הורדת codeg 0.20.2

- feat(settings): Experts, Science, and Office Tools are now one "Skill Packs" hub. The three separate settings pages are merged into a single Skill Packs entry with a tabbed switcher for Experts, Scientific Research, and Office — plus a fixed toolbar to open the shared central skills folder or refresh the active tab. Old links to the individual pages redirect here automatically.
- feat(chat): Kick off Scientific Research skills straight from the composer. The composer's "+" menu gains a "Scientific Research" submenu next to Experts and Office Work, listing every bundled science skill; pick one to drop its invocation badge into your message. Skills you haven't enabled for the current agent show a lock and a shortcut to turn them on in Settings.
- feat(layout): Roomier sidebars. The left and right sidebars can now be dragged out to 900px, giving conversation lists and side panels more breathing room on wide displays.
- fix(chat): Quick-skills now use the right prefix for whichever agent you send to. A skill badge inserted before switching agents kept its original trigger, so a skill queued for Codex went out as /skill and Codex rejected it as a slash command. Badges are now re-stamped when you change agents and normalized at send time — $ for Codex, / everywhere else — so the invocation always lands.
- fix(acp): A conversation that can't be resumed now offers a clear way forward. When a historical session can't be restored — the agent process crashed mid-load, or the session has expired or ended — codeg shows a Reload / New conversation banner instead of silently orphaning the context or surfacing a raw protocol error.
- fix(editor): No more phantom errors or orange boxes in the file editor. The built-in editor no longer flags false-positive TypeScript/JSON problems that only exist because it can't see your project's build context ("Cannot find module '@/…'", a missing --jsx flag, unreachable schemas), and Chinese/Japanese full-width punctuation (：；，！？（）) renders as normal text instead of highlighted boxes. Real syntax errors and zero-width/BOM detection are still flagged.
- fix(editor): Markdown list markers show up in file preview. Ordered lists now display their numbers and unordered lists get proper indentation in the editor's Markdown preview.
- fix(chat): The model picker no longer closes when you grab its scrollbar. On the desktop app's WebKit webview, dragging the model list's scrollbar used to dismiss the picker; it now stays open in both the wide picker and the collapsed cog panel.