Add D&D spells pipeline integration tests

internal/modules/extract/dnd/spells/testdata/pipeline.yml

@@ -0,0 +1,11 @@
+version: 1
+pipelines:
+  dnd-spells-fixture:
+    input: seriatim
+    chunk: fake/chunk
+    artifacts:
+      spells:
+        extract: dnd/spells
+        merge: appendorder
+        normalize: noop
+    output: json

internal/modules/extract/dnd/spells/testdata/seriatim_spell_session.json

@@ -0,0 +1,29 @@
+{
+  "metadata": {
+    "id": "spell-session",
+    "title": "Synthetic D&D spell session"
+  },
+  "segments": [
+    {
+      "id": "seg-001",
+      "start": 0,
+      "end": 4,
+      "speaker": "Alice",
+      "text": "Aria raises her holy symbol and casts Cure Wounds."
+    },
+    {
+      "id": "seg-002",
+      "start": 4,
+      "end": 8,
+      "speaker": "DM",
+      "text": "The bandit mage casts Shield as the blow lands."
+    },
+    {
+      "id": "seg-003",
+      "start": 8,
+      "end": 12,
+      "speaker": "Bob",
+      "text": "Borin points at the wight and casts Fire Bolt."
+    }
+  ]
+}