docs: update README for v0.11.7 Beta — all new features documented
Added sections for: Device Tags, Availability Tracking, Network Topology
improvements (LLDP-authoritative, manual links, orphan detection), Device
Network Tools table (Ping/Traceroute/IP Scan/WoL/Packet Capture/Bandwidth
Test), Scheduled Backups, Maintenance Windows, Audit Log, Configuration
Templates, and TOTP 2FA. Alert delivery channels listed. Project structure
updated to note audit middleware. Version bumped to 0.11.7 Beta.
2GT-Rich
bf62b9e10f