Closes the WSPL open-format loop with --export-wspl-json /
--import-wspl-json, mirroring the JSON pairs added for
every other novel binary format. All 14 binary formats
added since WOL now have full JSON round-trip authoring.
Each spell round-trips all 18 scalar fields. Four enum-typed
fields emit dual int + name forms so a hand-author can use
either:
• school (physical / holy / fire / nature / frost / shadow / arcane)
• targetType (self / single / cone / aoe-self / line / ground)
• effectKind (damage / heal / buff / debuff / teleport / summon / dispel)
• flags (passive / channeled / ranged / aoe / friendly / hostile / ...)
The flags bitset emits string-array form so a hand-author
can write ["hostile", "aoe"] instead of having to remember
that HostileOnly|AreaOfEffect = 0x110.
Verified byte-identical round-trip on the mage preset (4
spells covering frost / fire / arcane schools and damage /
buff / teleport effects, full flag and effect-value coverage).
Adds 2 flags (544 documented total now).