Feat/restore image generation history (#15223)

Restore image generation items in resumed thread history

codex-rs/tui_app_server/src/app/app_server_adapter.rs

@@ -995,12 +995,13 @@ fn thread_item_to_core(item: &ThreadItem) -> Option<TurnItem> {
             status,
             revised_prompt,
             result,
+            saved_path,
         } => Some(TurnItem::ImageGeneration(ImageGenerationItem {
             id: id.clone(),
             status: status.clone(),
             revised_prompt: revised_prompt.clone(),
             result: result.clone(),
-            saved_path: None,
+            saved_path: saved_path.clone(),
         })),
         ThreadItem::ContextCompaction { id } => {
             Some(TurnItem::ContextCompaction(ContextCompactionItem {
@@ -1850,6 +1851,7 @@ mod tests {
                         status: "completed".to_string(),
                         revised_prompt: Some("diagram".to_string()),
                         result: "image.png".to_string(),
+                        saved_path: None,
                     },
                     ThreadItem::ContextCompaction {
                         id: "compact-1".to_string(),

codex-rs/tui_app_server/src/chatwidget.rs

@@ -5725,13 +5725,14 @@ impl ChatWidget {
                 status,
                 revised_prompt,
                 result,
+                saved_path,
             } => {
                 self.on_image_generation_end(ImageGenerationEndEvent {
                     call_id: id,
                     result,
                     revised_prompt,
                     status,
-                    saved_path: None,
+                    saved_path,
                 });
             }
             ThreadItem::EnteredReviewMode { review, .. } => {