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>

Dockerfile.local

@@ -0,0 +1,37 @@
+# eamco_scraper - LOCAL Dockerfile
+# Used by docker-compose.local.yml
+# Features: Volume mounts for development, hot reload
+
+FROM python:3.11-slim
+
+# Set environment variables
+ENV PYTHONDONTWRITEBYTECODE=1 \
+    PYTHONUNBUFFERED=1 \
+    PYTHONPATH=/app
+
+# Set working directory
+WORKDIR /app
+
+# Install system dependencies
+RUN apt-get update && apt-get install -y --no-install-recommends \
+    libpq-dev \
+    gcc \
+    && rm -rf /var/lib/apt/lists/*
+
+# Copy requirements
+COPY requirements.txt .
+
+# Install Python dependencies
+RUN pip install --no-cache-dir -r requirements.txt
+
+# Copy environment file for local
+COPY .env.local .env
+
+# Copy application code (will be overridden by volume mount)
+COPY app/ ./app/
+
+# Expose port
+EXPOSE 8000
+
+# Development: Run with reload
+CMD ["uvicorn", "app.main:app", "--reload", "--host", "0.0.0.0", "--port", "8000"]