Merge feat/modules-env-profiles into main

Remove .claudebox.json from tracking, add to .gitignore

module apply: fix PATH not updating — replace existing env entries instead of skipping, use double-quote wrapping so $PATH expands on source

module apply: restart dnsmasq instead of SIGHUP to reliably reload firewall rules

SqlServer module: remove stale keyring before re-importing GPG key

Fix pgrep not found and gpg /dev/tty error in non-interactive context

module apply: update live firewall with module domains/suffixes; SqlServer: add trafficmanager.net suffix

Run apt-get update unconditionally at container init and module apply

SqlServer module: install gnupg before GPG key import

Add extra_hosts config to inject intranet hostnames via --add-host

Fix install.sh to copy modules/ directory to CLAUDEBOX_HOME

Add modules system, extra_env forwarding, and env profiles

nuget cache seed now clears line hopefully

made nuget cache sync not silent

Merge branch 'main' into feat/dotnet-nuget-offline-seed