v1.3 — New features
- Added scope filter to limit replacements to target segments only (tgt_segment_* fields) or all editable fields on the page.

• Added replace history (last 10 find/replace pairs, persisted across reloads) accessible via the 🕐 button next to the Find field.
• Added undo — a single-level undo button appears after any replacement and reverts all affected fields.
• Added optional live preview — when enabled, matching fields are highlighted in amber as you type, updated in real time.
• A MutationObserver ensures newly loaded segments (dynamic scroll/pagination) are included in live preview without needing to re-run Find.
• In step-through mode, the progress indicator now shows the segment number (e.g. Seg #29 · Match 3 of 5).
• All options (case sensitivity, whole word, regex, live preview, scope) are persisted across page reloads via localStorage.

v1.2 — New features
Added step-through mode: use Find next → to walk through each match one at a time, with visual confirmation before replacing. Navigate with Prev/Skip, replace individually or all remaining matches at once. The panel is also now draggable — grab the title bar to move it anywhere on screen so it doesn't obstruct the text you're working on.