docs: align cli index with command surface

docs/cli/proxy.md

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+---
+summary: "CLI reference for `openclaw proxy`, the local debug proxy and capture inspector"
+read_when:
+  - You need to capture OpenClaw transport traffic locally for debugging
+  - You want to inspect debug proxy sessions, blobs, or built-in query presets
+title: "proxy"
+---
+
+# `openclaw proxy`
+
+Run the local explicit debug proxy and inspect captured traffic.
+
+This is a debugging command for transport-level investigation. It can start a
+local proxy, run a child command with capture enabled, list capture sessions,
+query common traffic patterns, read captured blobs, and purge local capture
+data.
+
+## Commands
+
+```bash
+openclaw proxy start [--host <host>] [--port <port>]
+openclaw proxy run [--host <host>] [--port <port>] -- <cmd...>
+openclaw proxy coverage
+openclaw proxy sessions [--limit <count>]
+openclaw proxy query --preset <name> [--session <id>]
+openclaw proxy blob --id <blobId>
+openclaw proxy purge
+```
+
+## Query presets
+
+`openclaw proxy query --preset <name>` accepts:
+
+- `double-sends`
+- `retry-storms`
+- `cache-busting`
+- `ws-duplicate-frames`
+- `missing-ack`
+- `error-bursts`
+
+## Notes
+
+- `start` defaults to `127.0.0.1` unless `--host` is set.
+- `run` starts a local debug proxy and then runs the command after `--`.
+- Captures are local debugging data; use `openclaw proxy purge` when finished.