docs: fix Next.js 14→15 version refs, add libs to CLAUDE.md

- Update stale Next.js 14 references to 15 in audit docs
- Add libs/ai-services and libs/mcp-servers to CLAUDE.md project structure

Resolves TEC-2259

Co-Authored-By: Paperclip <noreply@paperclip.ing>

CLAUDE.md

@@ -15,8 +15,9 @@ pnpm dev                # Start all apps (API :3001, Web :3000)
 ## Architecture
 
 - **apps/api** — NestJS backend (CQRS, DDD, clean architecture)
-- **apps/web** — Next.js 14 frontend (App Router, Tailwind, Zustand)
-- **libs/mcp-servers** — MCP tool server library
+- **apps/web** — Next.js 15 frontend (App Router, Tailwind, Zustand)
+- **libs/ai-services** — Python FastAPI AI/ML services (AVM, content moderation, NLP)
+- **libs/mcp-servers** — MCP tool server library (property search, analytics, valuation)
 - **prisma/** — Schema, migrations, seed scripts
 - **e2e/** — Playwright E2E tests (API + Web projects)
 
@@ -35,7 +36,7 @@ pnpm dev                # Start all apps (API :3001, Web :3000)
 
 - **Runtime**: Node.js >= 22, pnpm 10
 - **Backend**: NestJS, Prisma ORM, PostgreSQL 16 + PostGIS, Redis
-- **Frontend**: Next.js 14, React 18, Tailwind CSS 3, Zustand, Mapbox GL
+- **Frontend**: Next.js 15, React 18, Tailwind CSS 3, Zustand, Mapbox GL
 - **Testing**: Vitest (unit), Playwright (E2E)
 - **CI**: GitHub Actions (lint → typecheck → test → build)
 
@@ -63,6 +64,14 @@ apps/api/src/modules/
 
 Each module follows DDD layers: `domain/` → `application/` → `infrastructure/` → `presentation/`.
 
+## Project Structure (Libs)
+
+```
+libs/
+  ai-services/     — Python FastAPI AI/ML services (AVM, content moderation, NLP)
+  mcp-servers/     — MCP tool server library (property search, analytics, valuation)
+```
+
 ## Database
 
 - PostgreSQL 16 with PostGIS extension for geospatial queries