- Side Panel: number input next to Auto button (1-50)
- Background: autoRunLoop wraps full flow in a for-loop
- Each run: reset state (keep VPS/mail settings) → steps 1-9
- Pause for email on each run, resume continues
- Stop on error
- Side Panel shows run progress: "Running (2/5)", "Paused (3/5)"
- AUTO_RUN_RESET message resets UI between runs
- Default mail provider changed to 163
- 163 mail: faster polling (500ms intervals), skip child iframe ready signals
- Click "收件箱" in left sidebar on load to ensure inbox view
- Refresh uses toolbar "刷新" button (nui-btn-text) or sidebar "收信" button
- Selectors match actual 163 mail DOM structure
- VPS URL: now an input field in Side Panel, no longer hardcoded
- Dynamic script injection via chrome.scripting.executeScript
- host_permissions changed to <all_urls> for flexibility
- 163 Mail: new content script (mail-163.js) with actual selectors
- Mail items: div[sign="letter"], sender: .nui-user, subject: span.da0
- Supports aria-label fallback for matching
- Mail provider selector: dropdown to switch between QQ Mail and 163 Mail
- Background routes steps 4/7 to correct mail content script
- Settings persist in chrome.storage.session
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