chore: import upstream snapshot with attribution

examples/showcases/oracle-agent-memory/agent/Dockerfile

@@ -0,0 +1,27 @@
+# Agent service image (Railway). Python 3.12 is required — oracleagentmemory
+# ships a cp312-only wheel.
+FROM python:3.12-slim
+
+# git: the ag_ui_agentspec adapter installs from the ag-ui git repo (see pyproject).
+RUN apt-get update \
+ && apt-get install -y --no-install-recommends git ca-certificates \
+ && rm -rf /var/lib/apt/lists/*
+
+# uv — the project's package manager.
+COPY --from=ghcr.io/astral-sh/uv:latest /uv /uvx /usr/local/bin/
+# Use the image's system Python 3.12 (don't fetch a managed interpreter).
+ENV UV_PYTHON_PREFERENCE=only-system UV_PYTHON_DOWNLOADS=never
+
+WORKDIR /app
+
+# Install dependencies from the lockfile first (cached layer). The project is not
+# a package (tool.uv.package = false), so only the deps are installed.
+COPY pyproject.toml uv.lock ./
+RUN uv sync --frozen --no-install-project
+
+# App code.
+COPY . .
+
+EXPOSE 8000
+# Bind Railway's $PORT (8000 locally). --no-sync: deps are already installed.
+CMD ["sh", "-c", "uv run --no-sync uvicorn concierge.server:app --host 0.0.0.0 --port ${PORT:-8000}"]