* perf(ecstore): add gated two-phase GET metadata reads Co-Authored-By: heihutu <[email protected]> * fix(ecstore): require data-shard coverage for read plans Co-Authored-By: heihutu <[email protected]> * perf(ecstore): avoid inline overhead in read plan rollout Co-Authored-By: heihutu <[email protected]> * perf(ecstore): accept quorum-complete read candidates Co-Authored-By: heihutu <[email protected]> --------- Co-authored-by: heihutu <[email protected]>