feat: create Workspace Manager

[seqre]

No description provided.

[codecov]

Codecov Report

Attention: Patch coverage is 91.50943% with 9 lines in your changes missing coverage. Please review.

Files with missing lines	Patch %	Lines
cot-cli/src/utils.rs	92.38%	6 Missing and 2 partials ⚠️
cot-cli/src/migration_generator.rs	0.00%	1 Missing ⚠️

Flag	Coverage Δ
rust	78.38% <91.50%> (+0.20%)	⬆️

Flags with carried forward coverage won't be shown. Click here to find out more.

Files with missing lines	Coverage Δ
cot-cli/src/migration_generator.rs	82.64% <0.00%> (ø)
cot-cli/src/utils.rs	91.60% <92.38%> (+30.38%)	⬆️

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[m4tx]

Please fix the minor issues mentioned and I think it's otherwise a very nice change!

[m4tx]

LGTM