subgroup/conditional repair bundle

local repair run id: v2_conditional_subgroup_repair_local_20260526_sync3
purpose: backfill missing accepted SQL coverage for conditional and subgroup in v2
source inventory: server-generated minimal rerun inventories under tmp/minimal_subgroup_conditional_rerun_20260526/server_generated
intended canonical targets on server:
- sql_workloads/v2_current/runs_and_launches/runs/v2_conditional_subgroup_repair_local_20260526_sync3
- sql_workloads/v2_current/grounding/registries/v2_conditional_subgroup_repair_local_20260526_sync3_query_registry_v2.*