Scaffold: fork of Chambers architecture, renamed to Boardroom Map

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

orchestrator.Dockerfile

@@ -0,0 +1,26 @@
+# StartOS service image: the Boardroom Map orchestrator (control plane).
+# Build context is the PROJECT ROOT (manifest images.main.workdir = '.'), so
+# COPY paths are repo-relative. Arch-agnostic and GPU-free — it SSHes to the
+# Sparks and extracts document text on CPU. start-cli builds this for x86_64 +
+# aarch64.
+FROM python:3.11-slim
+
+RUN apt-get update && apt-get install -y --no-install-recommends \
+        openssh-client rsync tini ca-certificates && \
+    rm -rf /var/lib/apt/lists/*
+
+WORKDIR /app
+COPY orchestrator/requirements.txt .
+RUN pip install --no-cache-dir -r requirements.txt
+
+COPY orchestrator/ ./
+# Ship the reviewer build context so the orchestrator can build the reviewer
+# image on the head Spark over SSH (see reviewers.ensure_reviewer_image). Lives
+# at /app/sandbox.
+COPY sandbox/ ./sandbox/
+
+EXPOSE 8080
+ENV BM_DATA_DIR=/data
+# main.ts overrides this command, but keep a sane default for local runs.
+ENTRYPOINT ["tini", "--"]
+CMD ["uvicorn", "app:app", "--host", "0.0.0.0", "--port", "8080"]