Improve runtime routing, stack deployment, and proxy console UX

[goodnightzsj]

Summary

• improve MySearch runtime routing and evidence for official/docs/research flows
• refine X/Social provider health probes and model fallback behavior
• add stack deployment/bootstrap and proxy console improvements without tracking llmdoc
• sync OpenClaw runtime and add regression tests

What changed

• tighten official/docs routing, restricted-domain retry, research evidence, and provider fallback/error handling
• refine xAI compatible and official health probe behavior to avoid heavy-model false negatives
• add single-container stack deployment, proxy token bootstrap, and unified sqlite path handling
• overhaul proxy console and MySearch access UI
• add docker publish workflow and supporting tests

Validation

• python3 tests/test_clients.py
• python3 tests/test_comprehensive.py
• python3 -m unittest discover -s tests
• bash scripts/check_sync.sh
• git diff --check