docs(ci): translate README and comments to English, use ngpus for NVIDIA scheduler

- Rewrite README.md entirely in English; add Cambricon to platform
  table and directory tree.
- Translate all inline comments in config.yaml to English.
- Replace `gpu_ids: "0"` with `ngpus: 1` for NVIDIA platform so the
  scheduler auto-picks a free GPU rather than pinning to device 0.
- Add `ngpus` support to `parse_gpu_requirement` in ci_resource.py so
  scheduler correctly counts NVIDIA GPU demand.
- Replace deprecated `gpu_count` fallback with `ngpus` in run.py
  `build_docker_args`.

Co-Authored-By: Claude <noreply@anthropic.com>

Author: zhangyue207