feat(channel): add auto-schedule feature to channels with background scheduler

k-tv-backend/api/src/dto.rs

@@ -69,6 +69,7 @@ pub struct UpdateChannelRequest {
     /// Replace the entire schedule config (template import/edit)
     pub schedule_config: Option<domain::ScheduleConfig>,
     pub recycle_policy: Option<domain::RecyclePolicy>,
+    pub auto_schedule: Option<bool>,
 }
 
 #[derive(Debug, Serialize)]
@@ -80,6 +81,7 @@ pub struct ChannelResponse {
     pub timezone: String,
     pub schedule_config: domain::ScheduleConfig,
     pub recycle_policy: domain::RecyclePolicy,
+    pub auto_schedule: bool,
     pub created_at: DateTime<Utc>,
     pub updated_at: DateTime<Utc>,
 }
@@ -94,6 +96,7 @@ impl From<domain::Channel> for ChannelResponse {
             timezone: c.timezone,
             schedule_config: c.schedule_config,
             recycle_policy: c.recycle_policy,
+            auto_schedule: c.auto_schedule,
             created_at: c.created_at,
             updated_at: c.updated_at,
         }