agents: add local workspace package.json for isolated agents workspace; excluding root tsconfig.base.json.

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Co-Authored-By: Codebuff <noreply@codebuff.com>

Author: brandonkachen

.agents/package.json

@@ -0,0 +1,9 @@
+{
+  "name": "@codebuff/agents",
+  "version": "0.0.0",
+  "private": true,
+  "type": "module",
+  "scripts": {
+    "typecheck": "bun x tsc --noEmit -p tsconfig.json"
+  }
+}