fix(ui): filter IPv6 Lighthouse context values

ui/lib/lighthouse/context/contributions.test.ts

@@ -156,6 +156,7 @@ describe("Lighthouse page contributions", () => {
           query: "MATCH (n) RETURN n",
           ownerEmail: "security@example.com",
           sourceIp: "10.0.0.1",
+          sourceIpv6: "2001:db8::1",
           authHeader: "Bearer sensitive-value",
         },
         nodeCount: 12,

ui/lib/lighthouse/context/pages.test.ts

@@ -131,13 +131,18 @@ describe("buildLighthousePageContext", () => {
     const searchParams = new URLSearchParams();
     searchParams.append("filter[search]", "security@example.com");
     searchParams.append("filter[search]", "10.0.0.1");
+    searchParams.append("filter[search]", "2001:db8::1");
     searchParams.append("filter[search]", "Bearer sensitive-value");
+    searchParams.append("filter[search]", "arn:aws:s3:::example");
+    searchParams.append("filter[search]", "12:30:00");
     searchParams.append("filter[search]", "public bucket");
 
     // When
     const context = buildLighthousePageContext("/findings", searchParams);
 
     // Then
-    expect(context.filters).toEqual({ search: ["public bucket"] });
+    expect(context.filters).toEqual({
+      search: ["arn:aws:s3:::example", "12:30:00", "public bucket"],
+    });
   });
 });

ui/lib/lighthouse/context/pages.ts

@@ -342,12 +342,33 @@ export function containsSensitiveLighthouseContextValue(
   return (
     /\b[^\s@]+@[^\s@]+\.[^\s@]+\b/.test(value) ||
     /\b(?:\d{1,3}\.){3}\d{1,3}\b/.test(value) ||
+    containsIpv6Address(value) ||
     /\bAKIA[A-Z0-9]{16}\b/.test(value) ||
     /\bbearer\s+\S+/i.test(value) ||
     /\b(?:password|secret|token|credential)\s*[:=]/i.test(value)
   );
 }
 
+function containsIpv6Address(value: string): boolean {
+  return value
+    .split(/[^0-9A-Fa-f:]+/)
+    .some((candidate) => isIpv6AddressCandidate(candidate));
+}
+
+function isIpv6AddressCandidate(candidate: string): boolean {
+  if (!candidate.includes(":") || candidate.includes(":::")) return false;
+
+  const compressedParts = candidate.split("::");
+  if (compressedParts.length > 2) return false;
+
+  const segments = candidate.split(":").filter(Boolean);
+  if (segments.some((segment) => segment.length > 4)) return false;
+
+  return compressedParts.length === 2
+    ? segments.length < 8
+    : segments.length === 8;
+}
+
 function toTitleCase(value: string): string {
   if (!value) return "Current page";
   return value