fix: emoji column alignment + remove '· exit 0' from success output

- Add unicode-width crate, emoji_cell() pads 1-wide symbols (ℹ, ☀) to 2 cols
- All action/status cells now occupy exactly 2 terminal display columns
- exec success: show only first output line, no trailing '· exit 0'

crates/client/Cargo.toml

@@ -25,6 +25,7 @@ png = "0.17"
 futures-util = "0.3"
 colored = "2"
 terminal_size = "0.3"
+unicode-width = "0.1"
 
 [build-dependencies]
 winres = "0.1"

crates/client/src/display.rs

@@ -1,10 +1,22 @@
 /// Terminal display helpers — table-style command rows with live spinner.
 ///
 /// Layout (no borders, aligned columns):
-///   {2 spaces}{action_emoji}{2 spaces}{name:<NAME_W}{2 spaces}{payload:<payload_w}{2 spaces}{status_emoji}{2 spaces}{result}
+///   {2 spaces}{action_emoji (2 display cols)}{2 spaces}{name:<NAME_W}{2 spaces}{payload:<payload_w}{2 spaces}{status_emoji}{2 spaces}{result}
 use std::io::Write;
 
 use colored::Colorize;
+use unicode_width::UnicodeWidthStr;
+
+/// Pad an emoji/symbol string to exactly 2 terminal display columns.
+/// Some symbols (ℹ, ☀, ⚠ …) render as 1-wide; we add a space so columns align.
+fn emoji_cell(s: &str) -> String {
+    let w = UnicodeWidthStr::width(s);
+    if w < 2 {
+        format!("{s} ")
+    } else {
+        s.to_string()
+    }
+}
 
 // Fixed column widths (in terminal display columns, ASCII-only content assumed for name/payload/result)
 const NAME_W: usize = 14;
@@ -52,12 +64,13 @@ fn format_row(action: &str, name: &str, payload: &str, status: &str, result: &st
     let (payload_w, result_w) = col_widths();
     let p = trunc(payload, payload_w);
     let r = trunc(result, result_w);
+    // emoji_cell ensures every action/status occupies exactly 2 terminal columns
     format!(
         "  {}  {:<name_w$}  {:<payload_w$}  {}  {}",
-        action,
+        emoji_cell(action),
         name,
         p,
-        status,
+        emoji_cell(status),
         r,
         name_w = NAME_W,
         payload_w = payload_w,

crates/client/src/main.rs

@@ -391,10 +391,8 @@ async fn handle_message(
                         } else {
                             format!("{first_line}  ·  exit {exit_code}")
                         }
-                    } else if first_line.is_empty() {
-                        "exit 0".to_string()
                     } else {
-                        format!("{first_line}  ·  exit 0")
+                        first_line  // success: just the output, no "exit 0"
                     };
                     display::cmd_done("⚡", "exec", &payload, exit_code == 0, &result);
                     let _ = stderr;