align with metadata standard

packages/shared/meta-interface/src/lib/MetaData.test.ts

@@ -22,13 +22,13 @@ describe('MetaData', () => {
     });
 
     it('should set and get nested metadata using nested keys', () => {
-        root.at('titles').at('eng').set("Star Wars");
-        root.at('titles').at('jpn').set("Staru Warsu");
-        expect(root.at('titles').at('eng').get()).to.equal("Star Wars");
-        expect(root.at('titles').at('jpn').get()).to.equal("Staru Warsu");
-        expect(root.at('titles').get()).to.deep.equal({eng: "Star Wars", jpn: "Staru Warsu"});
+        root.at('titles').at('eng').at('Star Wars').set(true);
+        root.at('titles').at('jpn').at('Staru Warsu').set(true);
+        expect(root.at('titles').at('eng').at('Star Wars').get()).to.equal(true);
+        expect(root.at('titles').at('jpn').at('Staru Warsu').get()).to.equal(true);
+        expect(root.at('titles').get()).to.deep.equal({eng: {"Star Wars": true}, jpn: {"Staru Warsu": true}});
         expect(root.get()).to.deep.equal({
-            titles: {eng: "Star Wars", jpn: "Staru Warsu"}
+            titles: {eng: {"Star Wars": true}, jpn: {"Staru Warsu": true}}
         });
     });
 

packages/shared/meta-interface/src/lib/metadata-type/VideoMeta.ts

@@ -8,8 +8,9 @@ export interface VideoMeta {
     increment?: string;
     movieYear?: string;
     videoType?: VideoType;
+    title?: string;//display title (localized); the one name to show
     originalTitle?: string;//title in original language
-    titles?: LanguageData<string>;// <ISO 639-3 lang codes, title>
+    titles?: LanguageData<Record<string, true>>;// key-set: <ISO 639-3 lang code, {name: true}> — every clean name incl. AKAs (METADATA_KEYS.md §3)
 }
 
 export const VideoMetaFields = [