实现附件处理链路的统一引用化与可检索增强，避免大文件/多模态内容直接撑爆上下文并提升工具可用性。

本次补齐 text/image/video/archive 的标准化处理、会话级工具守卫、回放压缩、配置与文档对齐，并修复表格与流式输出相关体验问题。

Made-with: Cursor

tests/test_video_query_tool.py

@@ -0,0 +1,19 @@
+from __future__ import annotations
+
+import oclaw.runtime.tools.experts.generalist.video_query as vq
+
+
+def test_normalized_video_meta_extracts_top_level_fields() -> None:
+    obj = {
+        "format": {"duration": "12.50"},
+        "streams": [
+            {"codec_type": "audio", "sample_rate": "48000"},
+            {"codec_type": "video", "width": 1920, "height": 1080, "avg_frame_rate": "30000/1001"},
+        ],
+    }
+    out = vq._normalized_video_meta(obj)
+    assert float(out.get("duration_sec") or 0.0) > 12.0
+    assert int(out.get("width") or 0) == 1920
+    assert int(out.get("height") or 0) == 1080
+    assert float(out.get("fps") or 0.0) > 29.0
+