feat(mothership): knowledge base resource extraction + Resource/ResourceTable refactor

- Extract KB resources from knowledge subagent respond format (knowledge_bases array)
- Add knowledge_base tool to RESOURCE_TOOL_NAMES and TOOL_UI_METADATA
- Extract ResourceTable as independently composable memoized component
- Move contentOverride/overlay to Resource shell level (not table primitive)
- Remove redundant disableHeaderSort and loadingRows props
- Rename internal sort state for clarity (sort → internalSort, sortOverride → externalSort)
- Export ResourceTable and ResourceTableProps from barrel

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

Author: waleedlatif1

apps/sim/app/workspace/[workspaceId]/components/index.ts

@@ -21,6 +21,7 @@ export type {
   ResourceCell,
   ResourceColumn,
   ResourceRow,
+  ResourceTableProps,
   SelectableConfig,
 } from './resource/resource'
-export { Resource } from './resource/resource'
+export { Resource, ResourceTable } from './resource/resource'