feat: centralize default constants and refactor overlay enter handling in TUI

apps/infrastructure/src/tools/parallel_delegate.rs

@@ -100,7 +100,7 @@ impl Tool for ParallelDelegate {
             .providers
             .get(&provider)
             .map(|p| p.api_base.clone())
-            .unwrap_or_else(|| "https://opencode.ai/zen/v1".to_string());
+            .unwrap_or_else(|| zesdex_domain::agent::defaults::DEFAULT_API_BASE.to_string());
 
         let api_key = crate::llm::provider::resolve_api_key(&settings, &app_config);
 

apps/infrastructure/src/tools/plan.rs

@@ -45,8 +45,9 @@ impl Tool for PlanEnter {
         let plan_path = ctx.session_dir.join("PLAN.md");
         let _ = std::fs::write(&plan_path, &plan_text);
         if let Some(events) = &ctx.turn_events {
-            let mut q = events.lock().unwrap();
-            q.push_back(crate::TurnEvent::PlanUpdate(plan_text.clone()));
+            if let Ok(mut q) = events.lock() {
+                q.push_back(crate::TurnEvent::PlanUpdate(plan_text.clone()));
+            }
         }
 
         Ok(format!(
@@ -103,8 +104,9 @@ impl Tool for PlanReady {
             let plan_path = ctx.session_dir.join("PLAN.md");
             let _ = std::fs::write(&plan_path, &plan_content);
             if let Some(events) = &ctx.turn_events {
-                let mut q = events.lock().unwrap();
-                q.push_back(crate::TurnEvent::PlanUpdate(plan_content.clone()));
+                if let Ok(mut q) = events.lock() {
+                    q.push_back(crate::TurnEvent::PlanUpdate(plan_content.clone()));
+                }
             }
 
             Ok(format!("Plan saved to {filename}. Starting execution."))

apps/infrastructure/src/tools/spawn.rs

@@ -79,7 +79,7 @@ impl Tool for SpawnAgents {
             .providers
             .get(&provider)
             .map(|p| p.api_base.clone())
-            .unwrap_or_else(|| "https://opencode.ai/zen/v1".to_string());
+            .unwrap_or_else(|| zesdex_domain::agent::defaults::DEFAULT_API_BASE.to_string());
 
         let api_key = crate::llm::provider::resolve_api_key(&settings, &app_config);
 
@@ -196,7 +196,7 @@ impl Tool for SpawnPipeline {
             .providers
             .get(&provider)
             .map(|p| p.api_base.clone())
-            .unwrap_or_else(|| "https://opencode.ai/zen/v1".to_string());
+            .unwrap_or_else(|| zesdex_domain::agent::defaults::DEFAULT_API_BASE.to_string());
 
         let api_key = crate::llm::provider::resolve_api_key(&settings, &app_config);
 

apps/infrastructure/src/tools/utility/todofinish.rs

@@ -68,8 +68,9 @@ impl Tool for Todofinish {
             content = new_lines.join("\n") + "\n";
             let _ = std::fs::write(&todo_path, &content);
             if let Some(events) = &ctx.turn_events {
-                let mut q = events.lock().unwrap();
-                q.push_back(crate::TurnEvent::TodoUpdate(content));
+                if let Ok(mut q) = events.lock() {
+                    q.push_back(crate::TurnEvent::TodoUpdate(content));
+                }
             }
             info!(item, "TODO item completed and written back");
         } else {

apps/infrastructure/src/tools/utility/todowrite.rs

@@ -62,8 +62,9 @@ impl Tool for Todowrite {
         let _ = std::fs::write(&todo_path, &content);
 
         if let Some(events) = &ctx.turn_events {
-            let mut q = events.lock().unwrap();
-            q.push_back(crate::TurnEvent::TodoUpdate(content));
+            if let Ok(mut q) = events.lock() {
+                q.push_back(crate::TurnEvent::TodoUpdate(content));
+            }
         }
 
         info!(item, priority, "TODO item added");

apps/infrastructure/src/tools/workflow.rs

@@ -62,7 +62,7 @@ impl Tool for WorkflowRun {
 
         let llm_client = LlmClient::new(
             crate::llm::provider::DEFAULT_API_KEY.to_string(),
-            "deepseek-v4-flash-free".to_string(),
+            zesdex_domain::agent::defaults::DEFAULT_MODEL.to_string(),
             None,
         );
         let rt = tokio::runtime::Runtime::new()?;