Implement passive consent evidence workflow with extension-driven capture

src/popup/popup.css

@@ -123,6 +123,42 @@ h1 {
   display: none;
 }
 
+.pre-consent-capture {
+  display: grid;
+  gap: 8px;
+  margin-bottom: 14px;
+  padding: 10px;
+  border: 1px solid #6366f1;
+  border-radius: 6px;
+  background: #172033;
+}
+
+.pre-consent-capture[hidden] {
+  display: none;
+}
+
+.pre-consent-capture h2 {
+  margin: 0;
+  font-size: 13px;
+}
+
+.pre-consent-capture p {
+  margin: 0;
+  font-size: 12px;
+  line-height: 1.35;
+  color: #cbd5e1;
+}
+
+.pre-consent-actions {
+  display: grid;
+  grid-template-columns: 1fr 1fr;
+  gap: 8px;
+}
+
+.pre-consent-actions button[hidden] {
+  display: none;
+}
+
 .evidence-counts {
   display: grid;
   gap: 6px;