domain ports: CQRS-split traits for all bounded contexts

crates/domain/src/ports/transcode.rs

@@ -0,0 +1,18 @@
+//! Transcode settings port.
+//!
+//! Persists FFmpeg transcoding configuration (cleanup TTL, etc.).
+//! Small enough to keep as a single trait.
+
+use async_trait::async_trait;
+
+use crate::errors::DomainResult;
+
+/// Port for transcode settings persistence.
+#[async_trait]
+pub trait TranscodeSettingsRepository: Send + Sync {
+    /// Load the persisted cleanup TTL. Returns `None` if no row exists yet.
+    async fn load_cleanup_ttl(&self) -> DomainResult<Option<u32>>;
+
+    /// Persist the cleanup TTL (upsert -- always row id=1).
+    async fn save_cleanup_ttl(&self, hours: u32) -> DomainResult<()>;
+}