v1.53.0 ✅

• FlowProxy — always-on tracing + debug mode — partial class → generator emits svc.Flow.Process() (always-on) + svc.Flow.Debug.Process() (single-trace DebugProxy); DebugProxy always emitted; saves to reslava-debug-{method}.json; REF004 + code fix (add partial); _Traced removed; both packages
• Debug panel — file-drop workflow + multi-file picker — RingBufferObserver.Save(path?) (auto-prefix reslava-, BOM-free UTF-8); file watcher **/reslava-*.json; source badge (⏳/📄/🌐); multi-file picker strips reslava- prefix; "Live Panel" renamed "Debug panel" throughout; VSIX v1.4.0; 4,938 tests