fix(tui): keep splash legend when version is longer

Ellipsize v{version} instead of dropping @ files · ! shell
so 40x12 chrome stays complete for v0.1.10 and later.

Co-authored-by: Mathis <echobt@users.noreply.github.com>

Author: cursoragent

src/cortex-tui/src/lock_boards.rs

@@ -785,26 +785,51 @@ fn bar(filled: u16, total: u16) -> String {
     s
 }
 
-/// Splash hint row: full, 40-col, or short — picked by character budget.
-/// Uses the full area width (not [`inner_width`]) so `v0.1.10` still fits
-/// the 40-column mid form `v{version} · / commands · @ files · ! shell`.
+/// Join `v{version}` to a hint legend, ellipsizing the version — never the
+/// legend — when the pair is wider than `width`.
 pub(crate) fn splash_legend(version: &str, width: usize) -> String {
-    let full_h = format!("v{version} · {LAUNCH_HINTS}");
-    let mid_h = format!("v{version} · {LAUNCH_HINTS_NARROW}");
-    if full_h.chars().count() <= width {
-        full_h
-    } else if mid_h.chars().count() <= width {
-        mid_h
-    } else {
-        format!("v{version} · / commands")
+    let ver = format!("v{version}");
+    for legend in [LAUNCH_HINTS, LAUNCH_HINTS_NARROW] {
+        let line = format!("{ver} · {legend}");
+        if line.chars().count() <= width {
+            return line;
+        }
+    }
+    // Keep `/ commands · @ files · ! shell` (and `& cloud` when it fits).
+    // A longer package version is shortened; the keystroke legend is not.
+    for legend in [LAUNCH_HINTS, LAUNCH_HINTS_NARROW] {
+        let suffix = format!(" · {legend}");
+        let suffix_len = suffix.chars().count();
+        if suffix_len >= width {
+            continue;
+        }
+        let shown = ellipsis_prefix(&ver, width - suffix_len);
+        if shown.is_empty() {
+            continue;
+        }
+        return format!("{shown}{suffix}");
+    }
+    LAUNCH_HINTS_NARROW.to_string()
+}
+
+fn ellipsis_prefix(text: &str, budget: usize) -> String {
+    if text.chars().count() <= budget {
+        return text.to_string();
+    }
+    if budget == 0 {
+        return String::new();
+    }
+    if budget == 1 {
+        return "…".to_string();
     }
+    format!("{}…", text.chars().take(budget - 1).collect::<String>())
 }
 
 /// Launch header: `Welcome to Cortex, the coding agent CLI` then
 /// `v{version} · / commands · …`. No fake `> cortex` or painted cwd.
 fn paint_launch_header(area: Rect, buf: &mut Buffer, full: bool) -> u16 {
-    // Full terminal width: the 40-col lock is exactly the mid hint budget
-    // once the package version is seven characters (`v0.1.10`).
+    // Full terminal width so the 40-col lock can hold the mid legend; a
+    // longer version is ellipsized instead of dropping `@ files · ! shell`.
     let w = area.width.max(1) as usize;
     let mut y = area.y;
     let dim = Style::default().fg(TEXT_DIM);

src/cortex-tui/src/lock_proof.rs

@@ -2338,29 +2338,28 @@ mod tests {
     }
 
     #[test]
-    fn splash_legend_keeps_mid_hints_at_40_for_package_version() {
-        let version = env!("CARGO_PKG_VERSION");
-        let legend = crate::lock_boards::splash_legend(version, 40);
-        assert!(
-            legend.contains("/ commands · @ files · ! shell"),
-            "40-col splash must keep mid hints for v{version}: {legend}"
-        );
-        assert!(
-            !legend.contains("& cloud"),
-            "40-col splash shortens before & cloud: {legend}"
-        );
+    fn splash_legend_keeps_mid_hints_when_version_grows() {
+        for version in [env!("CARGO_PKG_VERSION"), "0.1.10", "10.20.30-rc.1"] {
+            let legend = crate::lock_boards::splash_legend(version, 40);
+            assert!(
+                legend.contains("/ commands · @ files · ! shell"),
+                "40-col splash must keep mid hints for v{version}: {legend}"
+            );
+            assert!(
+                !legend.contains("& cloud"),
+                "40-col splash shortens before & cloud: {legend}"
+            );
+        }
     }
 
     #[test]
     fn splash_has_session_chrome() {
-        let version = env!("CARGO_PKG_VERSION");
-        let mid = format!("v{version} · / commands · @ files · ! shell");
         for size in SIZES {
             let frame = render_lock_scene("splash", size.0, size.1).expect("splash");
             for needle in [
                 "Welcome to",
                 "the coding agent CLI",
-                "/ commands",
+                "/ commands · @ files · ! shell",
                 "Plan, search, build anything",
                 "Cortex Mini 1",
             ] {
@@ -2370,13 +2369,6 @@ mod tests {
                     frame.plain
                 );
             }
-            if mid.chars().count() <= size.0 as usize {
-                assert!(
-                    frame.plain.contains(&mid),
-                    "splash missing mid chrome `{mid}` at {size:?}:\n{}",
-                    frame.plain
-                );
-            }
             assert!(!frame.plain.contains("▄█▀▀▀▀█▄"), "{}", frame.plain);
             assert!(
                 !frame.plain.contains("> cortex"),