Rename PERCENTAGE to PERCENT in AdjustmentUnit enum and update related comments

[ImMin5]

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Category

• New feature
• Bug fix
• Improvement
• Refactor
• etc

Description

• rename PERCENTAGE to PERCENT in AdjustmentUnit enum and update related comments

Known issue

[Copilot]

Pull Request Overview

This PR refactors the AdjustmentUnit enum by renaming the constant from PERCENTAGE to PERCENT and updates the related comment examples accordingly.

• Renamed enum constant PERCENTAGE to PERCENT.
• Updated JSON comment examples in CreateReportAdjustmentRequest and UpdateReportAdjustmentRequest to reflect the new naming.
• Added clarifying comments regarding currency sync in CreateReportAdjustmentRequest.

Comments suppressed due to low confidence (1)

proto/spaceone/api/cost_analysis/v1/report_adjustment.proto:61

• Renaming the enum constant to PERCENT appears consistent with the updated documentation examples; please ensure that all references across the codebase and documentation fully reflect this change.

PERCENT = 2;