feat: add github benchmark scan to quickstart

tests/fixtures/github_benchmark_scan/bundle.json

@@ -0,0 +1,39 @@
+{
+  "search_items": [
+    {
+      "full_name": "anthropics/skills",
+      "html_url": "https://github.com/anthropics/skills",
+      "description": "A collection of composable skills for agent workflows, evaluation, and reusable operating patterns.",
+      "stargazers_count": 12800,
+      "topics": ["skills", "agents", "workflow", "evaluation"],
+      "language": "Markdown",
+      "fork": false,
+      "archived": false
+    },
+    {
+      "full_name": "openai/skills",
+      "html_url": "https://github.com/openai/skills",
+      "description": "Reference skills and patterns for creating portable, reusable agent capabilities.",
+      "stargazers_count": 9400,
+      "topics": ["skills", "portable", "agent", "toolchain"],
+      "language": "Markdown",
+      "fork": false,
+      "archived": false
+    },
+    {
+      "full_name": "microsoft/autogen",
+      "html_url": "https://github.com/microsoft/autogen",
+      "description": "Agent orchestration framework with workflow patterns, evaluation, tooling, and portability guidance.",
+      "stargazers_count": 35500,
+      "topics": ["agents", "automation", "toolchain", "workflow"],
+      "language": "Python",
+      "fork": false,
+      "archived": false
+    }
+  ],
+  "readmes": {
+    "anthropics/skills": "# Skills\n\nThis repository documents workflow patterns, evaluation loops, benchmark practices, and review steps for reusable agent skills. It includes examples, references, and quality checks for operating a repeatable process.\n",
+    "openai/skills": "# Skills\n\nThis project emphasizes portable metadata, compatibility adapters, references, templates, and clear execution entrypoints. It keeps core semantics stable while allowing environment-specific packaging.\n",
+    "microsoft/autogen": "# AutoGen\n\nThis framework provides toolchain commands, automation flows, orchestration guidance, and validation practices. It highlights scripts, command entrypoints, and reusable execution structures for agent workflows.\n"
+  }
+}