Add TypeScript configurations for test files

- tsconfig.test.json: Extends base config for test file type checking
- .config/tsconfig.check.json: Check config including test files

Enables proper TypeScript support for test directory.

Author: jdalton

.config/tsconfig.check.json

@@ -0,0 +1,13 @@
+{
+  "extends": "../tsconfig.json",
+  "compilerOptions": {
+    "noEmit": true,
+    "rootDir": "..",
+    "types": ["node", "vitest"],
+    "skipLibCheck": true,
+    "strict": false,
+    "noImplicitAny": false
+  },
+  "include": ["../src/**/*.ts", "../test/**/*.ts", "../test/**/*.mts"],
+  "exclude": ["../node_modules", "../dist/**/*"]
+}

tsconfig.test.json

@@ -0,0 +1,9 @@
+{
+  "extends": "./tsconfig.json",
+  "compilerOptions": {
+    "rootDir": ".",
+    "types": ["node", "vitest"]
+  },
+  "include": ["test/**/*.ts", "test/**/*.mts", "src/**/*.ts"],
+  "exclude": ["node_modules", "dist/**/*"]
+}