v2.2.10

Changes

• 51a0bcb fix: graceful tool-loop limit — inject stubs instead of hard-cutting
• 40ae3ce fix: remove context saturation guard that incorrectly stripped tools
• a555e6c feat: map xhigh reasoning effort to verbosity: "max" for Claude Opus/Sonnet
• 7162834 feat: preserve cache_control on tool definitions and add adaptive Anthropic breakpoint injection
• a23723f feat: sync Responses API allowlist with live OpenRouter OpenAPI spec
• af3ae25 feat: add OpenRouter trace/Broadcast observability support
• 29bb947 fix: unify HTTP error handling with template-based error messages
• 5c8e2a4 fix: migrate X-Title to X-OpenRouter-Title and add X-OpenRouter-Categories header