feat: initial commit for oil price scraper service

FastAPI-based scraper for commodity ticker prices (HO, CL, RB futures)
and competitor oil pricing from NewEnglandOil. Includes cron-driven
scraping, PostgreSQL storage, and REST endpoints for price retrieval.

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

requirements.txt

@@ -0,0 +1,18 @@
+# eamco_scraper dependencies
+# FastAPI web framework and server
+fastapi>=0.109.0,<1.0.0
+uvicorn[standard]>=0.27.0,<1.0.0
+pydantic>=2.5.0,<3.0.0
+
+# Database
+sqlalchemy>=2.0.0,<3.0.0
+psycopg2-binary>=2.9.9,<3.0.0
+
+# Web scraping
+beautifulsoup4>=4.12.0,<5.0.0
+requests>=2.31.0,<3.0.0
+lxml>=5.0.0,<6.0.0
+
+# Configuration
+python-dotenv>=1.0.0,<2.0.0
+yfinance>=0.2.36