feat: répondre au clavier (chiffres, Entrée, Backspace) sur desktop

sharedUI/src/commonMain/kotlin/com/livrets/ui/GameScreen.kt

@@ -1,6 +1,7 @@
 package com.livrets.ui
 
 import androidx.compose.foundation.background
+import androidx.compose.foundation.focusable
 import androidx.compose.foundation.layout.Arrangement
 import androidx.compose.foundation.layout.Column
 import androidx.compose.foundation.layout.Row
@@ -31,7 +32,12 @@ import androidx.compose.runtime.setValue
 import androidx.compose.ui.Alignment
 import androidx.compose.ui.Modifier
 import androidx.compose.ui.backhandler.BackHandler
+import androidx.compose.ui.focus.FocusRequester
+import androidx.compose.ui.focus.focusRequester
 import androidx.compose.ui.graphics.Color
+import androidx.compose.ui.input.key.key
+import androidx.compose.ui.input.key.onPreviewKeyEvent
+import androidx.compose.ui.input.key.type
 import androidx.compose.ui.text.style.TextAlign
 import androidx.compose.ui.unit.dp
 import androidx.compose.ui.unit.sp
@@ -85,11 +91,32 @@ private fun PlayingContent(
     progress: Float,
     onQuitRequest: () -> Unit,
 ) {
+    val focusRequester = remember { FocusRequester() }
+    LaunchedEffect(Unit) { focusRequester.requestFocus() }
     Column(
         modifier = Modifier
             .fillMaxSize()
             .windowInsetsPadding(WindowInsets.safeDrawing)
-            .padding(24.dp),
+            .padding(24.dp)
+            .focusRequester(focusRequester)
+            .focusable()
+            .onPreviewKeyEvent { event ->
+                when (val action = GameKeyMapping.actionFor(event.key, event.type)) {
+                    is KeypadAction.Digit -> {
+                        engine.onDigit(action.char)
+                        true
+                    }
+                    KeypadAction.Delete -> {
+                        engine.onDelete()
+                        true
+                    }
+                    KeypadAction.Validate -> {
+                        engine.onValidate()
+                        true
+                    }
+                    null -> false
+                }
+            },
         horizontalAlignment = Alignment.CenterHorizontally,
     ) {
         Row(