fix: update checker shows correct status + version display + dark mode fixes

docs: auto-sync changelog to README [skip ci]

docs: auto-sync changelog to README [skip ci]

docs: add desktop app download section, update model table

docs: auto-sync changelog to README [skip ci]

docs: auto-sync changelog to README [skip ci]

ci: improve changelog sync to show only Added highlights

ci: auto-sync CHANGELOG to README via GitHub Actions

docs: add recent changes section to README

docs: add Docker cross-container networking tip, fix outdated section name

feat: Claude Code quick setup — dashboard card, model aliases & README

docs: merge stable connection into auth section, remove auto-maintenance

docs: reorganize README quick start by platform

fix: README add web/ dependency install step

feat: add pnpm/bun package manager support for local development

docs: simplify README feature descriptions for end users

docs: clarify proxy_api_key config, set default to "pwd"

refactor: fingerprint alignment, auto-maintenance, Docker deployment

docs: add bilingual README (Chinese + English) with non-commercial license

feat: desktop context injection, multi-turn sessions, TLS impersonation & auto-update