Enhanced ReCClientHelpers.cs with a new utility method:
- Added `BuildQueryFromObject<T>` to serialize objects into query strings.
- Skips `null` properties and escapes names/values for safety.
- Added `System.Collections` and `System.Reflection` namespaces to support reflection and collection operations.
This improves HTTP request handling by enabling dynamic query string generation from object payloads.
TekH
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