Fix DNS Probe Finished NXDOMAIN Caused by Antivirus Blocking - Fix VSCode IntelliSense Not Working with TypeScript-pip Install Refuses: Externally Managed Environment Workaround

Prepare
Execute
Validate
Document
Operational follow-up
- Record the exact option, command, or setting that changed the result.
- Keep a rollback note if the workflow affects shared files or team settings.