Auto Mirror Switcher

Switch failed mirror hosts to a working candidate while preserving the page path, query, and hash.

Features: - create mirror rules using host regex patterns; - support for numeric, alphabetic, and custom host lists; - check candidate availability before switching; - detect navigation errors, HTTP errors, and block pages; - cache the last working host; - import and export settings; - diagnostic log for verifying rule operation. Benefits: - saves time when mirrors are unavailable; - preserves the context of the currently open page; - works with flexible custom rules; - stores settings locally in Chrome; - does not use remote code, analytics, or accounts.