feat: Dashboard stats from OCM API, fix module warnings (v0.10.1)

- Rename postcss.config.js/tailwind.config.js to .cjs to fix ESM warning
- Replace Stats Summary placeholder with real OCM /api/stats data
- Handle loading, error, and offline states gracefully
- Bump version to 0.10.1

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

tailwind.config.cjs

@@ -0,0 +1,20 @@
+/** @type {import('tailwindcss').Config} */
+module.exports = {
+  content: ['./src/**/*.{html,js,ts,jsx,tsx}'],
+  theme: {
+    extend: {
+      colors: {
+        odo: {
+          bg: '#0f1117',
+          surface: '#1a1d27',
+          border: '#2a2d3a',
+          accent: '#6366f1',
+          'accent-hover': '#818cf8',
+          text: '#e2e8f0',
+          'text-dim': '#94a3b8',
+        },
+      },
+    },
+  },
+  plugins: [],
+};