Enhanced UNC Path Detection

What: Expanded detection of Universal Naming Convention (UNC) paths that could access network shares and remote resources.

Details:

• Comprehensive pattern detection - Now detects 6 different UNC path patterns (previously only 1):
• Traditional backslash notation: \\server\share
• Forward-slash notation: //server/share
• WebDAV paths containing DavWWWRoot
• IPv4-based paths: \\192.168.1.1\share
• IPv6-based paths: \\[2001:db8::1]\share
• SSL/port notation variations: @SSL@443, @443@SSL
• Defense-in-depth check - Added explicit UNC path verification in permission checking that triggers before other path validation, requiring manual user approval with message: "Claude requested permissions to read from {path}, which appears to be a UNC path that could access network resources"
• Evidence: kB1() at line 469623, Cm() at line 474419 (new UNC check at lines 474427-474436)