Phase 5: Cobblebase jobs take back gated work, dig only zone ores

From Adrian's Mining test (2026-10-31):

- A gated job assigned to a pastured Pokemon that doesn't pass its gate
  is taken back at once (BaseManager assignment cleared, Cobblebase's
  assignment sync sent, owner told what the Pokemon needs), so it no
  longer sticks or shows under Buffs -> Active.
- Mining, Ore Finder and Evolution-item Finder only give the ores and
  evolution stones of the pasture's zone: new loot condition
  cobblesurvival:in_zone, the pack's versions of the 12 Cobblebase
  tables (tools/cobblebase_loot.py), Cobblebase's built-in copies
  removed at server start (ore/BaseLoot.kt). Mining adds quartz and the
  evolution stones, drops the type gems.
- Mining's loot reaching the chest needs an Item Gatherer in the same
  pasture (Cobblebase's design); documented, not changed.
- Self-tests gated_jobs_are_taken_back, base_jobs_dig_their_zones_ores;
  docs, balance table, licenses, Phase 5 checklist.

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

docs/licenses.md

@@ -57,6 +57,7 @@ Licenses of mods planned for later phases are in `docs/addon-status.md` and move
 | `pack/config/worldgen_editor/presets/cobblesurvival_island.json` | Field format of WorldGen Editor presets; our own values | CC BY-NC-SA 4.0 to be safe |
 | `datapacks/core/data/cobblemon/worldgen/placed_feature/ore/*.json` | Cobblemon's placed features (feature id kept, placement replaced) | MPL-2.0, like Cobblemon |
 | `datapacks/core/data/cobblemon/worldgen/processor_list/**`, `.../template_pool/**` | Cobblemon's processor lists with an ore-stripping rule appended, and Gimmighoul tower pools without their mob pieces (`tools/clean_structures.py`) | MPL-2.0, like Cobblemon |
+| `datapacks/core/data/cobblebase/loot_table/*.json` | Cobblebase's mining, Ore Finder and Evolution-item Finder loot tables, with zone conditions added and type gems removed (`tools/cobblebase_loot.py`) | MPL-2.0, like Cobblebase |
 | `datapacks/core/data/cobblesurvival/spawn_pool_world/*.json`, `docs/zone-species.md` | Cobblemon's spawn pool entries, regrouped by zone with levels clamped (`tools/zone_spawns.py`) | MPL-2.0, like Cobblemon |
 | `datapacks/core/data/minecraft/worldgen/processor_list/fossil_*.json`, `datapacks/core/data/minecraft/tags/worldgen/biome/has_structure/*.json` | Vanilla fossil processor lists (ore rule appended) and structure biome tags (basalt deltas removed) | Mojang's data, adapted as data packs commonly do |