fix: flush char forwarded as raw key — space no longer in clipboard paste

- Engine no longer includes flush char in Replace insert text
- Daemon forwards raw flush key (space/enter/etc) after injection
- Clipboard paste only contains the word, not trailing whitespace
- Fixes 'thịtrâm' → 'thị trâm' (space reliably arrives via raw forward)

daemon/src/main.rs

@@ -902,6 +902,12 @@ fn run_with_evdev(
                             if !commands.is_empty() {
                                 consumed_keys.insert(keycode);
                                 execute_commands(&*injector, &commands, false);
+                                // Flush chars: forward raw key after injection
+                                // (engine no longer includes flush char in insert)
+                                if is_flush_char(ch) {
+                                    injector.send_key_event(keycode, 1);
+                                    injector.send_key_event(keycode, 0);
+                                }
                                 // Skip upcoming auto-repeat pile-up from injection delay
                                 skip_count = 3;
                             } else if is_vn_control_key(&daemon.config.input_method, ch) {

engine/src/engine.rs

@@ -167,15 +167,16 @@ impl Engine {
                 self.reset();
                 return Some(EngineEvent::Replace {
                     backspaces: prev_len,
-                    insert: format!("{}{}", expansion, ch),
+                    insert: expansion,
                 });
             }
 
             self.reset();
             if prev_len > 0 {
+                // Don't include flush char in insert — daemon forwards it separately
                 return Some(EngineEvent::Replace {
                     backspaces: prev_len,
-                    insert: format!("{}{}", previous, ch),
+                    insert: previous,
                 });
             }
             return None;