Phase 9 begins: bigger, sparser veins, a mine-through respawn block, left-out lines

Phase 8 approved (2026-11-09). Adrian's Phase 9 answers: left-out Pokemon rare
in fitting zones; legendaries from crafted summons; no public release.

- Ore veins more sporadic but bigger: nodes about 40 % rarer, veins about 30 %
  further apart, each one block larger in radius. 1.5-3x the ore overall; a
  new island is needed to see it. World check on the regenerated island passes.
- The respawn block (Regenerating Ore Veins' regenerator): the aim passes
  through it unless sneaking (mixin, the pack's first), so ore behind it can be
  mined; much fainter glass through KubeJS assets. Self-test
  regenerator_lets_the_aim_through casts a real ray.
- 31 lines (67 species) with no matching island biome, or no spawn data
  (Rotom), get rare homes in fitting zones (world/zones.json -> homeless).
  Existing spawns and guardians don't change. JEI data and quests regenerated.
- surface_nodes_lie_in_the_ground checks the node's centre column: a wider
  node's edge can lie under a tree or a slope.
- Roadmap: every implemented Pokemon obtainable; Iris and Complementary
  Reimagined as the default shader.

Self-tests and the island check pass.

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

docs/checklists/phase-9.md

@@ -0,0 +1,21 @@
+# Phase 9 – checks for Adrian
+
+## Decided
+
+**2026-11-09:** Pokémon with no biome on the island spawn rarely in fitting zones; legendaries come from crafted summons; ore veins more sporadic but bigger; the respawn block is see-through and mine-through; no public release (Adrian hands the pack out privately). Roadmap additions: every implemented Pokémon obtainable; a shader pack by default (Complementary Reimagined through Iris). Details: `docs/design.md` → "Phase 9".
+
+## Built so far
+
+- **Ore veins:** rarer nodes and wider vein spacing, one block larger in radius. Needs a new island: the save "Cobblemon Survival Island (new veins)" has it. Your other saves keep their old veins.
+- **Respawn block:** much fainter glass; you aim through it unless sneaking. Automated: `regenerator_lets_the_aim_through`.
+- **Left-out Pokémon:** 31 lines (67 species) spawn rarely in fitting zones (`docs/zone-species.md`). Automated: `spawn_pools_are_zoned`, `drop_sources_match_the_server`.
+
+## In game (Prism instance)
+
+- [ ] In the new save, mine into an ore node or vein: the mined blocks turn into faint glass, and you can keep aiming and mining the ore behind them. Sneak and use one: its info still shows.
+- [ ] Do nodes and veins feel right: fewer, bigger? The island has 1.5–3× the old ore; tell me if that's too much.
+- [ ] Spend time in Frostpeak or the Deep Sea: now and then a Beartic, Mamoswine, Empoleon or Walrein turns up. JEI's Island Drops page names the zone.
+
+## Ask Adrian
+
+- All numbers are placeholders (`docs/balance.md`).