v0.5.49

Router disable/enable, wireless PTR name resolution, routes flicker fix

Added

• Router disable/enable (src/routers.js, src/index.js, public/app.js, public/index.html) — routers can now be disabled from the Routers page without deleting them; disabled routers are excluded from monitoring sessions, the active-router dropdown, and the Routers stats overview; attempting to disable the currently active router returns a 400 error; disabled rows are visually dimmed with a yellow "Disabled" status badge and an Enable/Disable toggle button in the actions column; a router:disabled socket event automatically switches connected clients to the next available router
• Wireless client hostname resolution for external DHCP (src/collectors/wireless.js) — when the DHCP server is on an external device (OPNSense, pfSense, Pi-hole, etc.) and RouterOS has no lease entries, the wireless collector now falls back to a reverse-DNS (PTR) lookup using the IP from the ARP table; compatible with any DNS resolver that registers PTR records for its DHCP clients (Unbound, dnsmasq, etc.); results are cached 60 s on success / 15 s on failure; no new dependencies

Fixed

• Routes page flashing on connect (src/collectors/routing.js) — debounced the emit in both /ip/route/listen and /ipv6/route/listen stream callbacks (100 ms) to collapse RouterOS's initial-snapshot burst into a single emit, eliminating the visible flicker when navigating to the Routes page. Closes #86

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