fix(docker): probe local ClickHouse health over IPv4

[izadoesdev]

Summary

The dev docker-compose.yaml healthcheck ran wget http://localhost:8123/ping. Inside the container localhost resolves to [::1], but ClickHouse listens on IPv4, so the probe is refused every time and the container reports unhealthy forever (84,642 consecutive failures on one machine) regardless of whether the server is fine. That hides real outages: a ClickHouse that is actually hung looks identical to a healthy one.

docker-compose.selfhost.yml already probes 127.0.0.1 since #804; this applies the same fix to the dev compose file.

Test plan

• Inside the running dev container: wget --spider http://127.0.0.1:8123/ping succeeds; the localhost form is refused
• docker compose -f docker-compose.yaml config -q

---

Summary by cubic

Fixes the dev ClickHouse healthcheck so it probes IPv4 instead of localhost, which resolved to [::1] inside the container and never matched ClickHouse's IPv4 listener. The container now correctly reports healthy; docker-compose.selfhost.yml already used 127.0.0.1.

^{Written for commit 0aec854. Summary will update on new commits.}

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[greptile-apps]

Confidence Score: 5/5

[Low risk] Changes local health check endpoint address.

The PR appears safe to merge.

Summary

The dev ClickHouse healthcheck now probes 127.0.0.1 instead of localhost, matching the self-hosted Compose healthcheck and avoiding an IPv6 loopback resolution that can falsely mark the container unhealthy.

_{Reviews (1) · Last reviewed commit: "fix(docker): probe local ClickHouse heal..."}