diff --git a/build.gradle.kts b/build.gradle.kts
index 14fc759..0c7bbdd 100644
--- a/build.gradle.kts
+++ b/build.gradle.kts
@@ -24,13 +24,6 @@ kotlin {
 
 configurations {
     named("runtimeClasspath") {
-        exclude(group = "tools.jackson.core")
-        exclude(group = "tools.jackson.databind")
-        exclude(group = "com.fasterxml.jackson.core")
-        exclude(group = "com.fasterxml.jackson.databind")
-        exclude(group = "com.fasterxml.jackson.datatype")
-        exclude(group = "com.fasterxml.jackson.dataformat")
-        exclude(group = "com.fasterxml.jackson.module")
     }
 }
 
@@ -45,7 +38,9 @@ configurations.all {
 
 dependencies {
     implementation(platform("org.springframework.boot:spring-boot-dependencies:4.1.0"))
-    implementation("org.springframework.boot:spring-boot-starter-webmvc")
+    implementation("org.springframework.boot:spring-boot-starter-webmvc") {
+        exclude(group = "org.springframework.boot", module = "spring-boot-starter-jackson")
+    }
     implementation("org.springframework.boot:spring-boot-starter-jdbc")
     implementation("org.springframework.boot:spring-boot-starter-flyway")
     implementation("org.flywaydb:flyway-database-postgresql")
diff --git a/src/main/resources/db/migration/V1__init.sql b/src/main/resources/db/migration/V1__init.sql
index 22d0faf..4159c1e 100644
--- a/src/main/resources/db/migration/V1__init.sql
+++ b/src/main/resources/db/migration/V1__init.sql
@@ -1,18 +1,19 @@
 CREATE SCHEMA IF NOT EXISTS media_mirror;
-
-CREATE TABLE IF NOT EXISTS media_mirror.jobs (
+CREATE TABLE media_mirror.jobs (
     id          uuid PRIMARY KEY DEFAULT gen_random_uuid(),
-    item_id     text NOT NULL,
-    source_url  text NOT NULL,
+    item_id     text NOT NULL,              -- itemId из Jellyfin
+    source_url  text NOT NULL,              -- URL исходника (jellyfin stream)
     source_type text NOT NULL DEFAULT 'jellyfin',
-    status      text NOT NULL DEFAULT 'new',
-    progress    int  NOT NULL DEFAULT 0,
-    video_key   text,
-    audio_keys  jsonb,
+    status      text NOT NULL DEFAULT 'new',  -- new | processing | done | failed | cancelled
+    progress    int  NOT NULL DEFAULT 0,      -- 0..100
+    video_key   text,                         -- S3-ключ видео (после done)
+    audio_keys  jsonb,                        -- [{key, title, language, index}]
     error       text,
     created_at  timestamptz NOT NULL DEFAULT now(),
     updated_at  timestamptz NOT NULL DEFAULT now(),
     taken_at    timestamptz
 );
-
 CREATE INDEX IF NOT EXISTS idx_jobs_status ON media_mirror.jobs (status, created_at);
+CREATE UNIQUE INDEX IF NOT EXISTS uq_jobs_active_item
+    ON media_mirror.jobs (item_id)
+    WHERE status NOT IN ('failed', 'cancelled');