⚡ Bolt: [performance improvement] avoid deep cloning Serde Value ASTs

[cloudesize67-cmd]

💡 What:

Replaced calls to serde_yaml::from_value(val.clone()) and serde_json::from_value(val.clone()) with T::deserialize(val) in xdk-openapi/src/parser.rs. Brought serde::Deserialize into scope.

🎯 Why:

The original code performed a deep clone of the entire serde_json::Value or serde_yaml::Value AST subtree just to deserialize it into components (schemas, parameters, responses, etc.). This allocated unnecessary memory and traversed the tree redundantly. Because &Value implements the Deserializer trait, we can deserialize directly from the reference.

📊 Impact:

Eliminates deep tree cloning of the JSON/YAML AST for every OpenAPI component parsed. This reduces memory allocation and CPU cycles during the parsing phase, resulting in faster SDK generation times, especially for massive OpenAPI specifications.

🔬 Measurement:

Run make check and make test-generator to ensure all functionality is correctly preserved without regressions. The performance improvement can be measured by profiling the memory allocations during the parser phase with large OpenAPI specs.

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PR created automatically by Jules for task 9634661704593602609 started by @cloudesize67-cmd

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