v1.1.2

Fix

• introspect + run can now share one .df-credentials.json. Source-connection
  credentials for sqlanvil introspect go under a connections: { <name>: {...} } map,
  alongside the flat write-warehouse credentials. run validates the warehouse creds and
  ignores connections; introspect reads from it. Previously the two were mutually
  exclusive (the strict warehouse-creds validator rejected the per-connection keys
  introspect required), so the named-connections introspect workflow couldn't be used in
  a real project. Backward-compatible: a flat file with no connections key is unchanged.

Docs

• Named-connections docs scoped to BigQuery sources (the supported path). Postgres/Supabase
  sources compile but aren't yet runnable (the postgres_fdw user mapping isn't emitted) —
  tracked for a future release.