ResourceMonitor.init ran `su -c id` at every ChatActivity launch to see
if root was available, then used root to read /sys/class/kgsl/... and
/sys/bus/platform/devices/soc:qcom,msm-cdsp-rm/... for GPU/NPU usage %.
That probe was the only thing still triggering the Magisk auth dialog
on each app start after the no-root LLM migration.
Remove the root probe and the execRoot helper. GPU/NPU reads now return
-1 (UI already renders "—" for negative values). The non-root
/sys/class/kgsl/kgsl-3d0/gpubusy path is kept as a best-effort — it's
world-readable on some devices, silently fails otherwise. CPU and RAM
readouts are unaffected (never needed root).
Dead-code `su -c ...` calls remain in Qwen3TtsEngine (hexStartRunner,
hexStartCpRunner, hexStopRunner, etc.) and WhisperNpuSttEngine, but all
are gated behind fallback paths that don't execute under the current
PTE-only config (talkerPteModule != null && cpPteModule != null short-
circuits before any su call). Left in place to avoid churning the TTS
Hexagon fallback; can be purged in a later cleanup pass if needed.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
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