feat(caddy): remove identifying server headers

fix(xray): update config path

chore(docker): bump sing-box and xray versions

feat(xray): add quic to sniffing destOverride

chore(docker): bump sing-box and xray versions

fix: enable sniffing for sing-box inbound

refactor(docker-compose): remove internal network configuration

fix(caddy): remove redundant bind directives

docs(README): update repository description

style: standardize dns server configuration format

refactor: replace network_mode: host with ports and internal network

docs(README): specify customization location for camouflage page

docs(README): add customization information for camouflage page

fix: remove fake backend

docs(README): add installation and configuration instructions