strands-agents/harness-sdk python/v1.50.2

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python/v1.50.2

Auto-drafted from commits in python/v1.50.1..python/v1.50.2, grouped by conventional-commit type. Edit on the release page after publish if you want a polished writeup; the canonical release notes live on the website.

🚀 Features

• feat: add context manager class design doc (#3307) (cb3bffb)
• feat(ts): add agent-as-tool delegation (#3265) (a2761fd)
• feat(python): add per-call MCP tool cancellation (#3402) (67693b7)

🐛 Fixes

• fix(context): legacy file storage accepts bare filenames and stems (#3495) (2828e44)
• fix(streaming): consume reasoning signature per content block (#3472) (be30def)
• fix(mcp): deduplicate inverted-index postings (#3417) (0e517d6)
• fix(bidi): gemini live mp to use updated api (#3424) (1531f73)

♻️ Refactoring

• refactor(http_request): remove security features, accept httpx.AsyncClient (#3491) (fa63da5)

📚 Documentation

• docs(mcp): correct search tool contracts (#3456) (50b583f)
• docs(changelog): sync strands-agents/harness-sdk typescript/v1.11.1 (#3481) (8543db5)
• docs(changelog): sync strands-agents/harness-sdk python/v1.50.1 (#3480) (0b727d0)
• docs(changelog): sync strands-agents/evals backfill (#3442) (5bede64)

🔧 Chores

• chore: update context offloader comments to deprecate legacy storage (#3476) (58a501c)
• chore(bidi): bump google-genai floor to >=1.67.0 (#3478) (ec1c0db)