Logical replication consumers need FULL replica identity to reconstruct the
old row of an UPDATE or DELETE, and prisma leaves every table it creates at
the postgres default. Operators had to re-apply the setting by hand after
each migration run.
Setting LITELLM_SET_REPLICA_IDENTITY_FULL now re-asserts it on every LiteLLM
table at the end of a successful migration run, through the prisma CLI so the
dependency-free proxy-extras package stays that way. Tables that are already
FULL are skipped, foreign tables in the same schema are left alone, and a
database that refuses the ALTER is reported rather than failing the run.
Resolves LIT-3022
Once the active Prisma client is in the disconnected state, every DB call
raises ClientNotConnectedError. The reconnect machinery was supposed to
recover from this, but _get_engine_pid() inspected the broken client via
prisma's _engine property, which re-raises that same error, so
recreate_prisma_client failed before it could build a replacement client
and the proxy looped on failed reconnects forever (issue #28322 showed
1486+ consecutive failures over 30 days with zero recoveries)
Guard both _get_engine_pid implementations with is_connected() so a
disconnected client reads as "no engine" (pid 0) and the recreate path
proceeds to construct and connect a fresh client
* ensure original client is disconnected when re-creating
* test_recreate_prisma_client_successful_disconnect
* test_recreate_prisma_client_successful_disconnect
