Initial commit — StreamStack v1

Five-service streaming platform: auth, catalogue, streaming, ingest, thumbnailer.
Includes React frontend served by nginx, NATS JetStream event bus, aiobotocore
async S3, PyAV video metadata + thumbnail extraction, service-to-service JWT auth,
and a full unit + e2e test suite.

Dockerfile.test

@@ -0,0 +1,14 @@
+FROM git.unkin.net/unkin/almalinux9-base:20260308
+
+RUN dnf install -y \
+        gcc gcc-c++ make ffmpeg-devel libpq-devel && dnf clean all
+
+WORKDIR /app
+COPY pyproject.toml uv.lock* ./
+COPY src/ src/
+COPY tests/ tests/
+COPY testdata/ testdata/
+
+RUN uv sync --frozen --extra dev --python 3.12
+
+ENV PYTHONPATH="/app/src" PATH="/app/.venv/bin:$PATH"