feat(fixtures): migrate error fixtures to FR5a envelope shape

Rewrites every `error-*` fixture's `expected-errors.json` from the legacy
`[{code}]` array to the ADR-0009 envelope:

  { errors: [ { code, source: { format, files, jsonPath } } ], warnings: [] }

Coverage:
  - 25 fixtures under fixtures/conformance/
  - 3  fixtures under fixtures/yaml-conformance/

JSONPath / source.format / source.files come from the actual envelope each
TS ParseError emits at load time. TS is the FR5a reference port; cross-port
drift surfaced by this migration is documented in each port's ledger.

Includes scripts/migrate-error-fixtures.ts — the one-shot tool that did the
bulk migration by loading every fixture through the TS loader and writing
the resulting envelope back to disk. Kept in-tree for re-running if the
envelope shape evolves.

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

Author: dmealing

fixtures/conformance/error-attr-bad-allowed-value/expected-errors.json

@@ -1,5 +1,15 @@
-[
-  {
-    "code": "ERR_BAD_ATTR_VALUE"
-  }
-]
+{
+  "errors": [
+    {
+      "code": "ERR_BAD_ATTR_VALUE",
+      "source": {
+        "format": "json",
+        "files": [
+          "meta.users.json"
+        ],
+        "jsonPath": "$['metadata.root'].children[0]['object.entity'].children[1]['identity.primary']"
+      }
+    }
+  ],
+  "warnings": []
+}

fixtures/conformance/error-attr-filter-bad-field/expected-errors.json

@@ -1,5 +1,15 @@
-[
-  {
-    "code": "ERR_BAD_ATTR_FILTER"
-  }
-]
+{
+  "errors": [
+    {
+      "code": "ERR_BAD_ATTR_FILTER",
+      "source": {
+        "format": "json",
+        "files": [
+          "meta.users.json"
+        ],
+        "jsonPath": "$['metadata.root'].children[0]['object.entity'].children[5]['layout.dataGrid']"
+      }
+    }
+  ],
+  "warnings": []
+}

fixtures/conformance/error-attr-filter-bad-op/expected-errors.json

@@ -1,5 +1,15 @@
-[
-  {
-    "code": "ERR_BAD_ATTR_FILTER"
-  }
-]
+{
+  "errors": [
+    {
+      "code": "ERR_BAD_ATTR_FILTER",
+      "source": {
+        "format": "json",
+        "files": [
+          "meta.users.json"
+        ],
+        "jsonPath": "$['metadata.root'].children[0]['object.entity'].children[4]['layout.dataGrid']"
+      }
+    }
+  ],
+  "warnings": []
+}

fixtures/conformance/error-attr-filter-legacy-string/expected-errors.json

@@ -1,5 +1,15 @@
-[
-  {
-    "code": "ERR_BAD_ATTR_VALUE"
-  }
-]
+{
+  "errors": [
+    {
+      "code": "ERR_BAD_ATTR_VALUE",
+      "source": {
+        "format": "json",
+        "files": [
+          "meta.users.json"
+        ],
+        "jsonPath": "$['metadata.root'].children[0]['object.entity'].children[4]['layout.dataGrid']"
+      }
+    }
+  ],
+  "warnings": []
+}

fixtures/conformance/error-attr-missing-required/expected-errors.json

@@ -1,5 +1,15 @@
-[
-  {
-    "code": "ERR_MISSING_REQUIRED_ATTR"
-  }
-]
+{
+  "errors": [
+    {
+      "code": "ERR_MISSING_REQUIRED_ATTR",
+      "source": {
+        "format": "json",
+        "files": [
+          "meta.users.json"
+        ],
+        "jsonPath": "$['metadata.root'].children[0]['object.entity'].children[1]['identity.primary']"
+      }
+    }
+  ],
+  "warnings": []
+}

fixtures/conformance/error-attr-wrong-type/expected-errors.json

@@ -1,5 +1,15 @@
-[
-  {
-    "code": "ERR_BAD_ATTR_VALUE"
-  }
-]
+{
+  "errors": [
+    {
+      "code": "ERR_BAD_ATTR_VALUE",
+      "source": {
+        "format": "json",
+        "files": [
+          "meta.users.json"
+        ],
+        "jsonPath": "$['metadata.root'].children[0]['object.entity'].children[3]['layout.dataGrid']"
+      }
+    }
+  ],
+  "warnings": []
+}

fixtures/conformance/error-data-grid-bad-sort-field/expected-errors.json

@@ -1,5 +1,15 @@
-[
-  {
-    "code": "ERR_BAD_DEFAULT_SORT_FIELD"
-  }
-]
+{
+  "errors": [
+    {
+      "code": "ERR_BAD_DEFAULT_SORT_FIELD",
+      "source": {
+        "format": "json",
+        "files": [
+          "meta.users.json"
+        ],
+        "jsonPath": "$['metadata.root'].children[0]['object.entity'].children[3]['layout.dataGrid']"
+      }
+    }
+  ],
+  "warnings": []
+}

fixtures/conformance/error-enum-duplicate-member/expected-errors.json

@@ -1,5 +1,15 @@
-[
-  {
-    "code": "ERR_BAD_ATTR_VALUE"
-  }
-]
+{
+  "errors": [
+    {
+      "code": "ERR_BAD_ATTR_VALUE",
+      "source": {
+        "format": "json",
+        "files": [
+          "meta.enums.json"
+        ],
+        "jsonPath": "$['metadata.root'].children[0]['object.entity'].children[1]['field.enum']"
+      }
+    }
+  ],
+  "warnings": []
+}

fixtures/conformance/error-enum-empty-values/expected-errors.json

@@ -1,5 +1,15 @@
-[
-  {
-    "code": "ERR_BAD_ATTR_VALUE"
-  }
-]
+{
+  "errors": [
+    {
+      "code": "ERR_BAD_ATTR_VALUE",
+      "source": {
+        "format": "json",
+        "files": [
+          "meta.enums.json"
+        ],
+        "jsonPath": "$['metadata.root'].children[0]['object.entity'].children[1]['field.enum']"
+      }
+    }
+  ],
+  "warnings": []
+}

fixtures/conformance/error-enum-missing-values/expected-errors.json

@@ -1,5 +1,15 @@
-[
-  {
-    "code": "ERR_MISSING_REQUIRED_ATTR"
-  }
-]
+{
+  "errors": [
+    {
+      "code": "ERR_MISSING_REQUIRED_ATTR",
+      "source": {
+        "format": "json",
+        "files": [
+          "meta.enums.json"
+        ],
+        "jsonPath": "$['metadata.root'].children[0]['object.entity'].children[1]['field.enum']"
+      }
+    }
+  ],
+  "warnings": []
+}