Implement clients for recording history

- [ ] File History
  - [ ] Windows
  - [ ] Mac
    - [x] Emacs: [okada-takuya/emacs-file-reference-recorder](https://github.com/okada-takuya/emacs-file-reference-recorder)
    - [ ] Other applications
- [ ] Web History
  - [x] Firefox: [okada-takuya/TimeRecorder](https://github.com/okada-takuya/TimeRecorder)
  - [ ] Safari
  - [ ] Chrome
