CREATE TABLE `character_extraction_versions` (
  `id` BIGINT NOT NULL AUTO_INCREMENT,
  `project_id` BIGINT NOT NULL,
  `story_bible_id` BIGINT NULL,
  `provider_log_id` BIGINT NULL,
  `source_type` VARCHAR(50) NOT NULL,
  `source_label` VARCHAR(120) NULL,
  `prompt_category` VARCHAR(100) NULL,
  `prompt_version` VARCHAR(80) NULL,
  `prompt_text` LONGTEXT NULL,
  `provider_code` VARCHAR(100) NULL,
  `model_name` VARCHAR(100) NULL,
  `raw_text` LONGTEXT NULL,
  `role_pool_plan_json` JSON NULL,
  `characters_json` JSON NULL,
  `quality_score` INT NULL,
  `review_comment` TEXT NULL,
  `status` VARCHAR(50) NOT NULL DEFAULT 'active',
  `created_by_user_id` BIGINT NULL,
  `created_at` DATETIME(3) NOT NULL DEFAULT CURRENT_TIMESTAMP(3),
  `updated_at` DATETIME(3) NOT NULL DEFAULT CURRENT_TIMESTAMP(3) ON UPDATE CURRENT_TIMESTAMP(3),
  PRIMARY KEY (`id`)
) DEFAULT CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci;

CREATE INDEX `character_extraction_versions_project_id_status_idx`
  ON `character_extraction_versions`(`project_id`, `status`);

CREATE INDEX `character_extraction_versions_story_bible_id_idx`
  ON `character_extraction_versions`(`story_bible_id`);

CREATE INDEX `character_extraction_versions_provider_log_id_idx`
  ON `character_extraction_versions`(`provider_log_id`);

CREATE INDEX `character_extraction_versions_source_type_idx`
  ON `character_extraction_versions`(`source_type`);