fix(openclaw): preserve tool call linkage in converted history

refactor(openclaw): DRY up duplicate code across plugin

fix(openclaw): proxyPort only applies to local URLs, consistency pass

feat(openclaw): support remote Headroom proxy (connect-only)

docs: add OpenClaw plugin section to main README

Remove skipped integration test registration

Add comprehensive tests for proxy detection and launcher logic

Harden openclaw plugin proxy handling and metadata

OpenClaw plugin fixes, telemetry fix, cost tracker improvement, tokenBudget support

feat: add OpenClaw ContextEngine plugin (@headroom-ai/openclaw)