Move env closer Playwright configuration

Ensures Playwright itself has the configuration needed for the
Inspector.  Also allows future env without additional clutter in
`package.json`.

Author: richardkmichael

client/playwright.config.ts

@@ -10,6 +10,9 @@ export default defineConfig({
     command: "npm run dev",
     url: "http://localhost:6274",
     reuseExistingServer: !process.env.CI,
+    env: {
+      MCP_AUTO_OPEN_ENABLED: "false",
+    },
   },
 
   testDir: "./e2e",

package.json

@@ -37,7 +37,7 @@
     "start-client": "cd client && npm run preview",
     "test": "npm run prettier-check && cd client && npm test",
     "test-cli": "cd cli && npm run test",
-    "test:e2e": "MCP_AUTO_OPEN_ENABLED=false npm run test:e2e --workspace=client",
+    "test:e2e": "npm run test:e2e --workspace=client",
     "prettier-fix": "prettier --write .",
     "prettier-check": "prettier --check .",
     "lint": "prettier --check . && cd client && npm run lint",