MikroTik IGMP proxy for Govee discovery; HA Govee rebuilt (local + cloud package)

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

docs/CHANGELOG.md

@@ -11,6 +11,13 @@
 - **[SERVICE]** Scripts: `tv_mode` (day: close curtain; evening: Govee TODO), `living_dining_all_off`, `tv_open_home_assistant` (launches custom webOS app on LG TV).
 - **[SERVICE]** LG TV 65NANO813PA (webOS 6.5.3-47) rooted via slopbro. Homebrew Channel 0.7.3 installed. SSH enabled (root, ed25519 key). Custom webOS app `org.xtrm.homeassistant` v1.0.1 installed as IPK — fullscreen redirect to HA, shows in TV app launcher. No Developer Mode needed.
 
+---
+## 2026-10-11
+
+### MikroTik IGMP proxy + Home Assistant Govee rebuild
+- **[NETWORK]** IGMP proxy: upstream vlan10-mgmt (alt-subnet 192.168.10.102/32), downstream vlan30-iot, for Govee LAN discovery from HA. Caveat: all VLAN 10 multicast for groups joined in VLAN 30 is forwarded mgmt → IoT; the HA-only firewall restriction is pending approval.
+- **[HA]** Removed the LaggAt HACS Govee integration. Strips H618A now use core `govee_light_local` (LAN, 11 scenes). TV Lights H605B + DreamView group use package `packages/govee.yaml` (Platform API v2 rest_command, template light with 37 scenes/snapshots, `script.tv_ambient_on/off`). `script.tv_mode` evening → ambient.
+
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 ## 2026-10-10