fix: remove sqlx from API layer, read TTL from TranscodeManager, init local_files from DB on startup

k-tv-backend/api/src/routes/admin_providers.rs

@@ -168,15 +168,6 @@ async fn rebuild_registry(state: &AppState) -> DomainResult<()> {
                     Arc::new(infra::LocalFilesProvider::new(Arc::clone(&idx), lf_cfg, tm.clone())),
                 );
 
-                // Sync cleanup_ttl_hours to transcode_settings table so
-                // GET /files/transcode-settings returns the configured value.
-                let _ = sqlx::query(
-                    "UPDATE transcode_settings SET cleanup_ttl_hours = ? WHERE id = 1",
-                )
-                .bind(cleanup_ttl_hours as i64)
-                .execute(&sqlite_pool)
-                .await;
-
                 *state.local_index.write().await = Some(idx);
                 *state.transcode_manager.write().await = tm;
                 *state.sqlite_pool.write().await = Some(sqlite_pool);

k-tv-backend/api/src/routes/files.rs

@@ -256,17 +256,10 @@ async fn get_transcode_settings(
     State(state): State<AppState>,
     CurrentUser(_user): CurrentUser,
 ) -> Result<Json<TranscodeSettingsResponse>, ApiError> {
-    let pool = state.sqlite_pool.read().await.clone()
-        .ok_or_else(|| ApiError::not_implemented("sqlite not available"))?;
-
-    let (ttl,): (i64,) =
-        sqlx::query_as("SELECT cleanup_ttl_hours FROM transcode_settings WHERE id = 1")
-            .fetch_one(&pool)
-            .await
-            .map_err(|e| ApiError::internal(e.to_string()))?;
-
+    let tm = state.transcode_manager.read().await.clone()
+        .ok_or_else(|| ApiError::not_implemented("TRANSCODE_DIR not configured"))?;
     Ok(Json(TranscodeSettingsResponse {
-        cleanup_ttl_hours: ttl as u32,
+        cleanup_ttl_hours: tm.get_cleanup_ttl(),
     }))
 }