chore: scaffold, CI, and the export bundle verbatim

The export bundle is the input to this port, not a sketch: the curriculum,
the tutor prompt and the five logic modules are finished and tested. They
land here byte-identical and stay that way.

  diff -r export/data data && diff -r export/lib lib
  diff -r export/prompt prompt && diff export/validate.mjs validate.mjs

data/, lib/, prompt/ and validate.mjs sit at the repo root so validate.mjs
runs verbatim with no path edits. All four are excluded from lint and
formatting — they are not ours to restyle. Types for lib/ live alongside in
types/ rather than as sibling .d.ts files, so the verbatim check stays a
plain directory diff.

CI runs the curriculum gate first, before anything else can pass:

  node validate.mjs   PASS — 0 blocking, 0 advisory

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>

tsconfig.json

@@ -0,0 +1,37 @@
+{
+  "compilerOptions": {
+    "target": "ES2022",
+    "lib": ["ES2022", "DOM", "DOM.Iterable"],
+    "module": "ESNext",
+    "moduleResolution": "bundler",
+    "types": ["node", "vite/client"],
+
+    "strict": true,
+    "noUncheckedIndexedAccess": true,
+    "noImplicitOverride": true,
+    "noFallthroughCasesInSwitch": true,
+    "exactOptionalPropertyTypes": false,
+
+    "jsx": "react-jsx",
+    "resolveJsonModule": true,
+    "isolatedModules": true,
+    "verbatimModuleSyntax": true,
+    "skipLibCheck": true,
+    "esModuleInterop": true,
+    "allowJs": true,
+    "checkJs": false,
+    "noEmit": true,
+
+    // lib/ ships unchanged; its types live alongside in types/lib/.
+    // Vite resolves the same specifiers to the real .js modules.
+    "baseUrl": ".",
+    "paths": {
+      "@lib/*": ["./types/lib/*"],
+      "@data/*": ["./data/*"],
+      "@app/*": ["./app/src/*"],
+      "@shared/*": ["./types/shared/*"]
+    }
+  },
+  "include": ["app/src", "test", "types", "app/vite.config.ts", "vitest.config.ts"],
+  "exclude": ["node_modules", "dist", "export", "vendor", "android", "app/android"]
+}