Initial commit: Interactives site

Astro-based site with 40+ interactive math games, puzzles, and explorations.
Includes admin dashboard, todo system, blog, theme/subcategory navigation,
and embed pages for iframe embedding.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

tsconfig.json

@@ -0,0 +1,20 @@
+{
+  "extends": "astro/tsconfigs/strict",
+  "compilerOptions": {
+    "strictNullChecks": true,
+    "jsx": "react-jsx",
+    "jsxImportSource": "react",
+    "baseUrl": ".",
+    "paths": {
+      "@/*": ["./src/*"],
+      "@code/*": ["./code/*"],
+      "@components/*": ["./src/components/*"],
+      "@layouts/*": ["./src/layouts/*"],
+      "@lib/*": ["./src/lib/*"]
+    },
+    "exactOptionalPropertyTypes": false,
+    "allowJs": true
+  },
+  "include": [".astro/types.d.ts", "**/*"],
+  "exclude": ["node_modules", ".vercel", ".netlify", "dist"]
+}