feat(comparison): highlight -- WARNING SQL lines and drop-create banner (#2872)

[actiontech-bot]

Summary

For the Hive structure compare flow (issue actiontech/sqle-ee#2872):

• ModifiedSqlAuditResult.List: detect -- WARNING: lines in modify SQL and render them with a distinct warning-highlight-line className
• ModifiedSqlDrawer: surface a drop-create warning banner when any modify SQL contains WARNING lines
• warningSql util: shared isWarningLine / sqlHasWarningLine helpers
• bilingual i18n keys (zh-CN / en-US) for the new banner
• jest tests for the ModifiedSqlDrawer WARNING render path

Fixes #2872 (actiontech/sqle-ee)
Refs design.md §3.5 (UI-1/UI-2/UI-3, compat-RISK-6)

[github-actions]

Coverage report

St.❔	Category	Percentage	Covered / Total
🟢	Statements	80.97%	29500/36435
🟡	Branches	63.27%	11057/17476
🟢	Functions	84.44%	9946/11779
🟢	Lines	84.95%	28186/33180

Test suite run success

3747 tests passing in 816 suites.

Report generated by 🧪jest coverage report action from 3870a84