feat: add combined Hermes Workspace image with Swarm worker support

New directory ai/hermes-workspace/ with:
- Dockerfile (multi-stage): builds workspace web UI from source,
  overlays our Hermes fork, installs tmux for Swarm workers
- entrypoint-combined.sh: starts workspace UI, waits for gateway
- himalaya-ro.sh: read-only Himalaya wrapper (shared from hermes/)

Existing ai/hermes/ Dockerfile preserved unchanged as fallback.

compose.yml changes:
- Add HERMES_DASHBOARD=1 + healthcheck to hermes service
- Add hermes-workspace service using combined image
  (build context: ./hermes-workspace, SSH build)
  - Connects to hermes:8642 (gateway) + :9119 (dashboard)
  - Shares Hermes data volume for config/sessions/skills
  - Traefik on workspace.lazyworkhorse.net (port 3000)
  - Networks: ai_backend + ai_net

ai/hermes-workspace/Dockerfile

@@ -0,0 +1,125 @@
+# syntax=docker/dockerfile:1
+# Hermes Agent + Hermes Workspace — combined image
+# Builds on top of official image + our forked source + workspace UI.
+# Supports Swarm Mode (tmux workers) in a single container.
+# Requires Docker BuildKit. Pass SSH agent for git clone:
+#   docker compose build hermes-workspace
+
+# ---------- Stage 1: Build Hermes Workspace (web UI) ----------
+FROM node:22-slim AS workspace-build
+
+WORKDIR /app
+
+# Install pnpm and git
+RUN apt-get update && apt-get install -y --no-install-recommends \
+    ca-certificates git curl \
+    && rm -rf /var/lib/apt/lists/* \
+    && corepack enable
+
+# Clone workspace source (pinned to a known-good commit on main)
+RUN git clone --depth 1 --branch main \
+    https://github.com/outsourc-e/hermes-workspace.git /app/workspace-src \
+    && rm -rf /app/workspace-src/.git
+
+WORKDIR /app/workspace-src
+
+# Install deps and build
+RUN pnpm install --frozen-lockfile && pnpm build
+
+# ---------- Stage 2: Hermes Agent + Workspace runtime ----------
+FROM nousresearch/hermes-agent:latest
+
+# ---------- Install Node.js + tmux for Workspace + Swarm ----------
+USER root
+RUN apt-get update && apt-get install -y --no-install-recommends \
+    nodejs tmux ca-certificates curl \
+    && rm -rf /var/lib/apt/lists/*
+
+# ---------- Overlay our forked Hermes source ----------
+RUN --mount=type=ssh \
+    mkdir -p /root/.ssh && \
+    ssh-keyscan -p 2222 code.lazyworkhorse.net >> /root/.ssh/known_hosts 2>/dev/null && \
+    cd /tmp && \
+    GIT_SSH_COMMAND='ssh -p 2222 -o StrictHostKeyChecking=no' \
+    git clone --depth 1 --branch main \
+    git@code.lazyworkhorse.net:gortium/hermes-agent.git fork && \
+    rsync -a --delete fork/ /opt/hermes/ \
+      --exclude node_modules \
+      --exclude .venv \
+      --exclude .git && \
+    rm -rf /tmp/fork /root/.ssh/
+
+# ---------- Rebuild web UI ----------
+RUN cd /opt/hermes && npm run build
+
+# ---------- Reinstall Python package ----------
+RUN . /opt/hermes/.venv/bin/activate && \
+    uv pip install --no-cache-dir --no-deps -e /opt/hermes
+
+# ---------- Extra system deps ----------
+RUN apt-get update && apt-get install -y --no-install-recommends \
+    libportaudio2 ca-certificates poppler-utils imagemagick \
+    texlive-latex-base texlive-latex-extra texlive-fonts-recommended \
+    texlive-xetex texlive-science \
+    qemu-user-static binfmt-support emacs-nox \
+    && rm -rf /var/lib/apt/lists/*
+
+# ---------- UV ----------
+COPY --chmod=0755 --from=ghcr.io/astral-sh/uv:latest /uv /usr/local/bin/
+
+# ---------- Piper TTS ----------
+RUN . /opt/hermes/.venv/bin/activate && \
+    uv pip install --no-cache-dir piper-tts sounddevice numpy && \
+    mkdir -p /opt/hermes/.venv/share/piper/voices
+
+RUN /opt/hermes/.venv/bin/python3 /dev/stdin << 'PYEOF'
+import urllib.request
+base = '/opt/hermes/.venv/share/piper/voices'
+url = 'https://huggingface.co/rhasspy/piper-voices/resolve/main/en/en_US/ryan/high/en_US-ryan-high.onnx'
+urllib.request.urlretrieve(url, base + '/en_US-ryan-high.onnx')
+urllib.request.urlretrieve(url + '.json', base + '/en_US-ryan-high.onnx.json')
+PYEOF
+
+# ---------- Install Himalaya email CLI ----------
+RUN /opt/hermes/.venv/bin/python3 /dev/stdin << 'PYEOF'
+import urllib.request, tarfile, os, shutil
+url = 'https://github.com/pimalaya/himalaya/releases/download/v1.2.0/himalaya.x86_64-linux.tgz'
+tgz = '/tmp/himalaya.tgz'
+urllib.request.urlretrieve(url, tgz)
+with tarfile.open(tgz) as t:
+    t.extractall('/tmp')
+shutil.move('/tmp/himalaya', '/usr/local/bin/himalaya')
+os.chmod('/usr/local/bin/himalaya', 0o755)
+os.remove(tgz)
+print('himalaya v1.2.0 installed')
+PYEOF
+
+# ---------- Install himalaya-ro wrapper ----------
+COPY --chmod=0755 himalaya-ro.sh /usr/local/bin/himalaya-ro
+
+# ---------- Copy Hermes Workspace build artifacts ----------
+COPY --from=workspace-build --chown=hermes:hermes \
+    /app/workspace-src/dist /workspace/dist
+COPY --from=workspace-build --chown=hermes:hermes \
+    /app/workspace-src/node_modules /workspace/node_modules
+COPY --from=workspace-build --chown=hermes:hermes \
+    /app/workspace-src/package.json /workspace/
+COPY --from=workspace-build --chown=hermes:hermes \
+    /app/workspace-src/server-entry.js /workspace/
+COPY --from=workspace-build --chown=hermes:hermes \
+    /app/workspace-src/skills /workspace/skills
+COPY --chmod=0755 entrypoint-combined.sh /usr/local/bin/entrypoint-combined.sh
+
+# ---------- Runtime ----------
+USER hermes
+ENV HERMES_HOME=/opt/data
+ENV PATH="/opt/data/.local/bin:${PATH}"
+ENV CHROME_EXECUTABLE=/opt/hermes/.playwright/chromium/chrome-linux/chrome
+
+RUN chown -R hermes:hermes /opt/hermes/tools /opt/hermes/toolsets.py
+
+VOLUME [ "/opt/data" ]
+
+EXPOSE 8642 9119 3000
+
+ENTRYPOINT ["/usr/bin/tini", "-g", "--", "/usr/local/bin/entrypoint-combined.sh"]