Iteration Log - 2026-07-24-1145-adhoc-branding-revert-and-mismatch

Request

Revert all branding changes made to the Login Page (src/app/login/page.tsx), restoring it to the standard BackOne logo and name.
Resolve the issue where the Sidebar logo in the dashboard still renders the BackOne swirl logo instead of the Nexus logo when logged in as a Nexus Admin.
Clean up the word "BackOne" appearing on the App Lookup page description tab/contents when in the Nexus site context.

Reverted Login Page:
- Restored src/app/login/page.tsx exactly to its original layout, presenting /backone-logo.png and "BackOne Dashboard".
Fixed Hydration Mismatch in Sidebar Logo:
- Added a mounted React state in src/components/layout/Sidebar.tsx to conditionally toggle the src attribute of the sidebar logo after mounting.
- Why: React's hydration checks were throwing a mismatch warning because the server was rendering the default SIAB/BackOne swirl logo, and the client was immediately trying to swap it to /nexus-logo.png. Under hydration rules, React left the server-rendered DOM node unchanged, causing the swirl logo to remain visible. Conditioning on mounted forces a clean client-side re-render once the component is mounted, correctly swapping in /nexus-logo.png.
Rebranded App Lookup Description:
- Updated src/app/(dashboard)/lookup/page.tsx to read the active branding.name and output "Search Nexus's extensive..." instead of "Search BackOne's...".
Dynamic Backend Rebranding Middleware:
- Replaced static rebranding inside backend/routes/dashboard.js with a dynamic tenant-isolated rebrander. It checks the active user's site context to map Netify/BackOne -> Nexus on the fly.
Tested and Deployed:
- Verified local Next.js production compilation.
- Deployed changes to remote PM2 processes using SFTP deployment script.
- Verified that the remote dashboard fetches successfully.