fix(tui): restore interleave_images, dropped by the typing-backoff commit

c9ccb4f01 was assembled by copying files out of a scratch worktree, and the copy
of app.rs predated 524032dfd, so it silently reverted that commit's
interleave_images field and its two initializers plus the reset in
tui_lifecycle. That left master unable to compile jcode-tui.

Copying whole files between trees is the root cause here; targeted edits would
have made the conflict visible instead of quietly reverting someone else's work.

crates/jcode-tui/src/tui/app.rs

@@ -1464,6 +1464,8 @@ pub struct App {
     active_experimental_feature_notice: Option<String>,
     // Message to interleave during processing (set via Ctrl+Enter in queue mode)
     interleave_message: Option<String>,
+    // Image attachments associated with the staged interleave message.
+    interleave_images: Vec<(String, String)>,
     // Message sent as soft interrupt but not yet injected (shown in queue preview until injected)
     pending_soft_interrupts: Vec<String>,
     // Soft interrupts written to the socket but not yet acknowledged by the server.

crates/jcode-tui/src/tui/app/tui_lifecycle.rs

@@ -28,6 +28,7 @@ impl App {
             self.push_display_message(DisplayMessage::system(message).with_title(title));
         }
         self.interleave_message = None;
+        self.interleave_images.clear();
         self.rate_limit_pending_message = restored.rate_limit_pending_message;
         self.rate_limit_reset = restored.rate_limit_reset;
         self.observe_page_markdown = restored.observe_page_markdown;
@@ -642,6 +643,7 @@ impl App {
             experimental_feature_warnings_seen: HashSet::new(),
             active_experimental_feature_notice: None,
             interleave_message: None,
+            interleave_images: Vec::new(),
             pending_soft_interrupts: Vec::new(),
             pending_soft_interrupt_requests: Vec::new(),
             autoreview_after_current_turn: false,
@@ -1077,6 +1079,7 @@ impl App {
             experimental_feature_warnings_seen: HashSet::new(),
             active_experimental_feature_notice: None,
             interleave_message: None,
+            interleave_images: Vec::new(),
             pending_soft_interrupts: Vec::new(),
             pending_soft_interrupt_requests: Vec::new(),
             autoreview_after_current_turn: false,