feat: add Check Point VPN detection, fix Homebrew tap and stale URLs

[GeiserX]

Summary

• Check Point VPN detection ([Feature]: CHECK POINT Endpoint Security #4): Added process-based detection for Check Point Endpoint Security VPN (Endpoint_Security_VPN, TracSrvWrapper, cpdaApp, cpefrd). Enum case, icon, and README table updated.
• Homebrew tap fix ([Bug]: brew tapping doesn't work #5): brew tap geiserx/tap pointed to a non-existent repo. Fixed to brew tap geiserx/vpn-bypass.
• Stale URL cleanup: Replaced all remaining vpn-macos-bypass references with VPN-Bypass across README, issue templates, cask comment, and SettingsView.

Closes #4, Closes #5

Test plan

• Verify brew tap geiserx/vpn-bypass works
• Verify Check Point detection with a live Check Point install (or mock ps output)
• Verify all GitHub links in README, issue templates, and settings resolve correctly