chat: raise the keyboard when the field is tapped

surfaces/quickshell/modules/ii/sidebarLeft/AiChat.qml

@@ -590,6 +590,26 @@ Inline w/ backslash and round brackets \\(e^{i\\pi} + 1 = 0\\)
 
                         background: null
 
+                        // Input-method focus is evidence that typing is
+                        // possible, not a reliable request to show the OSK.
+                        // ViewTop preserves focus across a keyboard dismiss,
+                        // so a second tap may not produce another focus edge.
+                        // Drive both paths: focus raises it the first time;
+                        // every deliberate tap raises it again after a user
+                        // dismissal. The user-close path remains authoritative
+                        // and no hold is taken merely because chat is open.
+                        onActiveFocusChanged: {
+                            if (activeFocus)
+                                GlobalStates.oskOpen = true;
+                        }
+
+                        TapHandler {
+                            onTapped: {
+                                messageInputField.forceActiveFocus();
+                                GlobalStates.oskOpen = true;
+                            }
+                        }
+
                         onTextChanged: {
                             // Handle suggestions
                             if (messageInputField.text.length === 0) {