Chassis + Vahan unified lookup. Single plate or series.
GET /health
GET /info?key=K&vehicle=MBLHA10BFFHA34668
GET /info/bulk?key=K&vehicles=A,B,C POST /info/bulk {"key":"K","vehicles":[...]} GET /info/bulk/<job>?key=K GET /info/bulk/<job>/results/json?key=K GET /info/bulk/<job>/results/txt?key=K
POST /series {"key":"K","series":"PY05QA0001","mode":"digits|letters|single","quantity":9999} GET /series/<id>?key=K GET /series/<id>/download/txt?key=K GET /series/<id>/download/csv?key=K GET /series/<id>/check?key=K GET /series/<id>/check/status?key=K POST /series/<id>/check/retry-failed?key=K GET /series/<id>/results/json?key=K GET /series/<id>/results/txt?key=K GET /series/<id>/results/csv?key=K
Series string = SS RR LL DDDD. State 2L, RTO 2D, series 1-2L, unique 4D.
Prefixes exclude I and O - 24-letter alphabet. Unique 0001-9999.