Add unit tests and docs for denying tool calls with middleware (#1333)

Add 2.11 version badge for state management (#1289)

Update documentation

Fix typing, add tests for tool call middleware (#1269)

Add docs for context state management (#1227)

Fix middleware list result types (#1125)

Update middleware imports and documentation

Fix middleware tests

Remove production-ready language from middleware docs

Add production-ready middleware examples with comprehensive tests

Update doc icons

Update docs and tests

Minor updates

Update tests