ALTER TABLE `shot_generation_plans`
  ADD COLUMN `capability_registry_version_id` BIGINT NULL AFTER `provider_id`,
  ADD COLUMN `parameter_schema_version_id` BIGINT NULL AFTER `capability_registry_version_id`,
  ADD COLUMN `pricing_version_id` BIGINT NULL AFTER `parameter_schema_version_id`;

CREATE INDEX `sgp_capability_registry_idx`
  ON `shot_generation_plans`(`capability_registry_version_id`);
CREATE INDEX `sgp_parameter_schema_idx`
  ON `shot_generation_plans`(`parameter_schema_version_id`);
CREATE INDEX `sgp_pricing_version_idx`
  ON `shot_generation_plans`(`pricing_version_id`);

CREATE TABLE `model_capability_versions` (
  `id` BIGINT NOT NULL AUTO_INCREMENT,
  `provider_type` VARCHAR(80) NOT NULL,
  `provider_code` VARCHAR(100) NOT NULL,
  `model_name` VARCHAR(160) NULL,
  `revision` INTEGER NOT NULL,
  `version_key` VARCHAR(160) NOT NULL,
  `content_hash` VARCHAR(64) NOT NULL,
  `status` VARCHAR(50) NOT NULL DEFAULT 'published',
  `capability_json` JSON NOT NULL,
  `source_json` JSON NULL,
  `effective_at` DATETIME(3) NOT NULL DEFAULT CURRENT_TIMESTAMP(3),
  `created_by_user_id` BIGINT NULL,
  `created_at` DATETIME(3) NOT NULL DEFAULT CURRENT_TIMESTAMP(3),
  PRIMARY KEY (`id`),
  UNIQUE INDEX `mcv_provider_revision_key`(`provider_type`, `provider_code`, `revision`),
  UNIQUE INDEX `mcv_provider_hash_key`(`provider_type`, `provider_code`, `content_hash`),
  INDEX `mcv_provider_status_effective_idx`(`provider_code`, `status`, `effective_at`)
) DEFAULT CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci;

CREATE TABLE `model_parameter_schema_versions` (
  `id` BIGINT NOT NULL AUTO_INCREMENT,
  `provider_type` VARCHAR(80) NOT NULL,
  `provider_code` VARCHAR(100) NOT NULL,
  `model_name` VARCHAR(160) NULL,
  `revision` INTEGER NOT NULL,
  `version_key` VARCHAR(160) NOT NULL,
  `content_hash` VARCHAR(64) NOT NULL,
  `status` VARCHAR(50) NOT NULL DEFAULT 'published',
  `schema_json` JSON NOT NULL,
  `source_json` JSON NULL,
  `effective_at` DATETIME(3) NOT NULL DEFAULT CURRENT_TIMESTAMP(3),
  `created_by_user_id` BIGINT NULL,
  `created_at` DATETIME(3) NOT NULL DEFAULT CURRENT_TIMESTAMP(3),
  PRIMARY KEY (`id`),
  UNIQUE INDEX `mpsv_provider_revision_key`(`provider_type`, `provider_code`, `revision`),
  UNIQUE INDEX `mpsv_provider_hash_key`(`provider_type`, `provider_code`, `content_hash`),
  INDEX `mpsv_provider_status_effective_idx`(`provider_code`, `status`, `effective_at`)
) DEFAULT CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci;

CREATE TABLE `model_pricing_versions` (
  `id` BIGINT NOT NULL AUTO_INCREMENT,
  `provider_type` VARCHAR(80) NOT NULL,
  `provider_code` VARCHAR(100) NOT NULL,
  `model_name` VARCHAR(160) NULL,
  `revision` INTEGER NOT NULL,
  `version_key` VARCHAR(160) NOT NULL,
  `content_hash` VARCHAR(64) NOT NULL,
  `status` VARCHAR(50) NOT NULL DEFAULT 'published',
  `pricing_json` JSON NOT NULL,
  `source_json` JSON NULL,
  `effective_at` DATETIME(3) NOT NULL DEFAULT CURRENT_TIMESTAMP(3),
  `created_by_user_id` BIGINT NULL,
  `created_at` DATETIME(3) NOT NULL DEFAULT CURRENT_TIMESTAMP(3),
  PRIMARY KEY (`id`),
  UNIQUE INDEX `mpv_provider_revision_key`(`provider_type`, `provider_code`, `revision`),
  UNIQUE INDEX `mpv_provider_hash_key`(`provider_type`, `provider_code`, `content_hash`),
  INDEX `mpv_provider_status_effective_idx`(`provider_code`, `status`, `effective_at`)
) DEFAULT CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci;