refactor(statusline): improve status line display and robustly handle configuration checks for budgeting

[ilypopv]

Summary

Improve robustness of budget configuration handling in the statusline. Better fallback logic for profile resolution and clearer budget display formatting.

Changes

• Added empty array check in matchBudgetRow to prevent unnecessary lookups
• Enhanced config fallback: profile values now fall back to global config if profile is missing
• Simplified validation to check only critical parameters (codeMieUrl, baseUrl)
• Added "Total:" prefix to budget display for clarity

Checklist

• Self-reviewed
• Manual testing performed
• Documentation updated (if needed)
• No breaking changes