CREATE TABLE `character_prompt_reviews` (
  `id` BIGINT NOT NULL AUTO_INCREMENT,
  `project_id` BIGINT NOT NULL,
  `task_id` BIGINT NULL,
  `character_id` BIGINT NULL,
  `global_character_id` BIGINT NULL,
  `prompt_version_id` BIGINT NULL,
  `layer_code` VARCHAR(80) NOT NULL,
  `image_type` VARCHAR(80) NULL,
  `review_round` INTEGER NOT NULL DEFAULT 1,
  `review_mode` VARCHAR(80) NOT NULL DEFAULT 'api_preflight',
  `prompt_engine_version` VARCHAR(80) NULL,
  `threshold_score` DECIMAL(5, 2) NOT NULL DEFAULT 92.00,
  `score` DECIMAL(5, 2) NULL,
  `passed` BOOLEAN NOT NULL DEFAULT false,
  `status` VARCHAR(50) NOT NULL DEFAULT 'pending',
  `source_prompt` LONGTEXT NULL,
  `optimized_prompt` LONGTEXT NULL,
  `negative_prompt` LONGTEXT NULL,
  `issues_json` JSON NULL,
  `suggestions_json` JSON NULL,
  `reusable_rules_json` JSON NULL,
  `quality_gate_json` JSON NULL,
  `provider_log_id` BIGINT NULL,
  `provider_code` VARCHAR(100) NULL,
  `model_name` VARCHAR(160) NULL,
  `raw_text` LONGTEXT NULL,
  `error_message` TEXT NULL,
  `created_at` DATETIME(3) NOT NULL DEFAULT CURRENT_TIMESTAMP(3),
  PRIMARY KEY (`id`),
  INDEX `cpr_project_created_idx` (`project_id`, `created_at`),
  INDEX `cpr_task_idx` (`task_id`),
  INDEX `cpr_character_layer_idx` (`character_id`, `layer_code`),
  INDEX `cpr_global_layer_idx` (`global_character_id`, `layer_code`),
  INDEX `cpr_prompt_version_idx` (`prompt_version_id`),
  INDEX `cpr_layer_passed_idx` (`layer_code`, `passed`)
) DEFAULT CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci;

CREATE TABLE `character_prompt_optimization_lessons` (
  `id` BIGINT NOT NULL AUTO_INCREMENT,
  `scope_type` VARCHAR(50) NOT NULL DEFAULT 'global',
  `layer_code` VARCHAR(80) NOT NULL,
  `lesson_type` VARCHAR(80) NOT NULL DEFAULT 'prompt_rule',
  `title` VARCHAR(160) NULL,
  `rule_text` TEXT NOT NULL,
  `prompt_engine_version` VARCHAR(80) NULL,
  `source_review_id` BIGINT NULL,
  `source_character_id` BIGINT NULL,
  `source_prompt_version_id` BIGINT NULL,
  `quality_score` DECIMAL(5, 2) NULL,
  `usage_count` INTEGER NOT NULL DEFAULT 0,
  `metadata_json` JSON NULL,
  `status` VARCHAR(50) NOT NULL DEFAULT 'active',
  `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`),
  INDEX `cpol_scope_layer_status_idx` (`scope_type`, `layer_code`, `status`),
  INDEX `cpol_review_idx` (`source_review_id`),
  INDEX `cpol_character_idx` (`source_character_id`)
) DEFAULT CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci;