fix(evidence): validate curated runtime corpus

backend/test/workspace-runtime-renderer.test.ts

@@ -207,6 +207,7 @@ test("renders filesystem Evidence below the immutable revision content root with
 
   expect(rendered.runtime_identity.workspace_revision).toBe(evidenceRevision);
   expect(rendered.evidence).toEqual({
+    schema_version: 2,
     sources: [{
       type: "filesystem",
       root: `/srv/registry/snapshots/${evidenceRevision}/psd-clinical/evidence`,

backend/test/workspaces-schema.test.ts

@@ -442,6 +442,26 @@ test("rejects a schema-versioned Evidence layout that acquires source documents
   }, /curated/i);
 });
 
+test.each(["curated/**/*.yaml", "curated/**"])(
+  "rejects a schema-versioned Evidence layout that uses the non-canonical curated pattern %s",
+  (pattern) => {
+    expectSafeEvidenceError({
+      ...withEvidence({
+        type: "filesystem",
+        uri: "psd-clinical/evidence",
+      }),
+      evidence: {
+        schema_version: 2,
+        source: {
+          type: "filesystem",
+          uri: "psd-clinical/evidence",
+          patterns: [pattern],
+        },
+      },
+    }, /curated\/\*\*\/\*\.md/i);
+  },
+);
+
 test("keeps evidence optional on schema v3", () => {
   expect(validateWorkspaceDescriptor(validWorkspaceObject())).not.toHaveProperty("evidence");
 });