feat: Add Oghma RAG Proxy for SkyrimNet lore injection

RAG proxy that intercepts SkyrimNet LLM requests and enriches them
with relevant Tamrielic lore from CHIM's Oghma Infinium database.

Features:
- FastAPI proxy compatible with OpenAI API
- ChromaDB semantic search for lore retrieval
- NPC profile extraction from SkyrimNet prompts
- Google Sheets ingestion for CHIM's Oghma data
- Kubernetes deployment manifests
- Debug endpoint for RAG operation monitoring

Collections ingested to iris-dev ChromaDB:
- oghma_lore: 1951 entries (scholar knowledge)
- oghma_basic: 1949 entries (commoner knowledge)
- oghma_visual: 1151 entries (Omnisight perception)

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

oghma-proxy/Dockerfile

@@ -0,0 +1,35 @@
+# Oghma RAG Proxy - Container Image
+FROM python:3.11-slim
+
+LABEL maintainer="dafit@eachpath.local"
+LABEL description="RAG Proxy for SkyrimNet - Injects Tamrielic lore into NPC conversations"
+
+# Set working directory
+WORKDIR /app
+
+# Install system dependencies
+RUN apt-get update && apt-get install -y --no-install-recommends \
+    curl \
+    && rm -rf /var/lib/apt/lists/*
+
+# Copy project files
+COPY pyproject.toml .
+COPY src/ ./src/
+COPY config.yaml .
+
+# Install Python dependencies
+RUN pip install --no-cache-dir -e .
+
+# Create non-root user
+RUN useradd -m -u 1000 oghma
+USER oghma
+
+# Expose port
+EXPOSE 8100
+
+# Health check
+HEALTHCHECK --interval=30s --timeout=10s --start-period=5s --retries=3 \
+    CMD curl -f http://localhost:8100/health || exit 1
+
+# Run the proxy
+CMD ["python", "-m", "uvicorn", "oghma_proxy.main:app", "--host", "0.0.0.0", "--port", "8100"]