reset to pre-modification baseline; restart feature work from clean state

Restoring the working tree to the pristine pre-Claude baseline previously
preserved at /data/clearpilot (now /data/clearpilot-baseline). The prior
modified-but-broken tree is snapshotted at /data/openpilot-broken-2026-05-03
and tagged here as pre-reset-2026-05-03 for reference.

From here, features (UI changes, dashcam, telemetry, GPS, display modes,
speed logic, standstill power saving, etc.) will be re-introduced one at
a time with proper testing.

body/board/SConscript

@@ -121,7 +121,6 @@ def objcopy(source, target, env, for_signature):
     return '$OBJCOPY -O binary %s %s' % (source[0], target[0])
 
 # Common autogenerated includes
-os.makedirs("obj", exist_ok=True)
 git_ver = get_version(BUILDER, BUILD_TYPE)
 with open("obj/gitversion.h", "w") as f:
   f.write(f'const uint8_t gitversion[8] = "{git_ver}";\n')