初始化

API/migrations/000055_remove_product_image_templates.up.sql

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+-- 将图片生成历史迁移为用户级生图记录，并删除不再使用的模板结构。
+CREATE TEMP TABLE legacy_product_image_reference_media ON COMMIT DROP AS
+SELECT DISTINCT media_asset_id
+FROM product_image_references;
+
+UPDATE generation_tasks
+SET input_data = (input_data - 'product_image_template_id') || jsonb_build_object(
+    'product_image', true,
+    'display_prompt', COALESCE(input_data->>'display_prompt', input_data->>'prompt', '')
+)
+WHERE input_data->>'product_image_template_id' IS NOT NULL;
+
+DROP TABLE product_image_references;
+DROP TABLE product_image_templates;
+
+DELETE FROM channel_asset_cache
+WHERE media_asset_id IN (SELECT media_asset_id FROM legacy_product_image_reference_media);
+
+DELETE FROM media_assets
+WHERE id IN (SELECT media_asset_id FROM legacy_product_image_reference_media);