OTel metadata helpers; threads and traces accessors added

What's Changed

• chore: sync langsmith_api by @langtions-bot[bot] in https://github.com/langchain-ai/langsmith-sdk/pull/3152
• release(js): bump JS SDK to 0.7.16 by @sineha-mani in https://github.com/langchain-ai/langsmith-sdk/pull/3160
• feat: expose OTel-safe metadata helpers [closes LSDK-262] by @open-swe[bot] in https://github.com/langchain-ai/langsmith-sdk/pull/3091
• feat(integrations): helpers to build LangSmith run URLs from OTel spans [LSDK-273] by @harisaiharish in https://github.com/langchain-ai/langsmith-sdk/pull/3142
• fix(python): remove projects accessor from AsyncClient by @QuentinBrosse in https://github.com/langchain-ai/langsmith-sdk/pull/3163
• chore: sync langsmith_api by @langtions-bot[bot] in https://github.com/langchain-ai/langsmith-sdk/pull/3162
• feat(js): Extends wrapAnthropic JS wrapper to support Claude Managed Agents methods by @jacoblee93 in https://github.com/langchain-ai/langsmith-sdk/pull/3155
• release(js): 0.7.17 by @jacoblee93 in https://github.com/langchain-ai/langsmith-sdk/pull/3166
• feat(client): expose threads and traces resource accessors on Python and JS clients by @QuentinBrosse in https://github.com/langchain-ai/langsmith-sdk/pull/3164
• ci: freeze pnpm environment test installs by @jkennedyvz in https://github.com/langchain-ai/langsmith-sdk/pull/3168
• Quote sandbox client URL path segments by @langsmith-fleet[bot] in https://github.com/langchain-ai/langsmith-sdk/pull/3167
• release(js): 0.8.0 by @QuentinBrosse in https://github.com/langchain-ai/langsmith-sdk/pull/3171
• release(py): 0.10.0 by @QuentinBrosse in https://github.com/langchain-ai/langsmith-sdk/pull/3170

New Contributors

• @langsmith-fleet[bot] made their first contribution in https://github.com/langchain-ai/langsmith-sdk/pull/3167

Full Changelog: https://github.com/langchain-ai/langsmith-sdk/compare/v0.9.8...v0.10.0