fix(knip): restore pwsh-sandbox entry body mangled by merge

The merge-forward collapsed the pwsh-sandbox key with the parent's
e2b entry into invalid JSON; restore the branch's original entry
alongside the kept e2b entry.

knip.json

@@ -233,6 +233,15 @@
       ]
     },
     "packages/bash/pwsh-sandbox": {
+      "entry": [
+        "tests/**/*.spec.ts",
+        "tests/**/*.e2e.ts"
+      ],
+      "project": [
+        "src/**/*.ts",
+        "tests/**/*.ts"
+      ]
+    },
     "packages/e2b/e2b": {
       "entry": [
         "tests/**/*.spec.ts",