## Why
Network domain rules need explicit wildcard semantics independent of filesystem glob syntax, including matching Unicode hosts with `?`.
## What changed
Replace `globset` in network allowlist and denylist matching with a domain matcher. Make `?` consume one Unicode scalar value, retain ASCII case-insensitive matching and existing host normalization, and preserve the distinction between `*.example.com` and `**.example.com`.
Reject empty patterns, repeated wildcards outside the supported `**.` prefix, character classes, brace expansions, escapes, slashes, and embedded whitespace when loading policies. Continue allowing global wildcards only in allowlists.
## Testing
Add coverage for Unicode wildcard semantics, unsupported syntax, IPv6 normalization, invalid entries in either policy list, and adversarial matching inputs. Compare the matcher against an independent dynamic-programming implementation over exhaustive short inputs.
GitOrigin-RevId: 64f65fcda1a50998d70e046445d22cd2d2dcf27a