cronos: add mainnet EVM chain (chain-id 25) as client-type node

Add cronosd cometbft.Dockerfile and init.sh for Cronos EVM mainnet.
- Dockerfile: layer cometbft-common.sh + init.sh onto upstream cronos image
- init.sh: adapted from haqq pattern with EVM JSON-RPC on 8545, WS on 8546,
  CometBFT RPC on 26657, P2P on 10521, chain-id cronosmainnet_25-1
- Statesync via ct_configure_statesync, genesis from official repo
- Pruning: custom with keep-recent=100, interval=19

Generated by Mistral Vibe.
Co-Authored-By: Mistral Vibe <vibe@mistral.ai>

cronos/cometbft.Dockerfile

@@ -0,0 +1,11 @@
+ARG CRONOS_CRONOS_IMAGE
+ARG CRONOS_CRONOS_VERSION
+FROM ${CRONOS_CRONOS_IMAGE}:${CRONOS_CRONOS_VERSION}
+# Layer the shared CometBFT bootstrap lib + the chain init.sh onto the upstream
+# cronos binary image (alpine-based, has sh+apk; runs nonroot by default — the compose
+# sets user: root so init.sh can apk-add curl and write the /root home).
+USER root
+COPY ./scripts/cometbft-common.sh /usr/local/bin/cometbft-common.sh
+COPY ./scripts/init.sh            /usr/local/bin/init.sh
+RUN chmod +x /usr/local/bin/init.sh /usr/local/bin/cometbft-common.sh
+ENTRYPOINT ["init.sh"]