feat(kernel,artifacts): inject artifact-kind vocabulary into architect context

core/artifacts/src/main/kotlin/com/correx/core/artifacts/kind/ArtifactKindRegistry.kt

@@ -3,6 +3,7 @@ package com.correx.core.artifacts.kind
 interface ArtifactKindRegistry {
     fun register(kind: ArtifactKind)
     fun get(id: String): ArtifactKind?
+    fun list(): Collection<ArtifactKind>
 }
 
 class DefaultArtifactKindRegistry : ArtifactKindRegistry {
@@ -18,4 +19,6 @@ class DefaultArtifactKindRegistry : ArtifactKindRegistry {
     }
 
     override fun get(id: String): ArtifactKind? = kinds[id]
+
+    override fun list(): Collection<ArtifactKind> = kinds.values.toList()
 }

core/artifacts/src/test/kotlin/com/correx/core/artifacts/kind/ArtifactKindRegistryTest.kt

@@ -51,4 +51,25 @@ class ArtifactKindRegistryTest {
         assert("path" in schema.required)
         assert("content" in schema.required)
     }
+
+    @Test
+    fun `list returns all registered kinds`() {
+        val ids = registry.list().map { it.id }.toSet()
+        assert("file_written" in ids) { "expected file_written in $ids" }
+        assert("process_result" in ids) { "expected process_result in $ids" }
+        assertEquals(2, ids.size)
+    }
+
+    @Test
+    fun `list reflects newly registered kind`() {
+        val schema = JsonSchema(
+            type = "object",
+            properties = mapOf("x" to JsonSchemaProperty(type = "string")),
+            required = listOf("x"),
+        )
+        registry.register(ConfigArtifactKind(id = "extra", schema = schema, llmEmitted = true))
+        val ids = registry.list().map { it.id }.toSet()
+        assert("extra" in ids) { "expected extra in $ids" }
+        assertEquals(3, ids.size)
+    }
 }