fix: code review cleanup

- Added missing API functions: fetchKnowledgeStats, fetchEntryGraph
- Exported StatsDashboard and EntryGraphViewer components
- Replaced 'any' types with proper TypeScript types:
  * AuthUser for @CurrentUser parameters
  * Prisma.KnowledgeEntryWhereInput for where clauses
  * Prisma.KnowledgeEntryUpdateInput for update data
  * Prisma.TransactionClient for transaction parameters
- All TypeScript checks passing
- XSS protection verified in WikiLinkRenderer (escapeHtml function)
- Wiki-link parsing properly handles code blocks and escaping

apps/web/src/components/knowledge/index.ts

@@ -7,3 +7,5 @@ export { EntryViewer } from "./EntryViewer";
 export { EntryEditor } from "./EntryEditor";
 export { EntryMetadata } from "./EntryMetadata";
 export { VersionHistory } from "./VersionHistory";
+export { StatsDashboard } from "./StatsDashboard";
+export { EntryGraphViewer } from "./EntryGraphViewer";