refactor: separate standalone and managed room configs

- veins → shunts rename
- add cfg/standalone/ and cfg/<room>/ structure
- remove old data/*.json (moved to cfg/<room>/data/)
- update build.py and ctrl scripts

.woodpecker.yml

@@ -0,0 +1,28 @@
+# Generic woodpecker trigger
+# Copy to any repo as .woodpecker.yml
+# Runs matching pipeline from ppl/pipelines/<repo>/
+
+when:
+  event: push
+  branch: main
+
+steps:
+  - name: build
+    image: alpine
+    commands:
+      - apk add --no-cache git openssh-client
+      - mkdir -p ~/.ssh
+      - echo "$SSH_KEY" | base64 -d > ~/.ssh/id_rsa
+      - chmod 600 ~/.ssh/id_rsa
+      - ssh -o StrictHostKeyChecking=no mariano@mcrn.ar "cd ~/ppl && ./ctrl/run-pipeline.sh ${CI_REPO_NAME} build"
+    secrets: [ssh_key]
+
+  - name: deploy
+    image: alpine
+    commands:
+      - apk add --no-cache openssh-client
+      - mkdir -p ~/.ssh
+      - echo "$SSH_KEY" | base64 -d > ~/.ssh/id_rsa
+      - chmod 600 ~/.ssh/id_rsa
+      - ssh -o StrictHostKeyChecking=no mariano@mcrn.ar "cd ~/ppl && ./ctrl/run-pipeline.sh ${CI_REPO_NAME} deploy"
+    secrets: [ssh_key]