Added database support for actor-specific scene tags.

migrations/20260304020542_scene_actor_tags.js

@@ -0,0 +1,21 @@
+exports.up = async function(knex) {
+	await knex.schema.alterTable('releases_tags', (table) => {
+		table.integer('actor_id')
+			.references('id')
+			.inTable('actors');
+
+		table.dropUnique(['tag_id', 'release_id']);
+	});
+
+	await knex.raw('CREATE UNIQUE INDEX releases_tags_tag_id_release_id_actor_id ON releases_tags (tag_id, release_id, COALESCE(actor_id, -1))');
+};
+
+exports.down = async function(knex) {
+	await knex.schema.alterTable('releases_tags', (table) => {
+		table.dropColumn('actor_id');
+
+		table.unique(['tag_id', 'release_id']);
+	});
+
+	await knex.raw('DROP INDEX IF EXISTS releases_tags_tag_id_release_id_actor_id');
+};