kotlin upgraded, site started

site/src/jsMain/kotlin/Main.kt

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+/*
+ * Copyright 2025 Sergey S. Chernov real.sergeych@gmail.com
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ */
+
+import androidx.compose.runtime.getValue
+import androidx.compose.runtime.mutableStateOf
+import androidx.compose.runtime.remember
+import androidx.compose.runtime.setValue
+import org.jetbrains.compose.web.dom.*
+import org.jetbrains.compose.web.renderComposable
+
+fun main() {
+    renderComposable(rootElementId = "root") {
+        // Minimal SPA shell
+        Div({ classes("container", "py-4") }) {
+            H1({ classes("display-6", "mb-3") }) { Text("Compose HTML SPA") }
+            P({ classes("lead") }) {
+                Text("This static site is powered by Compose for Web (JS-only) and Bootstrap 5.3.")
+            }
+
+            Hr()
+
+            // Example of interactive state to show SPA behavior
+            var count by remember { mutableStateOf(0) }
+            Div({ classes("d-flex", "gap-2", "align-items-center") }) {
+                Button(attrs = {
+                    classes("btn", "btn-primary")
+                    onClick { count++ }
+                }) { Text("Increment") }
+                Span({ classes("fw-bold") }) { Text("Count: $count") }
+            }
+        }
+    }
+}

site/src/jsMain/resources/index.html

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+<!--
+  ~ Copyright 2025 Sergey S. Chernov real.sergeych@gmail.com
+  ~
+  ~ Licensed under the Apache License, Version 2.0 (the "License");
+  ~ you may not use this file except in compliance with the License.
+  ~ You may obtain a copy of the License at
+  ~
+  ~     http://www.apache.org/licenses/LICENSE-2.0
+  ~
+  ~ Unless required by applicable law or agreed to in writing, software
+  ~ distributed under the License is distributed on an "AS IS" BASIS,
+  ~ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  ~ See the License for the specific language governing permissions and
+  ~ limitations under the License.
+  ~
+  -->
+
+<!doctype html>
+<html lang="en">
+  <head>
+    <meta charset="utf-8" />
+    <meta name="viewport" content="width=device-width, initial-scale=1" />
+    <title>Compose HTML SPA</title>
+    <!-- Bootstrap 5.3 CSS -->
+    <link
+      href="https://cdn.jsdelivr.net/npm/bootstrap@5.3.3/dist/css/bootstrap.min.css"
+      rel="stylesheet"
+      integrity="sha384-QWTKZyjpPEjISv5WaRU9OFeRpok6YctnYmDr5pNlyT2bRjXh0JMhjY6hW+ALEwIH"
+      crossorigin="anonymous"
+    />
+  </head>
+  <body>
+    <div id="root"></div>
+
+    <!-- App bundle (produced by Kotlin/JS). The Gradle config forces this name. -->
+    <script src="site.js"></script>
+
+    <!-- Bootstrap 5.3 JS bundle (includes Popper) -->
+    <script
+      src="https://cdn.jsdelivr.net/npm/bootstrap@5.3.3/dist/js/bootstrap.bundle.min.js"
+      integrity="sha384-YvpcrYf0tY3lHB60NNkmXc5s9fDVZLESaAA55NDzOxhy9GkcIdslK1eN7N6jIeHz"
+      crossorigin="anonymous"
+    ></script>
+  </body>
+  </html>