feat: add phase 1 fastapi backend and frontend

Co-authored-by: aider (openrouter/thinkingmachines/inkling-small:free) <aider@aider.chat>

frontend/index.html

@@ -0,0 +1,29 @@
+<!DOCTYPE html>
+<html lang="en">
+<head>
+  <meta charset="UTF-8">
+  <meta name="viewport" content="width=device-width, initial-scale=1.0">
+  <title>Kubectl Web GUI</title>
+  <link rel="stylesheet" href="style.css">
+</head>
+<body>
+  <header>
+    <h1>Kubectl Web GUI</h1>
+  </header>
+  <main>
+    <section id="selectors">
+      <label for="context">Context:</label>
+      <select id="context"><option>Loading...</option></select>
+
+      <label for="namespace">Namespace:</label>
+      <select id="namespace"><option>default</option></select>
+    </section>
+
+    <section id="resources">
+      <h2>Pods</h2>
+      <ul id="pod-list"><li>Loading...</li></ul>
+    </section>
+  </main>
+  <script src="app.js"></script>
+</body>
+</html>