Baseline Prisma Migrate against the existing conversion_jobs table

Marks 0_init as applied via prisma migrate resolve so Prisma's
migration history is in sync with the pre-existing conversion_jobs
table, without running any SQL against the table itself.

prisma/migrations/0_init/migration.sql

@@ -0,0 +1,30 @@
+-- CreateTable
+CREATE TABLE `conversion_jobs` (
+    `id` INTEGER UNSIGNED NOT NULL AUTO_INCREMENT,
+    `uuid` CHAR(36) NOT NULL,
+    `status` ENUM('pending', 'processing', 'done', 'failed') NOT NULL DEFAULT 'pending',
+    `family` VARCHAR(32) NOT NULL,
+    `source_format` VARCHAR(16) NOT NULL,
+    `target_format` VARCHAR(16) NOT NULL,
+    `original_filename` VARCHAR(255) NOT NULL,
+    `input_path` VARCHAR(255) NOT NULL,
+    `output_path` VARCHAR(255) NULL,
+    `input_mime_type` VARCHAR(128) NOT NULL,
+    `output_mime_type` VARCHAR(128) NULL,
+    `input_size_bytes` INTEGER UNSIGNED NOT NULL,
+    `output_size_bytes` INTEGER UNSIGNED NULL,
+    `quality` SMALLINT UNSIGNED NULL,
+    `conversion_duration_seconds` DECIMAL(10, 3) NULL,
+    `error_message` VARCHAR(255) NULL,
+    `error_log` TEXT NULL,
+    `created_at` DATETIME(0) NOT NULL DEFAULT CURRENT_TIMESTAMP(0),
+    `updated_at` DATETIME(0) NOT NULL DEFAULT CURRENT_TIMESTAMP(0),
+    `expires_at` DATETIME(0) NOT NULL,
+    `cleaned_at` DATETIME(0) NULL,
+
+    UNIQUE INDEX `uniq_uuid`(`uuid`),
+    INDEX `idx_status`(`status`),
+    INDEX `idx_expires_at`(`expires_at`),
+    PRIMARY KEY (`id`)
+) DEFAULT CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci;
+