feat: enhance explore phase with TUI workflow event handling

apps/application/src/agent/explore.rs

@@ -15,8 +15,11 @@
 //! snapshot of what the codebase contains and where relevant code lives.
 
 use anyhow::Result;
+use std::collections::VecDeque;
 use std::future::Future;
 use std::pin::Pin;
+use std::sync::{Arc, Mutex};
+use zesdex_domain::agent::TurnEvent;
 
 /// The consolidated output of an explore phase — a set of system-level
 /// context messages injected before the main agent prompt.
@@ -43,10 +46,12 @@ pub trait ExploreService: Send + Sync {
     ///
     /// `query` — the user's current input phrase.
     /// `workspace_root` — absolute path to the workspace root.
+    /// `turn_events` — shared event queue for TUI updates.
     /// Returns structured context messages and a summary blob.
     fn explore<'a>(
         &'a self,
         query: &'a str,
         workspace_root: &'a str,
+        turn_events: &'a Arc<Mutex<VecDeque<TurnEvent>>>,
     ) -> Pin<Box<dyn Future<Output = Result<ExploreOutput>> + Send + 'a>>;
 }

apps/application/src/agent/turn_service.rs

@@ -203,7 +203,7 @@ impl<P: ProviderService, T: ToolExecutor> super::AgentTurnService for AgentTurnS
                 },
             );
 
-            match explorer.explore(&user_query, &workspace_root).await {
+            match explorer.explore(&user_query, &workspace_root, &params.turn_events).await {
                 Ok(output) => {
                     // Insert each context message as a system message.
                     // They go at index 0 and are removed after the turn