v0.5.47

Firewall redesign, active router deletion, GPU reduction, security fixes

Added

• Firewall Chain Count card (public/index.html, public/app.js) — replaces the Total Hits sparkline; shows rule counts per chain type (forward / input / output / srcnat / dstnat / prerouting / postrouting etc.) aggregated across all four tables, rendered as a colour-coded vertical bar chart that fills the card height. Blue = filter-family chains, green = NAT chains, orange = mangle/raw chains
• Active router deletion (src/db.js, src/index.js, public/app.js) — the active router can now be deleted; MikroDash auto-promotes the next available router (hot-swaps session, emits router:active) or enters no-router setup mode when none remain. All historical time-series data for the deleted router is purged via a new db.deleteRouterData(routerId) transaction

Changed

• Firewall collector stream architecture (src/collectors/firewall.js, src/index.js) — reduced from 8 simultaneous streams (4 /listen + 4 counter /print =interval=N) to a single stream covering only the active tab. Tab switches via a new firewall:tab socket event start a fresh stream and stop the previous one; the page suspends the stream entirely when closed. Rule metadata is loaded once via parallel one-shot reads on page open; the ongoing stream uses a trimmed proplist of .id,packets,bytes only and merges counter updates into existing rule objects. Closes #67
• Firewall UI (public/index.html, public/app.js) — removed Top Hits tab and Total Hits sparkline card; Filter is now the default active tab; Chain Count card replaces Total Hits in the summary row

Performance

• GPU compositing reduction (public/index.html, public/app.js) — removed backdrop-filter from #sidenav, .card, #topbar, .scard, and #kbdHint (blur was imperceptible at 70–97% opaque backgrounds but forced each element onto its own GPU compositing layer); traffic chart rAF keepalive throttled to 30 fps; devicePixelRatio capped at 1.5 to halve pixel load on HiDPI displays

Fixed

• CodeQL false positives (src/collectors/traffic.js, src/collectors/ping.js, src/collectors/system.js, src/collectors/interfaceStatus.js) — added // codeql[js/tainted-format-string] and // codeql[js/resource-exhaustion] suppression comments on 7 flagged lines

Security

• Dependency updates — nodemailer and ws patched for reported CVEs; js-yaml updated (PR #82)

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