v1.2.1: add hidden input bridge for soft keyboard

- Added transparent BasicTextField (0x0) to trigger soft keyboard
- Tapping terminal area now shows input method
- Removed keyCode-based character capture (didn't work with IME)
- Enter detection via OnValueChange (\n in text)
- Hardware keyboard still handled via onKeyEvent

app/src/main/java/ai/openclaw/app/ui/tergent/SshTerminalScreen.kt

@@ -10,6 +10,7 @@ import androidx.compose.foundation.lazy.rememberLazyListState
 import androidx.compose.foundation.rememberScrollState
 import androidx.compose.foundation.shape.RoundedCornerShape
 import androidx.compose.foundation.text.BasicTextField
+import androidx.compose.ui.text.input.TextFieldValue
 import androidx.compose.material.icons.Icons
 import androidx.compose.material.icons.filled.CheckCircle
 import androidx.compose.material.icons.filled.Close
@@ -462,32 +463,6 @@ fun SshTerminalScreen(
         }
     }
 
-    fun handleCharacterInput(event: KeyEvent): Boolean {
-        if (!state.connected) return false
-        if (event.type != KeyEventType.KeyUp) return false
-
-        return when (event.key) {
-            Key.Enter, Key.Backspace, Key.Tab,
-            Key.Escape, Key.F1, Key.F2, Key.F3, Key.F4, Key.F5, Key.F6,
-            Key.F7, Key.F8, Key.F9, Key.F10, Key.F11, Key.F12,
-            Key.DirectionUp, Key.DirectionDown, Key.DirectionLeft, Key.DirectionRight,
-            Key.PageUp, Key.PageDown, Key.MoveHome, Key.MoveEnd,
-            Key.Insert, Key.Delete, Key.CapsLock,
-            Key.ShiftLeft, Key.ShiftRight, Key.CtrlLeft, Key.CtrlRight,
-            Key.AltLeft, Key.AltRight, Key.MetaLeft, Key.MetaRight -> false
-
-            else -> {
-                val c = event.key.nativeKeyCode.toChar()
-                if (c.isISOControl()) return false
-                if (event.isCtrlPressed) return false
-                if (event.isAltPressed) return false
-                if (event.isMetaPressed) return false
-                currentInput += c
-                true
-            }
-        }
-    }
-
     val focusModifier = remember { FocusRequester() }
 
     // 连接后自动获取焦点
@@ -497,15 +472,41 @@ fun SshTerminalScreen(
         }
     }
 
+    // 透明输入桥 — 用于弹出软键盘
+    
     Box(
         modifier = modifier
             .fillMaxSize()
             .background(bg)
             .onKeyEvent { handleKeyEvent(it) }
-            .onPreviewKeyEvent { handleCharacterInput(it) }
             .focusRequester(focusModifier)
-            .onFocusChanged { }
+            
+            .clickable { focusModifier.requestFocus() }
     ) {
+        // 透明输入框 — 0 高度 + Invisible，仅用来弹出软键盘
+        BasicTextField(
+            value = TextFieldValue(currentInput),
+            onValueChange = { newVal ->
+                val old = currentInput
+                currentInput = newVal.text
+                // 检测回车：如果内容有换行符说明用户按了发送
+                if (newVal.text.contains('\n')) {
+                    val cmd = newVal.text.replace("\n", "").trim()
+                    if (cmd.isNotEmpty()) {
+                        coroutineScope.launch {
+                            manager.sendCommand(cmd)
+                        }
+                    }
+                    currentInput = ""
+                }
+            },
+            modifier = Modifier
+                .size(0.dp, 0.dp)  // 零尺寸，不占据空间
+                .focusRequester(focusModifier),
+            singleLine = true,
+            textStyle = TextStyle(color = Color.Transparent, fontSize = 1.sp)
+        )
+
         Column(
             modifier = Modifier
                 .fillMaxSize()