feat: AR-VINchecker v1.0 — VIN report generator with AI analysis

FastAPI server querying NHTSA/EPA APIs, generating PDF reports
with risk scoring, and local Ollama AI analysis via DealAnalyzer.
Security hardened: XSS fix, SSRF protection, CORS restricted.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

requirements.txt

@@ -0,0 +1,9 @@
+fastapi==0.104.1
+uvicorn[standard]==0.24.0
+httpx==0.25.2
+reportlab==4.0.7
+matplotlib==3.8.2
+Pillow==10.1.0
+jinja2==3.1.2
+python-multipart==0.0.6
+aiofiles==23.2.1