⚡ Bolt: [performance improvement] Avoid deep clones during OpenAPI parsing

[cloudesize67-cmd]

💡 What: Replaced serde_yaml::from_value::<Type>(value.clone()) and serde_json::from_value::<Type>(value.clone()) with Type::deserialize(value) across the OpenAPI parsing logic.
🎯 Why: Calling .clone() on an intermediate AST (Value) deeply clones all nodes (strings, maps, arrays) before deserialization, heavily increasing memory allocations for large OpenAPI specs. By using the Deserializer trait implemented on &Value, Serde only extracts and copies the fields specifically required by the target struct.
📊 Impact: Considerably reduces memory allocations and heap usage during OpenAPI schema parsing, improving load time and throughput.
🔬 Measurement: Verify by parsing a large OpenAPI specification using xdk-openapi and observing the reduction in memory allocations (e.g. using a memory profiler like valgrind or standard Rust benchmarking tools). Or simply checking time taken to parse large files.

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PR created automatically by Jules for task 1133430135790827741 started by @cloudesize67-cmd

[google-labs-jules]

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