Update README for clarity and detail

Merge pull request #16 from hermitshell-router/dependabot/github_actions/docker/build-push-action-7

Merge pull request #15 from hermitshell-router/dependabot/github_actions/docker/setup-buildx-action-4

Merge pull request #14 from hermitshell-router/dependabot/github_actions/docker/login-action-4

split settings into sub-pages, add UI improvements

update SECURITY.md for resolved and new items

harden secret handling and temp file security

fix duplicate env key in release workflow

fix stale forward rules on wg peer group change

make release signature verification mandatory

block interface swap that would lock out admin

reconcile wg0 peers live during apply_config

add ed25519 signature verification to updates

add CLAUDE.md with clippy lint instructions

fix clippy collapsible-if and too-many-arguments