Update documentation with Phase 2 advanced features and testing guide

Documentation updates:
- Added AI-Powered Intelligence section to Features
- Listed advanced features: AI translation, attack paths, security coach, PDF reports
- Added comprehensive API testing guide with curl examples
- Updated Features section to reflect Phase 2 completion
- Added instructions for testing AI features without API keys

Phase 2 Completion Summary:
✅ AI Finding Translation - converts technical findings to business language
✅ Attack Path Visualization - generates attack graphs with nodes/edges
✅ AI Security Coach - answers questions about findings
✅ PDF Report Generation - creates professional reports
✅ Mock AI System - demo mode for all features without API keys

All APIs tested and verified working. Frontend fully operational.

Co-Authored-By: Claude Haiku 4.5 <noreply@anthropic.com>

README.md

@@ -322,13 +322,27 @@ graph TD
 - **Baseline Snapshots** - Point-in-time assessments for comparison
 - **Board-Ready Formatting** - Professional layouts for stakeholders
 
-### Planned Features (Phase 2 & 3)
+### Advanced Features (Phase 2 - NEW)
+
+#### AI-Powered Intelligence
+- **✅ AI Finding Translation** - Automated conversion of technical vulnerabilities to business language (OpenAI/Anthropic)
+- **✅ Attack Path Visualization** - Graph-based attack vector diagrams with nodes and edges
+- **✅ AI Security Coach** - Interactive Q&A system for questions about specific findings
+- **✅ PDF Report Generation** - Professional PDF exports with findings, scores, and metrics
+- **✅ Mock AI System** - Demo mode functional without API keys, ready for production API integration
+
+#### Advanced Remediation
+- **Attack Path Analysis** - Understand how attackers would reach sensitive data
+- **Remediation Priority** - AI-suggested fix sequences based on exploit complexity
+- **Impact Quantification** - Estimated business cost of each security issue
+
+### Planned Features (Phase 3)
 
 - **Continuous Monitoring Engine** - Daily automated assessments
-- **Attack Path Visualization** - Interactive diagrams showing attack vectors
-- **AI Security Coach** - Interactive Q&A about specific findings
 - **Executive Protection Services** - Enhanced monitoring for leadership
 - **Advanced Integrations** - Cloud APIs, SIEM connectors, threat intelligence feeds
+- **Workflow Automation** - Auto-remediation for certain findings
+- **Executive Briefing Generator** - Automated executive summaries
 
 ---
 
@@ -584,6 +598,57 @@ The seed script creates a demo tenant "Acme Corp" with three users:
 | IT Admin | it@acmecorp.io | TrustOS2024! |
 | TrustOS Admin | admin@trustos.com | TrustOS-Admin-2024! |
 
+### Testing AI Features
+
+After logging in with any demo account, try these API endpoints to test the AI-powered features:
+
+**1. Get Dashboard**
+```bash
+curl -X GET http://localhost:8000/api/v1/dashboard/acme-corp-demo-001 \
+  -H "Authorization: Bearer YOUR_TOKEN"
+```
+Returns: Cyber health score, critical issues count, top risks
+
+**2. Trigger AI Finding Translation**
+```bash
+curl -X POST http://localhost:8000/api/v1/findings/{finding_id}/ai-translate \
+  -H "Authorization: Bearer YOUR_TOKEN"
+```
+Response: Translation queued (processes asynchronously)
+
+**3. Ask AI Security Coach**
+```bash
+curl -X POST http://localhost:8000/api/v1/findings/{finding_id}/ai-question \
+  -H "Authorization: Bearer YOUR_TOKEN" \
+  -H "Content-Type: application/json" \
+  -d '{"question":"What are the main risks of this vulnerability?"}'
+```
+Returns: AI-generated answer about the finding
+
+**4. Generate Attack Path**
+```bash
+curl -X POST http://localhost:8000/api/v1/attack-paths/{finding_id}/generate \
+  -H "Authorization: Bearer YOUR_TOKEN"
+```
+Response: Path generation queued (generates attack vectors)
+
+**5. Retrieve Attack Graph**
+```bash
+curl http://localhost:8000/api/v1/attack-paths/{finding_id} \
+  -H "Authorization: Bearer YOUR_TOKEN" | jq
+```
+Returns: Graph nodes and edges showing attack vectors
+
+**6. Download PDF Report**
+```bash
+curl -X POST http://localhost:8000/api/v1/audit-reports/acme-corp-demo-001/pdf-snapshot \
+  -H "Authorization: Bearer YOUR_TOKEN" \
+  -o report.pdf
+```
+Downloads: Professional PDF report with findings and scores
+
+**Note**: AI features work without OpenAI/Anthropic API keys using mock data. Set `OPENAI_API_KEY` or `ANTHROPIC_API_KEY` in `.env` for real AI translations.
+
 ### Stopping the Services
 
 ```bash