refactor: fusionne Honcho + OpenConcho dans un seul container nginx/FastAPI

- Honcho (FastAPI) et OpenConcho (React SPA) dans un seul Dockerfile multi-stage
- nginx proxy /v3/ /v2/ /health /openapi.json vers Honcho sur localhost:8000
- Supprime le service openconcho séparé et le dossier orphelin
- Routeur Traefik unique à honcho.lazyworkhorse.net (port 80 — nginx)
- Plus besoin d'exposer Honcho séparément (API accessible via nginx proxy)

ai/honcho/Dockerfile

@@ -1,6 +1,5 @@
 # build stage — fetches and builds Honcho from source
-# Using buildkit cache mounts for speed across rebuilds
-FROM python:3.13-slim-bookworm AS builder
+FROM python:3.13-slim-bookworm AS honcho-builder
 
 RUN apt-get update && \
     apt-get install -y --no-install-recommends git && \
@@ -8,7 +7,6 @@ RUN apt-get update && \
 
 COPY --from=ghcr.io/astral-sh/uv:0.9.24 /uv /bin/uv
 
-# Clone Honcho at a pinned commit for reproducibility
 ARG HONCHO_REPO=https://github.com/plastic-labs/honcho
 ARG HONCHO_REF=main
 RUN git clone --depth 1 --branch ${HONCHO_REF} ${HONCHO_REPO} /app
@@ -21,21 +19,51 @@ ENV UV_PYTHON=/usr/local/bin/python3.13
 
 RUN uv sync --frozen
 
-# --- runtime stage ---
+# build stage — builds OpenConcho SPA
+FROM node:22-bookworm AS openconcho-builder
+
+ENV PNPM_HOME=/pnpm
+ENV PATH=$PNPM_HOME:$PATH
+RUN corepack enable && corepack prepare pnpm@latest --activate
+
+WORKDIR /app
+RUN apt-get update && apt-get install -y git && rm -rf /var/lib/apt/lists/*
+
+ARG OPENCONCHO_SHA=e490d911fcb27ee193558fd9a28856cde2057665
+RUN git clone --depth 1 https://github.com/offendingcommit/openconcho.git /app && \
+    git -C /app fetch --depth 1 origin ${OPENCONCHO_SHA} && \
+    git -C /app checkout ${OPENCONCHO_SHA}
+
+RUN pnpm install --frozen-lockfile
+RUN pnpm --filter @openconcho/web build
+
+# runtime stage — nginx + Honcho FastAPI
 FROM python:3.13-slim-bookworm
 
-RUN groupadd --system app && \
-    useradd --system --gid app --create-home app
-
-COPY --from=builder /app /app
+RUN apt-get update && apt-get install -y --no-install-recommends nginx && \
+    rm -rf /var/log/nginx/* && \
+    rm -rf /var/lib/apt/lists/*
 
+# Honcho
+COPY --from=honcho-builder /app /app
 WORKDIR /app
 ENV PATH="/app/.venv/bin:$PATH"
 ENV HOME=/app
+COPY config.toml /app/config.toml
 
-COPY --chown=app:app config.toml /app/config.toml
+# OpenConcho SPA
+COPY --from=openconcho-builder /app/packages/web/dist /usr/share/nginx/html
+
+# nginx config (proxies /v3/, /v2/ to Honcho on localhost:8000)
+COPY honcho-nginx.conf /etc/nginx/conf.d/default.conf
+RUN rm -f /etc/nginx/sites-enabled/default
+
+RUN groupadd --system app && \
+    useradd --system --gid app --create-home app && \
+    chown -R app:app /app /usr/share/nginx/html
 
 USER app
-EXPOSE 8000
 
-CMD ["fastapi", "run", "--host", "0.0.0.0", "src/main.py"]
+EXPOSE 80
+
+CMD ["sh", "-c", "nginx && exec fastapi run --host 127.0.0.1 --port 8000 src/main.py"]

ai/honcho/honcho-nginx.conf

@@ -0,0 +1,52 @@
+server {
+    listen 80 default_server;
+    listen [::]:80 default_server;
+    server_name _;
+
+    root /usr/share/nginx/html;
+    index index.html;
+
+    # Honcho API proxy
+    location /v3/ {
+        proxy_pass http://127.0.0.1:8000;
+        proxy_http_version 1.1;
+        proxy_set_header Host $host;
+        proxy_set_header X-Real-IP $remote_addr;
+        proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
+        proxy_set_header X-Forwarded-Proto $scheme;
+    }
+
+    location /v2/ {
+        proxy_pass http://127.0.0.1:8000;
+        proxy_http_version 1.1;
+        proxy_set_header Host $host;
+        proxy_set_header X-Real-IP $remote_addr;
+        proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
+        proxy_set_header X-Forwarded-Proto $scheme;
+    }
+
+    # Honcho health
+    location /health {
+        proxy_pass http://127.0.0.1:8000;
+        proxy_http_version 1.1;
+        proxy_set_header Host $host;
+        proxy_set_header X-Real-IP $remote_addr;
+        proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
+        proxy_set_header X-Forwarded-Proto $scheme;
+    }
+
+    # OpenAPI docs
+    location /openapi.json {
+        proxy_pass http://127.0.0.1:8000;
+        proxy_http_version 1.1;
+        proxy_set_header Host $host;
+        proxy_set_header X-Real-IP $remote_addr;
+        proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
+        proxy_set_header X-Forwarded-Proto $scheme;
+    }
+
+    # SPA: fallback to index.html for client-side routing
+    location / {
+        try_files $uri $uri/ /index.html;
+    }
+}