fix(attach): reset attributes before drawing input line

When safe_truncate cuts off \x1b[0m from a colorized log line, the
foreground color leaks onto the > prompt. Emit RESET before GRAY_BG
to ensure the input line always starts with a clean slate.

src/attach.rs

@@ -181,6 +181,7 @@ fn draw_all(
     let visible: String = input.chars().skip(scroll).take(max_visible).collect();
 
     out.push_str(&format!("\x1b[{};1H", rows));
+    out.push_str(RESET);
     out.push_str(GRAY_BG);
     out.push_str(prompt);
     out.push_str(&visible);