Нумерация, отметка прочитанных/пропущенных комиксов и единый JSON-реестр
Sequential comic numbering, read/missing status tracking, and unified collection registry for DoFantasy comics catalog.
## Features
- **Sequential Issue Numbering:**
- Automatic comic numbering anchored to `#711.
- Built-in compensation for gaps caused by delisted or removed comics.
- Series bundles linking to `/series/` are excluded from the numbering sequence and marked with a clean `SERIES` badge.
- **Interactive Inline Number Correction:**
- Click on any number badge to edit its value directly in place.
- Intelligent cascade shifting: updating any comic's number automatically shifts all subsequent newer releases without manual editing.
- Automatic collision resolution ensures every release retains a natural, strictly sequential order without duplicates.
- **Collection Status Management:**
- Mark missing/unavailable comics with the `?` button (red border).
- Mark read/owned comics with the `✓` button (green border).
- Toggle states back to neutral with a second click.
- **Unified Persistent Registry:**
- Stores all comic data (issue number, title, author, and reading status) permanently in your browser's local userscript storage.
- Export the entire catalog to JSON via the Tampermonkey script menu with a single click.
## Controls
- **Left-Click on Number Badge (`#XXX`):** Open inline number input field.
- `Enter` or click outside: Save changes and apply cascade shift.
- `Escape`: Cancel editing.
- **Left-Click on `?` (Left):** Toggle comic status: "Not available" (red highlight).
- **Left-Click on `✓` (Right):** Toggle comic status: "Watched" (green highlight).
- **Tampermonkey Menu:**
- **Copy JSON registry to clipboard:** Export your saved collection data.
- **Reset all registry:** Clear all saved records and restart fresh.
