Phase 5: field moves from Cobblemon HMs

Adrian (2026-10-31): use Cobblemon HMs; mining ore is the one hard
requirement, furnaces get lit by a Pokemon inside a Phase 6 machine.

- Cobblemon HMs 4.1.0 in the pack (Modrinth), default config.
- Self-test rock_smash_mines_veins: HMs' Rock Smash breaks a
  regenerating vein, the ore drops and the vein becomes a regenerator.
- HMs' Trainer Ditto (a wild Ditto underneath) is exempt from the
  hostility scan and the stray despawn (world/SpecialPokemon.kt).
- Docs: licenses, addon status, design, balance, roadmap note,
  Phase 5 checklist with the open questions for Adrian.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

pack/index.toml

@@ -126,6 +126,11 @@ file = "mods/cobblemon-fight-or-flight-reborn.pw.toml"
 hash = "227eea45819938ae2e0911d825e9ccf0e0236b1a36e46627204d8aa53becc9e7"
 metafile = true
 
+[[files]]
+file = "mods/cobblemon-hms.pw.toml"
+hash = "36f7da26797651777c39409f5e8b2aeb2fe8b7d59a0a62a791a9c6b2c2d318e8"
+metafile = true
+
 [[files]]
 file = "mods/cobblemon-poke-power.pw.toml"
 hash = "29ccd4c39e5af1a2fb63a40bf67ecd03bcced42e9e1edf296b26fd1847740a54"