[Feature]: Estate: Frontend -- Remote Badge + Read-Only Detail Views

Parent PRD

#143

What to build

Add frontend components that visually distinguish remote entities from local ones and enforce read-only behavior on remote entities.

• New RemoteBadge component showing "Remote" with source instance name
• Update search result rendering to show RemoteBadge when is_remote is true
• Add a prominent remote banner on detail pages: "This entity is managed by [Instance Name]" with link to source workspace URL
• Disable all edit/delete actions on remote entity detail pages
• Apply to all federated entity types: Data Products, Data Contracts, Business Terms, Data Domains

See "UI Behavior" section of the parent PRD.

Acceptance criteria

• RemoteBadge component renders with source instance name
• Search results show RemoteBadge for remote entities inline with local results
• Detail pages display remote banner with source instance name and link
• All edit, delete, and mutation buttons are disabled/hidden on remote entities
• Data Product, Data Contract, Business Term, and Data Domain detail views all support remote mode

Blocked by

• Blocked by #151 (Search Integration for Remote Entities)

User stories addressed

• User story 10, 11, 12, 14, 18

Start by reviewing the parent PRD in #143 and the blocking search integration issue #151. Trace the existing search results and detail views for Data Products, Data Contracts, Business Terms, and Data Domains. Done means remote entities show their source instance, link to its workspace, and expose no edit, delete, or mutation actions.