chore: sync all changes to Gitea

- Config, docs, scripts, and backup manifests
- Submodule refs unchanged (m = modified content in submodules)

Made-with: Cursor

scripts/npmplus/keepalived/check-npmplus-health.sh

@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 # Check NPMplus health for Keepalived. Return 0 if healthy, 1 if unhealthy.
 # Deploy to /usr/local/bin/check-npmplus-health.sh on both Proxmox hosts.
 

scripts/npmplus/keepalived/keepalived-notify.sh

@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 # Handle Keepalived state changes
 # Deploy to /usr/local/bin/keepalived-notify.sh on Proxmox hosts (no project root needed)