Closes the WCRT open-format loop with --export-wcrt-json /
--import-wcrt-json, mirroring the WOL/WOW/WOMX/WSND/WSPN/
WIT/WLOT JSON pairs. All 8 binary formats added since WOL
now have full JSON round-trip authoring.
Each creature template round-trips all 22 scalar fields.
Three enum-typed fields emit dual int + name forms so a
hand-author can use either:
• typeId (humanoid / beast / dragon / ...)
• familyId (wolf / cat / bear / ... — for beasts)
• npcFlags (vendor / quest / trainer / innkeeper / ...)
• aiFlags (passive / aggressive / flee / call-help / no-leash)
Both flag bitsets emit string-array forms so a hand-author
can write ["vendor", "innkeeper", "repair"] instead of
having to remember that those bits combine to 0x91.
Verified byte-identical round-trip on the merchants preset
(3 NPCs covering innkeeper / smith / alchemist with mixed
flag combinations). Adds 2 flags (502 documented total now).