OpenHands/software-agent-sdk: v1.51.0

What's Changed

• fix(llm): resolve prompt_cache_key via real provider for proxied models by @juanmichelini in https://github.com/OpenHands/software-agent-sdk/pull/5332
• feat(llm): make OpenRouter a verified provider by @juanmichelini in https://github.com/OpenHands/software-agent-sdk/pull/5274
• fix(ci): behavior test runs post "Behavior Tests Results" comment title by @juanmichelini in https://github.com/OpenHands/software-agent-sdk/pull/4945
• fix(ci): surface version-bump-prs failures instead of always reporting success by @juanmichelini in https://github.com/OpenHands/software-agent-sdk/pull/5415
• fix(settings): deprecate ACPAgentSettings.llm so ACP agents keep their metrics LLM by @simonrosenberg in https://github.com/OpenHands/software-agent-sdk/pull/5434
• fix(agent-server): resolve provider connection in /switch_llm by @juanmichelini in https://github.com/OpenHands/software-agent-sdk/pull/5417
• fix(router): send system+user classifier messages for direct-routing by @juanmichelini in https://github.com/OpenHands/software-agent-sdk/pull/5412
• chore(deps): bump @typescript-eslint/parser from 8.70.0 to 8.70.1 in /clients/typescript by @dependabot[bot] in https://github.com/OpenHands/software-agent-sdk/pull/5425
• chore(deps): bump @typescript-eslint/eslint-plugin from 8.70.0 to 8.70.1 in /clients/typescript by @dependabot[bot] in https://github.com/OpenHands/software-agent-sdk/pull/5428
• chore(deps): bump pydantic from 2.12.5 to 2.13.5 by @dependabot[bot] in https://github.com/OpenHands/software-agent-sdk/pull/5419
• Fix find_dotenv assertion error in local conversation by @xingyaoww in https://github.com/OpenHands/software-agent-sdk/pull/1326
• feat(agent-profiles): tools is the only tool control, selected from one server catalog by @simonrosenberg in https://github.com/OpenHands/software-agent-sdk/pull/5151
• feat(agent-profiles): let a profile replace the agent's persona by @simonrosenberg in https://github.com/OpenHands/software-agent-sdk/pull/5449
• refactor(sdk): let loaded tools supply their system-prompt guidance (browser) by @simonrosenberg in https://github.com/OpenHands/software-agent-sdk/pull/5450
• test(stress): leave a run slot for the reference conversation by @simonrosenberg in https://github.com/OpenHands/software-agent-sdk/pull/5397
• fix(agent-profiles): keep delegated sub-agents within the profile's tools and MCP servers by @simonrosenberg in https://github.com/OpenHands/software-agent-sdk/pull/5358
• feat(agent-profiles): launch every agent through resolve and finalize by @simonrosenberg in https://github.com/OpenHands/software-agent-sdk/pull/5406
• Release v1.51.0 by @all-hands-bot in https://github.com/OpenHands/software-agent-sdk/pull/5470

Full Changelog: https://github.com/OpenHands/software-agent-sdk/compare/v1.50.1...v1.51.0