Introduce spare command

[nao1215]

No description provided.

[github-actions]

HOTTEST report

PASS	FAIL	SKIP	TOTAL	DURATION
143	0	4	147	6.878904635s

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Reported by hottest

[github-actions]

Code Metrics Report

	main (227e923)	#13 (a4efbe3)	+/-
Coverage	16.7%	21.1%	+4.4%
Test Execution Time	27s	15s	-12s

Details

  |                     | main (227e923) | #13 (a4efbe3) |  +/-  |
  |---------------------|----------------|---------------|-------|
+ | Coverage            |          16.7% |         21.1% | +4.4% |
  |   Files             |             20 |            26 |    +6 |
  |   Lines             |            604 |           766 |  +162 |
+ |   Covered           |            101 |           162 |   +61 |
+ | Test Execution Time |            27s |           15s |  -12s |

Code coverage of files in pull request scope (20.1% → 26.5%)

Files	Coverage	+/-
app/di/wire_gen.go	0.0%	0.0%
app/domain/model/domain.go	100.0%	+100.0%
app/domain/model/s3.go	72.2%	-8.1%
app/domain/model/s3_policy.go	80.0%	+80.0%
app/external/cloudfront.go	0.0%	0.0%
app/external/s3.go	0.0%	0.0%
app/external/s3_policy.go	0.0%	0.0%
app/interactor/cloudfront.go	0.0%	0.0%
app/interactor/s3.go	0.0%	0.0%
cmd/subcmd/s3hub/rm.go	0.0%	0.0%
config/spare/config.go	87.1%	+87.1%

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Reported by octocov