png)
 MD5=$(md5sum "$ZIP" | cut -d' ' -f1)
 echo "$MD5  $(basename "$ZIP")" > "$ZIP.md5"
 
@@ -49,7 +51,8 @@ if [ -n "$BASE_URL" ]; then
   jq -n --arg guid "$GUID" --arg name "$NAME" --arg desc "$DESCRIPTION" --arg ov "$OVERVIEW" \
         --arg owner "$OWNER" --arg cat "$CATEGORY" --arg ver "$VERSION" --arg cl "$CHANGELOG" \
         --arg abi "$ABI" --arg ts "$TS" --arg md5 "$MD5" --arg url "${BASE_URL%/}/$(basename "$ZIP")" \
-    '[{guid:$guid, name:$name, description:$desc, overview:$ov, owner:$owner, category:$cat, imageUrl:"",
+        --arg img "${BASE_URL%/}/thumb.png" \
+    '[{guid:$guid, name:$name, description:$desc, overview:$ov, owner:$owner, category:$cat, imageUrl:$img,
        versions:[{version:$ver, changelog:$cl, targetAbi:$abi, sourceUrl:$url, checksum:$md5, timestamp:$ts}]}]' \
     > build/manifest.json
 fi