feat: improve background startup and launcher control

Detach --background launches from terminals with quieter runtime output, make wrapper/plugin overlay start explicit, and allow trailing commas in JSONC configs for safer hot-reload edits. Includes pending Anki/docs/backlog updates in this unreleased batch.

src/anki-connect.ts

@@ -192,13 +192,35 @@ export class AnkiConnectClient {
     deckName: string,
     modelName: string,
     fields: Record<string, string>,
+    tags: string[] = [],
   ): Promise<number> {
+    const note: {
+      deckName: string;
+      modelName: string;
+      fields: Record<string, string>;
+      tags?: string[];
+    } = { deckName, modelName, fields };
+    if (tags.length > 0) {
+      note.tags = tags;
+    }
+
     const result = await this.invoke('addNote', {
-      note: { deckName, modelName, fields },
+      note,
     });
     return result as number;
   }
 
+  async addTags(noteIds: number[], tags: string[]): Promise<void> {
+    if (noteIds.length === 0 || tags.length === 0) {
+      return;
+    }
+
+    await this.invoke('addTags', {
+      notes: noteIds,
+      tags: tags.join(' '),
+    });
+  }
+
   async deleteNotes(noteIds: number[]): Promise<void> {
     await this.invoke('deleteNotes', { notes: noteIds });
   }