fix: consolidate compound-docs into ce-compound skill (#390)

tests/compound-support-files.test.ts

@@ -0,0 +1,30 @@
+import { readFile } from "fs/promises"
+import path from "path"
+import { describe, expect, test } from "bun:test"
+
+const PLUGIN_ROOT = path.join(process.cwd(), "plugins", "compound-engineering", "skills")
+
+/** Canonical copies live in ce-compound; mirrors must stay identical. */
+const SHARED_SUPPORT_FILES = [
+  "references/schema.yaml",
+  "references/yaml-schema.md",
+  "assets/resolution-template.md",
+]
+
+const SKILLS_WITH_COPIES = ["ce-compound", "ce-compound-refresh"]
+
+describe("ce:compound support file drift", () => {
+  for (const file of SHARED_SUPPORT_FILES) {
+    test(`${file} is identical across ${SKILLS_WITH_COPIES.join(", ")}`, async () => {
+      const contents = await Promise.all(
+        SKILLS_WITH_COPIES.map((skill) =>
+          readFile(path.join(PLUGIN_ROOT, skill, file), "utf8"),
+        ),
+      )
+
+      for (let i = 1; i < contents.length; i++) {
+        expect(contents[i]).toBe(contents[0])
+      }
+    })
+  }
+})