"""Field guide generator for the Cobblemon Survival Pack.

Reads the pack's effective game data (vanilla, NeoForge, every mod jar in
pack/mods, then datapacks/core on top) and writes build/field-guide/:
fieldguide.json (the single source), an HTML guide, and in-game exports.

Entry point: tools/fieldguide/build.py. Overview: docs/field-guide.md.
"""