ci(v3): publish isolated docker images

tests/test_resource_v3.py

@@ -29,3 +29,23 @@ def test_install_and_docker_paths_do_not_reference_v2_resources():
         assert "resources.v2" not in content
         assert "user.sites.v2.bin" not in content
         assert "resources.v3" in content
+
+
+def test_v3_release_workflows_use_isolated_branches_and_images():
+    """V3 正式版和 Beta 构建不得写入 V2 或无版本后缀的镜像仓库。"""
+    build_workflow = (ROOT_DIR / ".github" / "workflows" / "build.yml").read_text(encoding="utf-8")
+    beta_workflow = (ROOT_DIR / ".github" / "workflows" / "beta.yml").read_text(encoding="utf-8")
+
+    assert "name: MoviePilot Builder v3" in build_workflow
+    assert "      - v3" in build_workflow
+    assert "          ref: v3" in build_workflow
+    assert "${{ secrets.DOCKER_USERNAME }}/moviepilot-v3" in build_workflow
+    assert "ghcr.io/${{ github.repository }}-v3" in build_workflow
+    assert "${{ secrets.DOCKER_USERNAME }}/moviepilot-v2" not in build_workflow
+    assert "${{ secrets.DOCKER_USERNAME }}/moviepilot\n" not in build_workflow
+    assert "git tag -l 'v3.*'" in build_workflow
+
+    assert "          ref: v3" in beta_workflow
+    assert "${{ secrets.DOCKER_USERNAME }}/moviepilot-v3" in beta_workflow
+    assert "ghcr.io/${{ github.repository }}-v3" in beta_workflow
+    assert "${{ secrets.DOCKER_USERNAME }}/moviepilot-v2" not in beta_workflow