v4.1.0

• fix: skip empty Cookie header when no cookie parameters are present (#454)
• fix: revert TypeProviders SDK to avoid InvalidProgramException in generated property setters
• fix: avoid duplicate quotation variables in generated parameter coercion expressions (#452)
• fix: restore unchecked field access in generated property getters/setters (#452)
• perf: reduce allocations and reflection in generated operation code (#455)
• perf: avoid redundant allOf emptiness checks and Array.IndexOf in CallAsync (#445)
• perf: avoid obj[] allocation in getPropertyNamesAndInfos (#444)
• perf: add float32/double/Guid fast-paths in toParam; replace String.Format with interpolation (#443)
• perf: replace formatObject array allocation and join with StringBuilder (#440)
• refactor: extract compileSingleRefOrNewObject helper for single-$ref schema collapse (#452)
• refactor: extract tryResolveSingle helper in DefinitionCompiler (#441)
• refactor: replace remaining sprintf in DefinitionCompiler with string interpolation (#439)
• eng: update dependencies and GitHub Actions workflows
• eng: change repo-assist schedule from daily to weekly
• test: add OperationCompiler response-type tests for component $ref, arrays, async streams, and non-200 2xx responses (+8 tests) (#450, #453)
• test: add request/response/path-level parameter coverage for text/plain, octet-stream, and inherited path parameters (+9 tests) (#452)
• test: expand enum, inheritance, composite schema, HTTP method, and runtime helper coverage (+51 tests) (#442, #444, #446, #447, #449)