feat: add profiled DualSense PCM haptics experiment

tests/test_haptics_experiment_native.py

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+import shutil
+import subprocess
+import zlib
+from pathlib import Path
+
+import pytest
+
+
+@pytest.mark.parametrize("ram", [0, 1], ids=["flash", "sram"])
+def test_haptics_experiment_native(tmp_path: Path, ram: int) -> None:
+    root = Path(__file__).resolve().parents[1]
+    compiler = shutil.which("c++") or shutil.which("g++")
+    assert compiler is not None, "a host C++ compiler is required"
+    executable = tmp_path / "haptics_experiment_test"
+    corpus = tmp_path / "native_reports.bin"
+    subprocess.run(
+        [
+            compiler,
+            "-std=c++17",
+            "-O2",
+            "-Wall",
+            "-Wextra",
+            "-Werror",
+            "-pedantic",
+            "-DSWITCH_PICO_HAPTICS_EXPERIMENT=1",
+            f"-DSWITCH_PICO_HAPTICS_EXPERIMENT_RAM={ram}",
+            f"-I{root / 'tests' / 'haptics_experiment_native_stubs'}",
+            f"-I{root / 'src' / 'firmware'}",
+            str(root / "tests" / "haptics_experiment_test.cpp"),
+            str(root / "src" / "firmware" / "input" / "haptics_experiment.cpp"),
+            "-o",
+            str(executable),
+        ],
+        check=True,
+        cwd=root,
+    )
+    subprocess.run([str(executable), str(corpus)], check=True, cwd=root)
+    reports = corpus.read_bytes()
+    assert len(reports) == 288 * 143
+    # Independent standard-library CRC across real module-generated packets:
+    # A2 is covered once, CRC itself excluded, and stored little-endian.
+    for offset in range(0, len(reports), 143):
+        report = reports[offset : offset + 143]
+        assert int.from_bytes(report[-4:], "little") == zlib.crc32(report[:-4])