Add complete onboarding wizard: Permissions > Provider > Connect > Try it
Step 1 (Permissions): Privacy & Trust acknowledgements with toggles for
file system, shell execution, LLM requests, and local storage access.
Step 2 (Provider): LLM provider setup with 4 supported providers
(Kimi Code, Claude Code OAuth, Codex OAuth, OpenRouter), default
provider selection via radio indicator, and contextual setup tutorials
in the right panel that change on hover.
Step 3 (Connect): Optional Telegram bot connection with token input and
BotFather tutorial. Reuses existing useChannels() hook.
Step 4 (Try it): Sample prompts and completion.
Includes OnboardingGuard, Zustand store (no persist - resets on launch),
breadcrumb stepper with progress bar, and left-right split layout.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
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