Nomad changes

fixtures/contract/config_tree_sitter.json

@@ -0,0 +1,51 @@
+{
+  "id": "config_tree_sitter",
+  "description": "Tests tree-sitter configuration round-trip",
+  "tags": [
+    "contract",
+    "config",
+    "tree-sitter"
+  ],
+  "call": "extract_file_sync",
+  "input": {
+    "path": "code/hello.py",
+    "config": {
+      "tree_sitter": {
+        "languages": [
+          "python",
+          "rust"
+        ],
+        "groups": [
+          "web"
+        ],
+        "process": {
+          "structure": true,
+          "imports": true,
+          "exports": true,
+          "comments": false,
+          "docstrings": false,
+          "symbols": false,
+          "diagnostics": false
+        }
+      }
+    }
+  },
+  "assertions": [
+    {
+      "type": "equals",
+      "field": "mime_type",
+      "value": "text/x-source-code"
+    },
+    {
+      "type": "min_length",
+      "field": "content",
+      "value": 5
+    }
+  ],
+  "skip": {
+    "languages": [
+      "wasm"
+    ],
+    "reason": "WASM cannot access filesystem; use extractBytes with file content instead"
+  }
+}