v1.2.1 — Network-style JSON string preview

Highlights

• Parsed JSON tree: long string leaves abbreviated like Chrome Network (size + Show more/less + Copy)
• Applies to Request Payload Parsed view and Events drawer JSON tree
• en/zh i18n; unit tests for truncate/size helpers
• Capture preview cap remains 256KB

Links

• Closes #26
• Feature PR: #27
• Release PR: #28

Notes

• Chrome Web Store does not update from GitHub Releases automatically; upload this zip in the Developer Dashboard so the store listing shows this version.