feat(usgs-nims): Phase C NIMS imagery publisher — bootstrap, publisher, Docker

- bootstrap_usgs_nims.py: Pattern A companion datastreams on existing water systems
  - 1 procedure, 8 imagery datastreams, 10 deployments (root + group + 8 leaves)
- usgs_nims_publisher.py: polls NIMS /listFiles API, filename-based dedup
  - constructs overlay/thumb/720px S3 URLs, extracts timestamps from filenames
- cameras.json enriched with live NIMS API data (12+ fields per camera)
- Dockerfile with 900s default interval
- Bootstrap verified: 19/19 resources created on server
- Publisher verified: 8/8 cameras publishing successfully

Author: Sam-Bolling

publishers/usgs_nims/Dockerfile

@@ -0,0 +1,20 @@
+FROM python:3.12-slim
+
+WORKDIR /app
+
+# Install dependencies (no additional pip packages needed beyond stdlib)
+RUN pip install --no-cache-dir git+https://github.com/OS4CSAPI/OSHConnect-Python.git
+
+# Copy publisher framework + USGS NIMS publisher
+COPY publishers/ /app/publishers/
+
+# Default: 15min cadence (matches typical NIMS refresh intervals)
+ENV OSH_ADDRESS=os4csapi-osh.duckdns.org
+ENV OSH_PORT=443
+ENV OSH_USER=os4csapi
+ENV OSH_PASS=ogc134mm
+# Optional: USGS API key for higher rate limits
+# ENV USGS_API_KEY=
+
+ENTRYPOINT ["python", "-m", "publishers.usgs_nims.usgs_nims_publisher"]
+CMD ["--interval", "900"]