fix: resolve brand brief routing conflict (/briefs/new → /brand/briefs/new)

[parva3105]

Summary

• app/(agency)/briefs/[id] and app/(brand)/briefs/new both resolved to the URL /briefs/new
• Next.js served the agency dynamic route with id="new", which immediately called notFound() since no brief has that ID
• The brand manager Submit Brief form was never rendered — users saw a 404

Root cause

Next.js App Router route groups are purely organizational. Two pages in different route groups can collide at the same URL. Since the agency has briefs/[id] (dynamic) and the brand had briefs/new (static), they overlap at /briefs/new. In practice Next.js resolved to the agency route first.

Fix

• Moved app/(brand)/briefs/new/page.tsx → app/(brand)/brand/briefs/new/page.tsx (URL: /brand/briefs/new)
• Updated Sidebar.tsx: brand_manager Submit Brief href → /brand/briefs/new
• Updated RoleSwitcher.tsx: brand_manager home route → /brand/briefs/new

Test plan

• Switch role switcher to "Brand Portal" — confirms redirect to /brand/briefs/new (not 404)
• Sidebar "Submit Brief" link navigates to /brand/briefs/new and renders the form
• Agency /briefs/brief_001 still works and shows the agency brief detail (not the brand form)
• Submit the form → success screen appears with "Brief Submitted!"
• "Submit another" button resets and shows the form again

🤖 Generated with Claude Code

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Project	Deployment	Actions	Updated (UTC)
project-alpha	Error		Mar 21, 2026 0:40am