feat(studio): hide-AI setting, macOS window controls, onboarding tour, Drizzle operator intellisense

[remcostoeten]

Grouped feature PR (per request — fewer PRs), four independent features:

#163 — Hide AI entirely

New Settings → Safety → Hide AI toggle (default off, existing users unaffected). When on:

• corner AI button + assistant panel unmount, and the toggle-assistant shortcut no-ops
• SQL console: Cmd+K generation disabled, 'Explain with AI' button hidden, 'Fix with AI' on errors hidden
• all four AI settings sections (Provider, Local models, Keys, Usage) disappear from the settings panel and its nav

#165 — Window controls style (partial)

New Settings → Interface → Window Controls select: custom (current) or macos traffic lights (close/min/max dots with hover glyphs, Tauri only), persisted. Position (left/right) is deferred — WindowControls is mounted in ~7 header rightSlots and moving it left needs per-header layout work (the #164 concern the issue itself references). Leaving #165 open for that half, with a comment.

#160 — Skippable onboarding tour

Non-intrusive 5-step coachmark (bottom-center card + spotlight ring on the nav rail; no dimming overlay, app stays usable). Driven by a persisted launch counter (per the issue's note) in localStorage — which persists in the Tauri webview too: offers on the first 3 launches until completed or skipped, never again after. Nav anchors via a new data-nav-id on nav items.

#176 — Drizzle operator intellisense

Beyond the existing completions, the runner now has:

• Signature help inside operator calls (eq(, between(, …) with correct active-parameter tracking — a forward call-stack parser handles nested calls, arrays, objects, and unterminated strings (findEnclosingOperatorCall, 12 unit tests)
• Hover docs for eq/ne/gt/gte/lt/lte/like/ilike/inArray/notInArray/between/and/or/not/isNull/isNotNull
• Both providers disposed alongside the completion provider.

Verification

• 813 tests pass (18 new: 12 operator-signatures, 6 launch-state)
• studio + desktop typecheck, lint clean

Closes #163
Closes #160
Closes #176

Summary by Sourcery

Add user-configurable controls for AI visibility, window button style, onboarding guidance, and Drizzle operator tooling in Studio.

New Features:

• Introduce a Hide AI safety setting that removes all AI entry points and assistant UI when enabled.
• Add an Interface setting to switch desktop window controls between custom buttons and macOS-style traffic lights.
• Add a skippable, multi-step onboarding tour that spotlights key navigation items and is gated by a persisted launch counter.
• Provide signature help and hover documentation for common Drizzle condition operators in the runner code editor.

Enhancements:

• Dispose Drizzle runner hover and signature providers alongside the completion provider to avoid leaks.

Tests:

• Add unit tests for Drizzle operator signature metadata and the enclosing-operator parser used for signature help.
• Add unit tests for onboarding launch state behavior, including corrupted counters and completion gating.

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Project	Deployment	Actions	Updated (UTC)
dora	Ready	Preview, Comment	Jul 26, 2026 5:07pm

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⚙️ Run configuration

Configuration used: defaults

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Run ID: 95224eed-1ae3-42a9-a0a7-26395f2758ba

📥 Commits

Reviewing files that changed from the base of the PR and between ff36fe9 and 3828768.

📒 Files selected for processing (14)

• __tests__/apps/desktop/src/features/drizzle-runner/utils/operator-signatures.test.ts
• __tests__/apps/desktop/src/features/onboarding/launch-state.test.ts
• packages/studio/src/components/window-controls.tsx
• packages/studio/src/core/settings/settings-store.tsx
• packages/studio/src/features/app-sidebar/nav-item.tsx
• packages/studio/src/features/drizzle-runner/components/code-editor.tsx
• packages/studio/src/features/drizzle-runner/utils/operator-signatures.ts
• packages/studio/src/features/onboarding/index.ts
• packages/studio/src/features/onboarding/launch-state.ts
• packages/studio/src/features/onboarding/onboarding-tour.tsx
• packages/studio/src/features/sidebar/components/settings-panel.tsx
• packages/studio/src/features/sql-console/components/sql-results.tsx
• packages/studio/src/features/sql-console/sql-console.tsx
• packages/studio/src/pages/Index.tsx

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