feat: project cover art with AI generation, branding rename, RBAC fix, computation graph

- Add DALL-E cover art generation for projects (Azure OpenAI + standard OpenAI)
- CoverArtSection component with generate/upload/remove/focus-point controls
- Client-side image compression (10MB input → WebP/JPEG, max 1920px)
- DALL-E settings in admin panel (deployment, endpoint, API key)
- MCP assistant tools for cover art (generate_project_cover, remove_project_cover)
- Rename "Planarchy" → "plANARCHY" across all UI-facing text (13 files)
- Fix hardcoded canEdit={true} on project detail page — now checks user role
- Computation graph visualization (2D/3D) for calculation rules
- OG image and OpenGraph metadata

Co-Authored-By: claude-flow <ruv@ruv.net>

apps/web/src/components/projects/ProjectAssignmentsTable.tsx

@@ -73,7 +73,9 @@ export function ProjectAssignmentsTable({ assignments }: ProjectAssignmentsTable
       <table className="w-full">
         <thead className="bg-gray-50 dark:bg-gray-800/50 border-b border-gray-200 dark:border-gray-700">
           <tr>
-            <th className="px-4 py-3 text-left text-xs font-medium text-gray-500 dark:text-gray-400 uppercase tracking-wider">Resource</th>
+            <th className="px-4 py-3 text-left text-xs font-medium text-gray-500 dark:text-gray-400 uppercase tracking-wider">
+              Resource <InfoTooltip content="The person assigned to this project for the given period and role." />
+            </th>
             <th className="px-4 py-3 text-left text-xs font-medium text-gray-500 dark:text-gray-400 uppercase tracking-wider">
               Role <InfoTooltip content="Role this allocation was created for." />
             </th>