Sub-ticket of MARS-150 Investigate Mars exposure to the PLUTO-145/EVO-6 pool-acquire-timeout class: does getPracticaLookups-equivalent + /practicas//reportes filter-lookup loaders fire ~N concurrent pool.query on hot student paths (claiming a big share of pool max=8 under concurrent students)? If so, scope json-CTE bundling (venus's fix: ~10 conns -> 1) as complement to MARS-145 pool sizing · mars