fix(release): skip opposite platform push builds

.github/scripts/release-workflow-guards.test.ts

@@ -0,0 +1,25 @@
+import { readFileSync } from "node:fs"
+
+import { describe, expect, it } from "vitest"
+
+const workflow = (name: string) => readFileSync(`.github/workflows/${name}`, "utf8")
+
+describe("release build workflow guards", () => {
+  it("skips direct mobile push builds for desktop release commits on main", () => {
+    const androidWorkflow = workflow("build-android.yml")
+    const iosWorkflow = workflow("build-ios.yml")
+
+    expect(androidWorkflow).toContain("github.ref == 'refs/heads/main'")
+    expect(androidWorkflow).toContain("release(desktop):")
+
+    expect(iosWorkflow).toContain("github.ref == 'refs/heads/main'")
+    expect(iosWorkflow).toContain("release(desktop):")
+  })
+
+  it("skips direct desktop push builds for mobile release commits on mobile-main", () => {
+    const desktopWorkflow = workflow("build-desktop.yml")
+
+    expect(desktopWorkflow).toContain("github.ref == 'refs/heads/mobile-main'")
+    expect(desktopWorkflow).toContain("release(mobile):")
+  })
+})