Fix document retention and helper retry regressions

Keep failed cursor trials and native recapture anchored to the original document, and restore the requested cached root before LRU eviction. Base braille retry resets on established connection time rather than stalled startup. Poll private AT-SPI daemon ownership without triggering service activation and clean up partial startup failures. Add focused regressions and update browser testing notes.

internal/version/version.go

@@ -22,7 +22,7 @@ import "strings"
 const Name = "Cthulhu"
 
 const Version = "2026.11.03"
-const Channel = "testing"
+const Channel = "hunter"
 
 var Build = Version