Nomad changes

fixtures/contract/config_chunking_prepend_heading_context.json

@@ -0,0 +1,52 @@
+{
+  "id": "config_chunking_prepend_heading_context",
+  "description": "Tests markdown chunker prepends heading hierarchy to chunk content",
+  "tags": [
+    "contract",
+    "config",
+    "chunking",
+    "heading-context"
+  ],
+  "call": "extract_file_sync",
+  "input": {
+    "path": "markdown/extraction_test.md",
+    "config": {
+      "chunking": {
+        "chunker_type": "markdown",
+        "max_chars": 300,
+        "max_overlap": 50,
+        "prepend_heading_context": true
+      }
+    }
+  },
+  "assertions": [
+    {
+      "type": "min_length",
+      "field": "content",
+      "value": 10
+    },
+    {
+      "type": "count_min",
+      "field": "chunks",
+      "value": 2
+    },
+    {
+      "type": "is_true",
+      "field": "chunks_have_content"
+    },
+    {
+      "type": "is_true",
+      "field": "chunks_have_heading_context"
+    },
+    {
+      "type": "is_true",
+      "field": "first_chunk_starts_with_heading"
+    }
+  ],
+  "skip": {
+    "languages": [
+      "wasm"
+    ],
+    "reason": "WASM cannot access filesystem; use extractBytes with file content instead"
+  }
+}