v1.7.7 — Optimize, light mode, feeds toggle

Configurable background work without removing features, per-theme light palettes, and an RSS feeds disable switch.

What changed

Selective sysinfo — targeted CPU/memory/disk/network refresh instead of refresh_all() every tick
Docker + LXC caches — configurable poll intervals (default 10s); Arc LXC handoff (no per-tick clone)
Reused Disks/Components — less allocation churn across telemetry loops
GPU probe backoff — skip repeated nvidia-smi when absent
Agent config sync — enable_proxmox, agent_telemetry_interval_secs, agent_lxc_poll_interval_secs, agent_docker_poll_interval_secs

Idle poller gating — status, media, HA, and integration coordinator back off when inactive
Telemetry broadcast — configurable interval; guest JSON variants only when guest WebSocket clients are connected
Integration cache hot-reload — TTL and max entries apply on settings save
Settings → Integrations → Performance & resources — feeds toggle, cache limits, advanced poll intervals

feeds_enabled (default on) — disables background RSS polling, hides /feeds nav and page, returns { "error": "feeds_disabled" } for RSS integration API; feed rows stay in the database

Per-theme light palettes — all bundled themes (plus default) define their own light tokens instead of one global gray stack
Settings live preview — reads loaded theme CSS variables in light mode

curl -sSL https://github.com/boubli/AMUD-Dashboard/releases/download/v1.7.7/update-amud.sh | bash

Docker / Unraid: Force Update both containers to v1.7.7, then recreate AMUD-Dashboard.

Hard refresh after update (Ctrl+Shift+R) so new theme CSS and the service worker load.