Studio: Add translations for Playground CLI console messages during site creation

[epeicher]

Related issues

• Fixes STU-981

Proposed Changes

• Updated formatMessageForUI() function to wrap all user-facing console messages with translation calls

Testing Instructions

• Change your system language to a non-English language that Studio supports (e.g., Spanish, French, German, Polish). Please note that most of the strings need to be translated
• Create a new site in Studio
• Observe the loading messages that appear during site creation
• Verify that the console messages are displayed in the selected language instead of English

Pre-merge Checklist

• Have you checked for TypeScript, React or other console errors?

[github-actions]

📊 Performance Test Results

Comparing 04dd593 vs trunk

site-editor

Metric	trunk	04dd593	Diff	Change
load	16161.00 ms	15279.00 ms	-882.00 ms	🟢 -5.5%

site-startup

Metric	trunk	04dd593	Diff	Change
siteCreation	34530.00 ms	29640.00 ms	-4890.00 ms	🟢 -14.2%
siteStartup	11125.00 ms	12137.00 ms	+1012.00 ms	🔴 9.1%

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Results are median values from multiple test runs.

Legend: 🟢 Improvement (faster) | 🔴 Regression (slower) | ⚪ No change

[bcotrim]

LGTM 👍

I couldn't see the translation yet, but I can see the new messages in english

[wojtekn]

@epeicher , would it make sense to add an inline code comment referencing the Playground CLI source to make any future updates to that easier?