Sampling binary profiles do not record the profiling mode

Bug report

Bug description:

The sampling binary header does not record --mode. Replay and differential flamegraphs therefore cannot describe or validate how the baseline was collected.

python -m profiling.sampling run --mode cpu --binary -o baseline.bin demo.py
python -m profiling.sampling replay --flamegraph -o replay.html baseline.bin
python -m profiling.sampling run --mode wall --diff-flamegraph baseline.bin -o diff.html demo.py

The replay has no CPU-mode metadata, and the differential run silently compares a CPU baseline with a wall-time profile. These measurements are not comparable.

CPython versions tested on:

3.16

Operating systems tested on:

Linux

Linked PRs

• gh-154105

Comienza con los comandos profiling.sampling run y replay del informe, usando los ejemplos de CPU y wall-time para reproducir los metadatos faltantes y la comparación no coincidente. Lee el manejo de la cabecera del perfil binario y los puntos de entrada de replay y differential flamegraph. Se considera terminado cuando el modo de profiling se conserva en el binario y está disponible para replay o differential validation.