fix(ci): add DOM + node lib support for tsc --noEmit lint

The CI lint step (tsc --noEmit) was failing with 'Cannot find
name fetch/process/console' because the mcp tsconfig omitted
DOM lib and node types. Local tsup builds worked because tsup
has its own type resolution that's more lenient about globals.

Changes
- tsconfig.json: add DOM to lib, add types: ["node"], exclude
  **/*.test.ts from lint (matching the sdk tsconfig pattern)
- package.json: add @types/node devDependency
- pnpm-lock.yaml: refreshed

This is a pre-existing lint gap revealed when the lockfile
mismatch blocker was resolved. All tests still pass (19/19).

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

Author: BarisSozen

package.json

@@ -30,6 +30,7 @@
     "zod": "^3.23.0"
   },
   "devDependencies": {
+    "@types/node": "^25.6.0",
     "tsup": "^8.0.0",
     "typescript": "^5.4.0",
     "vitest": "^4.1.4"

pnpm-lock.yaml

@@ -3,7 +3,8 @@
     "target": "ES2022",
     "module": "ESNext",
     "moduleResolution": "bundler",
-    "lib": ["ES2022"],
+    "lib": ["ES2022", "DOM"],
+    "types": ["node"],
     "strict": true,
     "esModuleInterop": true,
     "skipLibCheck": true,
@@ -12,5 +13,5 @@
     "rootDir": "src"
   },
   "include": ["src"],
-  "exclude": ["node_modules", "dist"]
+  "exclude": ["node_modules", "dist", "**/*.test.ts"]
 }