Fix company switch menu cutoff in profile dropdown

Objective

• Make the profile / company switch menu in the left navigation fully usable for users with many company memberships.
• Ensure Attik Admin, Sign Out, and other items below the long Switch Company list are always reachable without browser zoom.
• Unblock admin workflows such as opening Post Inspection Revenue via Attik Admin for multi-instance LaunchPad users.

Background

• Product feedback from a LaunchPad CMO: on /settings, opening the profile menu shows Switch Company, but the panel is cut off at View Account and cannot be scrolled, so Attik Admin below it is unreachable.
• Reported path to Post Inspection Revenue: open profile menu → Attik Admin → Post Inspection Revenue.
• Temporary workaround: zoom out in the browser until the bottom of the menu fits on screen.
• Screenshot:

• Current behavior (confirmed in code):
• The menu lives in NavUser at the bottom of the left navbar (global tools shell — not a settings-page-only control).
• When a user has more than one membership (or is an Attik admin), NavUser renders a HeroUI Dropdown with placement='right' containing:
  1. Switch Company — one row per membership (sorted A–Z)
  2. Account — View Account, View Company
  3. Platform — Attik Admin (Attik admins only)
  4. Session — Sign Out
• The membership list is rendered in full with no max-height or internal scroll on DropdownMenu, so total menu height grows with instance count and can exceed the viewport.
• The trigger sits at the bottom of the sidebar, so the popover opens upward/right and the bottom sections are clipped first.
• Problem worsens as more instances are added; zoom workaround will not scale.

Product Decisions

Locked

1. Problem type — This is a UI bug. All menu destinations (including Attik Admin and Sign Out) must be reachable at normal browser zoom.
2. Primary surface — Left-nav profile dropdown in NavUser (tools shell). Same menu appears on settings and other tools routes.
3. User impact — Affects users with many memberships (reported ~20+ LaunchPad instances). Not a permissions issue — items exist but are clipped.
4. Done bar — User can open profile menu at 100% zoom on a typical laptop, scroll or otherwise reach Attik Admin, and complete the Post Inspection Revenue path without zooming out.

Open

1. Scroll model — Should the entire dropdown scroll as one panel, or only the Switch Company section scroll while Account / Platform / Session stay pinned at the bottom?
2. Attik Admin prominence — For Attik admins with long company lists, should Attik Admin move above the company list, stay at the bottom with scroll, or remain in Platform after Account?
3. Search / filter — Is scroll-only sufficient for v1, or should this fix include company search? (Related backlog: ATT-1047, ATT-1065.)
4. Viewport test matrix — What minimum viewport height and membership count should QA use as acceptance (e.g. 20 memberships at 768px height, 100% zoom)?
5. Mobile expanded navbar — Does the same cutoff occur when the mobile menu is expanded (mobileMenuOpen), or is this desktop-only? Confirm both need the fix if mobile reproduces.
6. Coordination with ATT-1065 — Show active instances first and primary instance would shorten the list long-term. Confirm ATT-1933 ships as an independent scroll/layout fix.

Scope

Frontend (attik-frontend)

• Profile / company switch menu — src/components/navbar/NavUser.tsx builds the Dropdown, DropdownMenu, and sections (Switch Company, Account, Platform, Session). Assignment uses switchCompanyAction; Attik Admin links to /api/auth/to-admin.
• Navbar shell — src/components/navbar/Navbar.tsx renders NavUser at the bottom of the left nav (overflow-hidden on the nav container; popover is portaled but menu height is unconstrained).
• Fix should apply wherever this dropdown is used (tools shell; admin shell reuses NavUser per ATT-1017 pattern).

Backend (attik-backend)

• Out of scope — membership list comes from session; no API change required for scroll behavior.

Out of scope

• Full instance-list redesign (active-first grouping, primary instance) unless pulled in from ATT-1065.
• Unified multi-instance workspace (ATT-1770).
• Post Inspection Revenue dashboard functionality itself — only restoring menu access to Attik Admin.

References

• Screenshot (repro): inline image above
• Slack / email thread: Shayna Bane — menu clipped at View Account; zoom workaround noted by Ryan Wagner
• Related list UX (backlog, not this bug): ATT-1065
• Prior dropdown scroll fix pattern: ATT-1126 (global search — Done)
• Key file: attik-frontend/src/components/navbar/NavUser.tsx