Merge remote-tracking branch 'origin/rcc/runtime' into dev/rust

# Conflicts:
#	rust/crates/rusty-claude-cli/src/main.rs

rust/crates/runtime/src/compact.rs

@@ -109,6 +109,7 @@ pub fn compact_session(session: &Session, config: CompactionConfig) -> Compactio
         compacted_session: Session {
             version: session.version,
             messages: compacted_messages,
+            metadata: session.metadata.clone(),
         },
         removed_message_count: removed.len(),
     }
@@ -433,6 +434,7 @@ mod tests {
         let session = Session {
             version: 1,
             messages: vec![ConversationMessage::user_text("hello")],
+            metadata: None,
         };
 
         let result = compact_session(&session, CompactionConfig::default());
@@ -517,6 +519,7 @@ mod tests {
                     usage: None,
                 },
             ],
+            metadata: None,
         };
 
         let result = compact_session(