chore: add .agents workspace to monorepo workspaces; enable local agents

development and isolated typechecking

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Author: brandonkachen

bun.lock

@@ -12,7 +12,8 @@
     "packages/*",
     "scripts",
     "evals",
-    "sdk"
+    "sdk",
+    ".agents"
   ],
   "scripts": {
     "dev": "bash scripts/dev.sh",