chore: update infrastructure configs, audit docs, and env template

- Update Docker Compose configs for Redis, Typesense, and MinIO services
- Update GitHub Actions deploy workflow with improved caching and steps
- Extend .env.example with Stringee, Zalo OA, and FCM config keys
- Update audit documentation with latest findings and recommendations
- Update CHANGELOG and README with recent feature additions

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

docs/audits/COMPREHENSIVE_AUDIT_2026-04-12.md

@@ -31,7 +31,7 @@ The **GoodGo Platform AI** is a well-architected Vietnamese real estate platform
 goodgo-platform-ai/
 ├── apps/
 │   ├── api/              # NestJS backend (3,001 files)
-│   └── web/              # Next.js 14 frontend (864 files)
+│   └── web/              # Next.js 15 frontend (864 files)
 ├── libs/
 │   ├── ai-services/      # Python FastAPI services
 │   └── mcp-servers/      # Model Context Protocol servers
@@ -199,7 +199,7 @@ pnpm test:e2e:web      # Web-only E2E tests
 
 ---
 
-## 3. FRONTEND STRUCTURE (Next.js 14)
+## 3. FRONTEND STRUCTURE (Next.js 15)
 
 ### 3.1 Route Architecture (App Router)
 
@@ -1330,7 +1330,7 @@ Redis (Cache):        ✅ Optional password
 ⚠️ Monitor large JSON fields (amenities, nearbyPOIs) for query slowness
 
 **Frontend Optimization:**
-✅ Next.js 14 with App Router
+✅ Next.js 15 with App Router
 ✅ Tailwind CSS for minimal CSS
 ⚠️ Map component (Mapbox GL) could be lazy-loaded
 
@@ -1413,7 +1413,7 @@ Redis (Cache):        ✅ Optional password
   ✅ HTTPS ready (Nginx reverse proxy)
 
 ✅ Frontend
-  ✅ Modern framework (Next.js 14)
+  ✅ Modern framework (Next.js 15)
   ✅ Responsive design (Tailwind CSS)
   ✅ Component library (Shadcn/Radix)
   ✅ State management (Zustand + React Query)
@@ -1650,7 +1650,7 @@ Architecture:    Domain-Driven Design
 
 ### Frontend Stack
 ```
-Framework:       Next.js 14 (App Router)
+Framework:       Next.js 15 (App Router)
 Language:        TypeScript 5.4
 UI Components:   Shadcn/Radix UI
 Styling:         Tailwind CSS 3