build(cli): add tsconfig and typescript dev dep for type-checking

The cli package had no tsconfig, so it was never type-checked under its own
config. Add a tsconfig (matching the other packages, minus JSX which cli does
not use) and the typescript dev dep so `tsc --noEmit` can run here — a
prerequisite for the upcoming check:type script.

packages/cli/package.json

@@ -28,6 +28,7 @@
   },
   "devDependencies": {
     "@types/node": "catalog:",
+    "typescript": "^6.0.3",
     "vite-plus": "catalog:"
   }
 }

packages/cli/tsconfig.json

@@ -0,0 +1,19 @@
+{
+  "compilerOptions": {
+    "target": "esnext",
+    "lib": ["es2023"],
+    "moduleDetection": "force",
+    "module": "nodenext",
+    "moduleResolution": "nodenext",
+    "resolveJsonModule": true,
+    "types": ["node"],
+    "strict": true,
+    "noUnusedLocals": true,
+    "noEmit": true,
+    "allowImportingTsExtensions": true,
+    "esModuleInterop": true,
+    "isolatedModules": true,
+    "verbatimModuleSyntax": true,
+    "skipLibCheck": true
+  }
+}

pnpm-lock.yaml

@@ -158,6 +158,9 @@ importers:
       '@types/node':
         specifier: 'catalog:'
         version: 24.12.4
+      typescript:
+        specifier: ^6.0.3
+        version: 6.0.3
       vite-plus:
         specifier: 'catalog:'
         version: 0.1.22(@types/node@24.12.4)(@voidzero-dev/vite-plus-core@0.1.22(@types/node@24.12.4)(esbuild@0.28.0)(tsx@4.22.3)(typescript@6.0.3))(esbuild@0.28.0)(tsx@4.22.3)(typescript@6.0.3)