feat(console): view-switch nav + non-collapsible admin sidebar

[maxnoller]

Summary

Extracts the view-switch topbar nav from #323 and simplifies the admin sidebar to always-expanded on desktop (mobile keeps the sheet). Replaces the earlier plan to auto-collapse on /admin/chat — the sidebar is no longer collapsible at all.

Behavior

• New ViewSwitchNav component for switching between Chat / Agents / Admin / Docs in the topbar
• Admin sidebar renders with collapsible=\"none\" on desktop (no toggle button); mobile still opens/closes via the sheet + trigger
• Router restructured so all admin pages live under /admin/* and chat lives at /chat (outside the admin layout)

Files

• components/app-shell.{tsx,test.tsx}
• components/sidebar/{index.tsx, app-sidebar.tsx, navigation.ts, sidebar.test.tsx, index.module.css}
• components/admin-nav.ts
• components/view-switch.tsx (new)
• routes/{dashboard.tsx, gateway.tsx}, router.tsx, styles.css

Test plan

• `vitest run` — 204/204 console tests pass
• `tsc --noEmit` clean
• Admin sidebar stays fully expanded on every `/admin/*` route on desktop
• Mobile viewport — hamburger opens the sheet, tapping a link closes it
• View-switch nav highlights the active section on both admin and chat routes

🤖 Generated with Claude Code

[maxnoller]

Code review

Found 2 issues:

1. Dead CSS class .page-content-full added with no caller. AGENTS.md §3.2 YAGNI says "Do not add config keys, interfaces, or feature flags without a concrete caller." Grepping console/ turns up zero references to this class in any TSX/TS file. This same pattern was flagged on PR feat(console): extract sidebar with collapsible desktop + mobile drawer #224.

hybridclaw/console/src/styles.css

Lines 230 to 236 in 2f6aa55

	}
	.page-content-full {
	height: calc(100% + 48px);
	margin: -24px;
	}

2. New collapsible prop supports an 'offcanvas' mode (plus accompanying .root[data-collapsible=\"offcanvas\"] CSS rule) that has no callers — AppSidebar never passes collapsible, so the effective value is always the default 'icon'. Commit 3de467b0 previously removed the unreachable offcanvas/icon branches for the same reason; reintroducing the 'offcanvas' variant without a caller reintroduces dead code (AGENTS.md §3.2 YAGNI).

hybridclaw/console/src/components/sidebar/index.tsx

Lines 36 to 40 in 2f6aa55

	type SidebarCollapsible = 'icon' | 'offcanvas' | 'none';
	type SidebarProps = {
	children: ReactNode;

hybridclaw/console/src/components/sidebar/index.module.css

Lines 358 to 364 in 2f6aa55

	.root[data-collapsible="offcanvas"] {
	width: 0;
	padding: 0;
	overflow: hidden;
	border: none;
	}

🤖 Generated with Claude Code

_{- If this code review was useful, please react with 👍. Otherwise, react with 👎.}

[furukama]

The admin sidebar changes size on every click to a subcategory. Plus: smaller layouts: no menu hamburger button anymore.