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* feat: replace cidranger with bart improving performance by 3-20x Signed-off-by: Jason Cameron <git@jasoncameron.dev> * perf: replace cidranger with bart for IP range checking - Replace cidranger.Ranger with bart.Lite in RemoteAddrChecker - Use netip.ParsePrefix instead of net.ParseCIDR for modern IP handling - Improve performance: 3-20x faster lookups with zero heap allocations - Update imports to use github.com/gaissmai/bart and net/netip - Remove cidranger dependency from go.mod Benchmark results: - IPv4 lookups: 4x faster (15.58ns vs 63.25ns, 0 vs 2 allocs) - IPv6 lookups: 3x faster (26.51ns vs 76.96ns, 0 vs 2 allocs) - Insertions: 20x faster (976ns vs 19,191ns) - Large tables: 14x faster (5.2ns vs 74.85ns) * docs: clarify CHANGELOG to not give false impressions Signed-off-by: Jason Cameron <git@jasoncameron.dev> * perf: optimize string concatenation in RemoteAddrChecker hash generation Replace fmt.Fprintln with strings.Join for 7x faster performance: - Before: 935.1 ns/op, 784 B/op, 22 allocs/op - After: 133.2 ns/op, 192 B/op, 1 alloc/op The hash is used for JWT cookie validation and error code generation. Comma separation provides the same deterministic uniqueness as newlines but with significantly better performance during policy initialization. * chore: remove accidentally commited string benchmark Signed-off-by: Jason Cameron <git@jasoncameron.dev> * style: apply Copilot suggestions Signed-off-by: Jason Cameron <git@jasoncameron.dev> * fix: reference the right var name i cannot write a merge commit Signed-off-by: Jason Cameron <git@jasoncameron.dev> --------- Signed-off-by: Jason Cameron <git@jasoncameron.dev>