feat: improve config command output

[rmanibus]

Closes #128

Summary

• replace the flat profile, auth, and store list/show output with structured go-pretty tables
• add restrained color-coded health indicators, derived status checks, and grouped inspection sections for resolved references and credential refs
• update CLI tests to cover the new presentation and verify the affected config commands still behave correctly

Testing

• go test ./cmd/cloudstic -run 'TestRun(Auth|Store|Profile)|TestPrintKeySlots'

[codecov]

Codecov Report

❌ Patch coverage is 82.65896% with 60 lines in your changes missing coverage. Please review.

Files with missing lines	Patch %	Lines
cmd/cloudstic/config_tables.go	82.24%	38 Missing and 22 partials ⚠️

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