feat: Implement SigSocket request queuing and approval system, Enhance Settings UI

crypto_vault_extension/styles/popup.css

@@ -188,6 +188,15 @@ body {
   margin: 0;
 }
 
+.clickable-header {
+  cursor: pointer;
+  transition: opacity 0.2s ease;
+}
+
+.clickable-header:hover {
+  opacity: 0.8;
+}
+
 .header-actions {
   display: flex;
   align-items: center;
@@ -261,6 +270,75 @@ body {
   color: var(--text-muted);
 }
 
+.server-input-group {
+  display: flex;
+  align-items: center;
+  gap: var(--spacing-sm);
+}
+
+.server-input-group input {
+  flex: 1;
+  padding: var(--spacing-xs) var(--spacing-sm);
+  font-size: 14px;
+  border: 1px solid var(--border-color);
+  border-radius: 8px;
+  background: var(--bg-input);
+  color: var(--text-primary);
+  font-family: 'Monaco', 'Menlo', 'Ubuntu Mono', monospace;
+}
+
+.server-input-group input:focus {
+  outline: none;
+  border-color: var(--border-focus);
+  box-shadow: 0 0 0 2px hsla(var(--primary-hue), var(--primary-saturation), 55%, 0.15);
+}
+
+.settings-help {
+  display: block;
+  font-size: 12px;
+  color: var(--text-muted);
+  margin-top: var(--spacing-xs);
+  font-style: italic;
+}
+
+/* Settings page styles */
+
+.settings-header {
+  display: flex;
+  align-items: center;
+  gap: var(--spacing-md);
+  margin-bottom: var(--spacing-lg);
+}
+
+.settings-header h2 {
+  margin: 0;
+  font-size: 20px;
+  font-weight: 600;
+  color: var(--text-primary);
+}
+
+
+
+.about-info {
+  text-align: left;
+}
+
+.about-info p {
+  margin: 0 0 var(--spacing-xs) 0;
+  font-size: 14px;
+  color: var(--text-primary);
+}
+
+.about-info strong {
+  font-weight: 600;
+}
+
+.version-info {
+  font-size: 12px;
+  color: var(--text-muted);
+  font-style: italic;
+}
+
 .btn-icon-only {
   background: var(--bg-button-ghost);
   border: none;
@@ -456,6 +534,17 @@ input::placeholder, textarea::placeholder {
   font-size: 12px;
 }
 
+/* Button icon spacing */
+.btn svg {
+  margin-right: var(--spacing-xs);
+  flex-shrink: 0;
+}
+
+.btn svg:last-child {
+  margin-right: 0;
+  margin-left: var(--spacing-xs);
+}
+
 .btn:disabled {
   opacity: 0.5;
   cursor: not-allowed;
@@ -1073,18 +1162,19 @@ input::placeholder, textarea::placeholder {
 
 /* SigSocket Requests Styles */
 .sigsocket-section {
-  margin-bottom: 20px;
+  margin-bottom: var(--spacing-lg);
 }
 
 .section-header {
   display: flex;
   justify-content: space-between;
   align-items: center;
-  margin-bottom: 15px;
+  margin-bottom: var(--spacing-lg);
 }
 
 .section-header h3 {
   margin: 0;
+  color: var(--text-primary);
   font-size: 16px;
   font-weight: 600;
 }
@@ -1092,7 +1182,7 @@ input::placeholder, textarea::placeholder {
 .connection-status {
   display: flex;
   align-items: center;
-  gap: 6px;
+  gap: var(--spacing-xs);
   font-size: 12px;
   color: var(--text-secondary);
 }
@@ -1109,16 +1199,62 @@ input::placeholder, textarea::placeholder {
   background: var(--accent-success);
 }
 
+.status-dot.loading {
+  background: var(--accent-warning);
+  animation: pulse-dot 1.5s ease-in-out infinite;
+}
+
+@keyframes pulse-dot {
+  0%, 100% {
+    opacity: 1;
+    transform: scale(1);
+  }
+  50% {
+    opacity: 0.6;
+    transform: scale(1.2);
+  }
+}
+
 .requests-container {
   min-height: 80px;
 }
 
 .empty-state {
   text-align: center;
-  padding: 20px;
+  padding: var(--spacing-xl);
   color: var(--text-secondary);
 }
 
+.loading-state {
+  text-align: center;
+  padding: var(--spacing-xl);
+  color: var(--text-secondary);
+}
+
+.loading-spinner {
+  width: 24px;
+  height: 24px;
+  border: 2px solid var(--border-color);
+  border-top: 2px solid var(--primary-color);
+  border-radius: 50%;
+  animation: spin 1s linear infinite;
+  margin: 0 auto var(--spacing-sm) auto;
+}
+
+@keyframes spin {
+  0% { transform: rotate(0deg); }
+  100% { transform: rotate(360deg); }
+}
+
+.loading-state p {
+  margin: var(--spacing-sm) 0;
+  font-weight: 500;
+}
+
+.loading-state small {
+  opacity: 0.8;
+}
+
 .empty-icon {
   font-size: 24px;
   margin-bottom: 8px;
@@ -1228,10 +1364,42 @@ input::placeholder, textarea::placeholder {
 
 .sigsocket-actions {
   display: flex;
-  gap: 8px;
-  margin-top: 12px;
-  padding-top: 12px;
-  border-top: 1px solid var(--border-color);
+  gap: var(--spacing-sm);
+  margin-top: var(--spacing-md);
+}
+
+/* Ensure refresh button follows design system */
+#refreshRequestsBtn {
+  display: inline-flex;
+  align-items: center;
+  justify-content: center;
+  gap: var(--spacing-xs);
+}
+
+/* Request item locked state styles */
+.request-item.locked {
+  opacity: 0.8;
+  border-left: 3px solid var(--warning-color, #ffa500);
+}
+
+.request-status.pending {
+  background: var(--warning-bg, #fff3cd);
+  color: var(--warning-text, #856404);
+  padding: var(--spacing-xs) var(--spacing-sm);
+  border-radius: 4px;
+  font-size: 12px;
+  margin: var(--spacing-xs) 0;
+  border: 1px solid var(--warning-border, #ffeaa7);
+}
+
+.request-actions.locked button {
+  opacity: 0.6;
+  cursor: not-allowed;
+}
+
+.request-actions.locked button:hover {
+  background: var(--button-bg) !important;
+  transform: none !important;
 }
 
 .workspace-mismatch {