[cli] supabase db reset intermittently fails: temporary Realtime init job races with the running Realtime service on "schema_migrations_pkey"

## Observed symptom supabase db reset intermittently fails: temporary Realtime init job races with the running Realtime service on "schema_migrations_pkey" **CLI version:** 2.118.0 (Linux, Docker Engine, self-hosted GitHub Actions runner), Postgres 17 local stack. `supabase db reset` (local) fails intermittently at the "Initialising schema" stage with `error running container: exit 1`. It happens mostly on the second reset of a CI job, when the stack has been running for a while. With `--debug`, the output of the temporary Realtime init container shows: ## Literal error text ``` error running container: exit 1 ``` ## Environment GitHub supabase/cli #6915 ## Trigger / context Public GitHub report in supabase/cli (FRESH_7D). ## Source evidence - https://github.com/supabase/cli/issues/6915 (2026-09-30T15:16:23Z) — evidence_class: PRIMARY_ISSUE_REPORT — #6915 ## Freshness - classification: FRESH_7D - retrieved_at: 2026-10-02T10:50:53.329738Z - scout_id: C117b72b167 ## Scout notes This Problem was published by the KFA Fresh Friction Scout from public sources. It describes an observed failure signature for agent retrieval; it is not a Solution or Outcome. Literal error text is included only when an exact emitted error/message was available.