Companion containers return JSON response

- Allow to return the complete error from companion containers
- Add a convert timeout on all companion containers (bpmn, excalidraw, mermaid and diagrams.net)
- Add logger on all companion containers
- Make a distinction between unexpected errors and bad syntax errors
- Switch to ESM

bpmn/Dockerfile

@@ -11,7 +11,9 @@ WORKDIR /usr/local/kroki/
 
 RUN mkdir -p /usr/local/kroki/node && chown kroki:kroki -R /usr/local/kroki
 
-ENV KROKI_EXCALIDRAW_PAGE_URL=file:///usr/local/kroki/assets/index.html
+ENV KROKI_BPMN_PAGE_URL=file:///usr/local/kroki/assets/index.html
+# 15 seconds
+ENV KROKI_BPMN_CONVERT_TIMEOUT=15000
 ENV PUPPETEER_EXECUTABLE_PATH=/usr/lib/chromium/chrome
 #ENV DEBUG="puppeteer:*"
 ENV LEVEL="info"
@@ -25,4 +27,3 @@ RUN npm i --omit=dev
 EXPOSE 8003
 
 ENTRYPOINT ["node", "src/index.js"]
-

bpmn/package.json

@@ -2,6 +2,7 @@
   "name": "@kroki/bpmn-server",
   "version": "1.0.0",
   "description": "A micro server built on top of the BPMN diagram library.",
+  "type": "module",
   "main": "src/index.js",
   "bin": "src/index.js",
   "scripts": {
@@ -20,6 +21,8 @@
   "dependencies": {
     "bpmn-js": "14.0.0",
     "micro": "10.0.1",
+    "pino": "^8.15.0",
+    "pino-debug": "^2.0.0",
     "puppeteer": "20.6.0"
   },
   "devDependencies": {