DFC 3.33: silent 16-bit output demotion produces inconsistent HEFs (runtime demux errors / stale dequantization params)

Environment - Hailo AI SW Suite 2025-10 (DFC 3.33.0), HailoRT 4.23.0, Hailo-8 (Raspberry Pi 5 + AI HAT) - SSD-style model, 12 output layers (6 scales × cls/loc), all end nodes are plain convs ## Summary When requesting 16-bit outputs, the optimizer applies the request correctly, but the compiler silently demotes some outputs back to 8-bit , and the resulting HEFs are internally inconsistent in two different ways depending on how the request was written. There is no warning at any point; the compile reports success. ## Fact 1: optimize stage is fine With `quantization_param(output_layerN