fix: terminal display cutoff and rendering issues

.github/workflows/release.yml

@@ -267,7 +267,8 @@ jobs:
       - name: Generate checksums
         run: |
           cd artifacts
-          sha256sum * > checksums-sha256.txt
+          # Exclude MSI — it will be replaced by a locally signed version
+          sha256sum $(ls | grep -v '\.msi$') > checksums-sha256.txt
           cat checksums-sha256.txt
 
       - name: Create GitHub Release

.gitignore

@@ -7,9 +7,13 @@
 # -----------------------------------------------------------------------------
 
 
+# Claude Code project instructions (local only)
+CLAUDE.md
+
 # Development plans
 plans/
 docs/superpowers/
+docs/specs/
 
 # Superpowers skill state
 .superpowers/

crates/codirigent-ui/src/terminal_runtime.rs

@@ -199,10 +199,12 @@ impl TerminalRuntime {
     fn snapshot_from_damage(&mut self) -> TerminalRenderSnapshot {
         let rows = self.terminal.rows() as usize;
         let cols = self.terminal.cols() as usize;
-        let damage = if self
-            .cached_rows
-            .as_ref()
-            .is_some_and(|cached_rows| cached_rows.len() == rows)
+        let scrolled_back = self.terminal.term().grid().display_offset() > 0;
+        let damage = if !scrolled_back
+            && self
+                .cached_rows
+                .as_ref()
+                .is_some_and(|cached_rows| cached_rows.len() == rows)
         {
             let term = self.terminal.term_mut();
             let damage = match term.damage() {

crates/codirigent-ui/src/workspace/impl_output_polling/hook_signals.rs

@@ -366,6 +366,14 @@ impl WorkspaceView {
 
             let _ = this.update(cx, |this, cx| {
                 this.polling.hook_signal_check_in_flight = false;
+                // Sort by timestamp so that the newest signal for each
+                // session is processed last and wins the cached status.
+                // Without this, non-deterministic read_dir order can let
+                // a stale "idle" signal overwrite a newer "working" signal
+                // when multiple signal files target the same session
+                // (e.g., parent + subagent Claude Code sessions).
+                let mut updates = updates;
+                updates.sort_by_key(|u| u.ts);
                 for update in updates {
                     this.apply_hook_signal_update(update, cx);
                 }

crates/codirigent-ui/src/workspace/impl_session_lifecycle.rs

@@ -1443,19 +1443,19 @@ impl WorkspaceView {
             let codex_started_at = plan.codex_started_at;
             if let Ok(manager) = self.session_manager.lock() {
                 manager.with_session_state_mut(bootstrapped.session_id, |state| {
-                    // session_uuid is set only inside this restore_cli-gated block;
-                    // the local session struct receives the same guard at the assignment below.
-                    state.session.session_uuid = plan.session_uuid.clone();
                     state.session.codex_execution_mode = codex_execution_mode;
                     state.session.codex_started_at = codex_started_at;
                 });
             }
         }
 
+        // NOTE: Do NOT overwrite session.session_uuid with plan.session_uuid here.
+        // The PTY was already spawned with the UUID from Session::new() as the
+        // CODIRIGENT_SESSION_UUID env var. Overwriting with the saved UUID from a
+        // previous app instance creates a mismatch: hook signals carry the PTY's
+        // UUID but the workspace session has the old one, causing routing to fail
+        // and status to stay stuck on Idle.
         let mut session = bootstrapped.session;
-        if restore_cli {
-            session.session_uuid = plan.session_uuid.clone();
-        }
         session.shell = bootstrapped.request.requested_shell.clone();
         session.group = plan.group.clone();
         session.color = plan.color.clone();

crates/codirigent-ui/src/workspace/terminal_render.rs

@@ -201,6 +201,11 @@ impl WorkspaceView {
                     }
                 }
 
+                // 0. Fill canvas with terminal background so empty rows (default-color cells
+                //    that produce no bg_rects_hsla entries) don't show panel_bg below them.
+                //    This fixes the visual "cut-off" after dragging to a larger pane.
+                window.paint_quad(gpui::fill(bounds, terminal_bg));
+
                 // 1. Paint background rectangles
                 for row in &cached_rows {
                     for (rect_row, start_col, end_col, bg_color) in row.bg_rects_hsla.iter() {