fix(server): preserve response and streaming contracts

[lightsofapollo]

Summary

• apply configured JSON/YAML schema overlays consistently in server CLI discovery and generation
• preserve declared response references, bodyless statuses, JSON media types, SSE statuses, and wildcard/default runtime statuses
• reject unsupported-only response media and normalized Rust tag identifier collisions with actionable diagnostics
• add every-PR official Anthropic Python SDK coverage alongside the existing official OpenAI SDK gate
• prepare the source-breaking generated API correction as version 0.10.0

Why

Server generation previously produced code that compiled but could return the wrong HTTP status or content type, lose reusable response semantics, and miss SSE declared through a configured overlay. The Anthropic example also lacked an official-client PR contract test.

Impact

Regenerating server code may require implementation changes: bodyless and SSE variants now reflect their declared statuses, and wildcard/default variants accept a runtime status. This pre-1.0 source-breaking correction is documented in the 0.10.0 changelog.

Validation

• cargo test -p openapi-to-rust --all-features
• cargo clippy -p openapi-to-rust --all-features -- -D warnings
• cargo check -p openapi-to-rust --all-features --locked
• cargo fmt --all -- --check
• generated OpenAI and Anthropic server example tests
• official OpenAI 2.45.0 and Anthropic 0.120.0 Python SDK unary/SSE smoke tests
• focused overlay, response semantics, tag collision, and CLI workflow tests

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Project	Deployment	Actions	Updated (UTC)
openapi-to-rust	Ready	Preview, Comment	Jul 26, 2026 10:55pm