feat: lib-core.crafting-test v0.1.0 — 12 TAP asserts

Test suite for lib-core.crafting v0.1.0. Covers:

  1. define_recipe + list_recipes round-trip; shallow-copy isolation
     (mutating the returned list does not affect the registry).
  2. define_recipe missing id → Loud-Error.
  3. define_recipe duplicate id → Loud-Error.
  4. define_recipe empty inputs → Loud-Error.
  5. get_recipe known/unknown.
  6. is_known propagates ctx-identity to recipe.is_known(ctx).
  7. can_craft happy-path → ok=true.
  8. can_craft missing inputs → error='missing_inputs' +
     missing-array with {template, needed, have}.
  9. craft happy-path: consumes 2, crafts 1, container has only output.
 10. craft unknown recipe → ok=false, error='unknown_recipe',
     container untouched.
 11. craft is_known=false → ok=false, error='unknown_recipe',
     container untouched.
 12. count-form: 2-of-3 reports missing={template, needed=3, have=2}.

Uses engine.test.assert with string.find for pattern matching
loud-error messages (engine.test has no assert_match helper).
Per-test isolation via crafting._test_clear_all; composition templates
are defined once at module-scope (composition has no clear-all hook).

Depends on lib-core.crafting 0.1.0, lib-core.inventory-list 0.1.0,
lib-core.composition 0.3.0 (all three direct, per non-transitive
engine resolver).

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

LICENSE

@@ -0,0 +1,24 @@
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+
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