refactor(domain): Row structs for from_persistence, ID newtypes, kill clippy.toml

- delete clippy.toml (too-many-arguments-threshold=20 hack)
- ChannelRow/MediaItemRow/LibraryItemRow structs for from_persistence
- SnapshotId/ActivityEventId/PlaybackRecordId newtypes
- DomainError variants use ChannelId/UserId instead of Uuid
- ActivityEvent.channel_id: Option<ChannelId> not Option<Uuid>
- InMemory repos key on newtype IDs
- AlgorithmicParams struct for schedule engine
- update all adapters/application/presentation callers

crates/mcp/src/tools/channels.rs

@@ -12,7 +12,9 @@ pub async fn list_channels(
     query_deps: &Arc<ChannelQueryDeps>,
     owner_id: Uuid,
 ) -> String {
-    let query = ListByOwnerQuery { owner_id };
+    let query = ListByOwnerQuery {
+        owner_id: owner_id.into(),
+    };
     match application::channels::list_by_owner::execute(query_deps, query).await {
         Ok(channels) => ok_json(&channels),
         Err(e) => domain_err(e),
@@ -20,7 +22,9 @@ pub async fn list_channels(
 }
 
 pub async fn get_channel(query_deps: &Arc<ChannelQueryDeps>, id: Uuid) -> String {
-    let query = GetChannelQuery { channel_id: id };
+    let query = GetChannelQuery {
+        channel_id: id.into(),
+    };
     match application::channels::get::execute(query_deps, query).await {
         Ok(Some(channel)) => ok_json(&channel),
         Ok(None) => serde_json::json!({"error": "Channel not found"}).to_string(),
@@ -35,7 +39,7 @@ pub async fn create_channel(
     timezone: &str,
 ) -> String {
     let cmd = CreateChannelCommand {
-        owner_id,
+        owner_id: owner_id.into(),
         name: name.to_string(),
         timezone: timezone.to_string(),
     };
@@ -55,8 +59,8 @@ pub async fn update_channel(
     schedule_config: Option<domain::ScheduleConfig>,
 ) -> String {
     let cmd = UpdateChannelCommand {
-        channel_id,
-        owner_id,
+        channel_id: channel_id.into(),
+        owner_id: owner_id.into(),
         name,
         description: description.map(Some),
         timezone,
@@ -76,8 +80,8 @@ pub async fn delete_channel(
     owner_id: Uuid,
 ) -> String {
     let cmd = DeleteChannelCommand {
-        channel_id,
-        owner_id,
+        channel_id: channel_id.into(),
+        owner_id: owner_id.into(),
     };
     match application::channels::delete::execute(cmd_deps, cmd).await {
         Ok(()) => serde_json::json!({"deleted": channel_id}).to_string(),