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/api/src/knowledge/knowledge.controller.ts

@@ -11,6 +11,7 @@ import {
   ParseIntPipe,
   DefaultValuePipe,
 } from "@nestjs/common";
+import type { AuthUser } from "@mosaic/shared";
 import { KnowledgeService } from "./knowledge.service";
 import { CreateEntryDto, UpdateEntryDto, EntryQueryDto, RestoreVersionDto } from "./dto";
 import { AuthGuard } from "../auth/guards/auth.guard";
@@ -69,7 +70,7 @@ export class KnowledgeController {
   @RequirePermission(Permission.WORKSPACE_MEMBER)
   async create(
     @Workspace() workspaceId: string,
-    @CurrentUser() user: any,
+    @CurrentUser() user: AuthUser,
     @Body() createDto: CreateEntryDto
   ) {
     return this.knowledgeService.create(workspaceId, user.id, createDto);
@@ -85,7 +86,7 @@ export class KnowledgeController {
   async update(
     @Workspace() workspaceId: string,
     @Param("slug") slug: string,
-    @CurrentUser() user: any,
+    @CurrentUser() user: AuthUser,
     @Body() updateDto: UpdateEntryDto
   ) {
     return this.knowledgeService.update(workspaceId, slug, user.id, updateDto);
@@ -101,7 +102,7 @@ export class KnowledgeController {
   async remove(
     @Workspace() workspaceId: string,
     @Param("slug") slug: string,
-    @CurrentUser() user: any
+    @CurrentUser() user: AuthUser
   ) {
     await this.knowledgeService.remove(workspaceId, slug, user.id);
     return { message: "Entry archived successfully" };
@@ -177,7 +178,7 @@ export class KnowledgeController {
     @Workspace() workspaceId: string,
     @Param("slug") slug: string,
     @Param("version", ParseIntPipe) version: number,
-    @CurrentUser() user: any,
+    @CurrentUser() user: AuthUser,
     @Body() restoreDto: RestoreVersionDto
   ) {
     return this.knowledgeService.restoreVersion(