openclaw: fix plugin id mismatch warning (manifest vs entry hint)

[openclaw-bitrouterai]

Problem

Every OpenClaw command that loads the plugin prints:

Config warnings:
- plugins.entries.bitrouter: plugin bitrouter: plugin id mismatch (manifest uses "bitrouter", entry hints "openclaw-plugin")

This is cosmetic and non-blocking but appears on every run, which is noisy and may alarm users.

Root cause

The OpenClaw plugin manifest (openclaw.plugin.json) declares "id": "bitrouter", but the npm package name is @bitrouter/openclaw-plugin. OpenClaw derives the entry hint from the package name (openclaw-plugin) and compares it against the manifest id (bitrouter) — they don't match.

Location

openclaw/openclaw.plugin.json — "id" field at the root.

Fix options

1. Change the manifest id to match the package hint — set "id": "openclaw-plugin" (or whatever OpenClaw derives from @bitrouter/openclaw-plugin)
2. Understand what hint OpenClaw derives — inspect the OpenClaw SDK source to see exactly how it computes the entry hint from the package name, then align the manifest id accordingly
3. Keep "id": "bitrouter" and update the install entry key — if openclaw.json registers the plugin under key "bitrouter", ensure that matches the manifest

Acceptance criteria

• No plugin id mismatch warning on any openclaw command
• Plugin still loads correctly and all 73 tests pass