Add "Tour the Menu Bar" page and correct the onboarding wizard steps

[ronaldmannak]

Summary

Keeps the Getting Started docs in sync with menu-bar and onboarding changes merged in ronaldmannak/PicoServer since the last documentation run. All facts are grounded in the current source (MenuExtraView.swift, OnboardingWizardView.swift), not point-in-time PR descriptions.

What changed

• New page — "Tour the Menu Bar" (docs/user-guide/getting-started/tour-the-menu-bar.md). Documents the shipping menu-extra panel, which is the primary control surface: Server status (dot + label + Start/Stop + address copy), the Memory bar (Apps / MLX / Free) with the GB / % legend toggle (PicoServer #37) and the Pressure indicator, Models in Memory (states Loading/Active/Idle, per-model evict, Clear All), the Downloads progress section, and the actions menu (Open Pico Web Chat, Documentation, Settings…, Setup Wizard…/Open Discord under Option, Quit). Includes a runnable verification and troubleshooting.
• Corrected the onboarding step on Install and Run to the actual four-step wizard — Welcome → Model → Access → Ready (PicoServer #42/#48) — and removed the stale claim that onboarding sets Open at login and Prevent sleep; the reduced flow no longer exposes those.
• Sidebar wiring — added the new page to the Getting Started category in sidebars.ts (slot 2, matching the docs map's "Tour the Dashboard" intent) and bumped sidebar_position on configure-settings (3) and connect-a-client (4).

Evidence

$ python3 .claude/skills/write-software-docs/scripts/check_markdown.py --strict \
    docs/user-guide/getting-started/tour-the-menu-bar.md \
    docs/user-guide/getting-started/install-and-run-pico-ai-server.md \
    docs/user-guide/getting-started/configure-settings.md \
    docs/user-guide/getting-started/connect-a-client.md
Checked 4 file(s): 0 error(s), 0 warning(s)

Verified against ronaldmannak/PicoServer master at the #49 merge (9088e48): MenuExtraView.swift's serverSection/memorySection/modelsSection/downloadsSection/actionsSection and the memoryLegendShowsPercent GB/% toggle; OnboardingWizardView.swift's welcome/models/access/ready pages.

Not done on purpose

• Menu-extra "Inference" section (PicoServer #34) — not documented. In release builds inferenceProvider is nil, so the Inference section never renders for end users (source comment: "Release builds keep this nil so the Inference section never shows fabricated numbers"). Documenting a DEBUG-only, placeholder-data section would be inaccurate; deferred until it ships in release.
• Specific model tiers / "Reasoning" rename (PicoCore #54) — not enumerated. The onboarding Model step is documented generically ("recommends a starting model based on your Mac's memory"); the RAM-tier catalog's model names/IDs are flagged as TODO placeholders in source (Reasoning-tier models render as "Coming soon"), so naming them now would go stale.
• PicoCore admin promote/demote (#67) and blank-token rejection (#68) — no user-facing Server UI surface identified for these engine-level APIs; documenting a UI that may not exist yet would be inventing behavior. Deferred.
• PicoServer #49 and PicoCore #65/#53/#51/#52 — internal/durability/CI/wire-format changes with no end-user, admin, or developer-facing surface. PicoDocs had no merged PRs in the window.

Relationship to the other open documentation PRs

This routine has opened one branch/PR per run, so several overlapping doc PRs are now open against master and awaiting human review:

• PR Update onboarding docs for new Welcome/Model/Access/Ready flow #6 already rewrites the same onboarding step to the four-step wizard and mentions the menu-extra Memory/Models sections inline. This PR's onboarding edit overlaps it; the distinct new value here is the dedicated, fuller menu-bar page. If Update onboarding docs for new Welcome/Model/Access/Ready flow #6 is merged first, this PR's install-and-run change will conflict on that paragraph — resolve by keeping either wording (they're equivalent) and this PR's new page + sidebar entries.
• PR Document onboarding notifications toggle and menu-extra memory section #5 is superseded by Update onboarding docs for new Welcome/Model/Access/Ready flow #6 (documents an onboarding "Allow notifications" toggle that no longer exists).
• PR Document connecting external MCP servers #4 (external MCP servers) is unrelated and independently valid.

Recommendation for the maintainer: merge one onboarding PR (this one or #6) and close the other, close #5, and keep #4 independent — the three onboarding/menu-bar PRs should not all land.

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Generated by Claude Code

[gemini-code-assist]

Caution

The consumer version of Gemini Code Assist on GitHub has been sunset. All code review activity has officially ceased.

[ronaldmannak]

Noting for the record: the expected automated internal-contradiction review does not appear to be running here — gemini-code-assist[bot] reports it has been sunset and its review activity has ceased. No findings to address from it. If Codex (the other configured reviewer) posts findings, they'll be handled; otherwise this PR is awaiting human review.

This PR is intentionally self-contained but overlaps the other open documentation PRs on the onboarding paragraph — see the "Relationship to the other open documentation PRs" section in the description for the recommended consolidation (merge one onboarding PR, close #5, keep #4 independent).

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Generated by Claude Code

[gemini-code-assist]

Caution

The consumer version of Gemini Code Assist on GitHub has been sunset. All code review activity has officially ceased.