Refactor search modes and optimize embedding generation

- Updated the dashboard template to hide the Code Graph Explorer feature.
- Enhanced the `executeCodexLens` function to use `exec` for better cross-platform compatibility and improved command execution.
- Changed the default `maxResults` and `limit` parameters in the smart search tool to 10 for better performance.
- Introduced a new `priority` search mode in the smart search tool, replacing the previous `parallel` mode, which now follows a fallback strategy: hybrid -> exact -> ripgrep.
- Optimized the embedding generation process in the embedding manager by batching operations and using a cached embedder instance to reduce model loading overhead.
- Implemented a thread-safe singleton pattern for the embedder to improve performance across multiple searches.

ccw/src/templates/dashboard-css/30-core-memory.css

@@ -224,6 +224,13 @@
   border-radius: 8px;
   padding: 1.25rem;
   transition: all 0.2s ease;
+  cursor: pointer;
+  /* Fixed card dimensions */
+  display: flex;
+  flex-direction: column;
+  height: 280px;
+  min-height: 280px;
+  max-height: 280px;
 }
 
 .memory-card:hover {
@@ -239,8 +246,9 @@
 .memory-card-header {
   display: flex;
   justify-content: space-between;
-  align-items: flex-start;
-  margin-bottom: 1rem;
+  align-items: center;
+  margin-bottom: 0.75rem;
+  flex-shrink: 0;
 }
 
 .memory-id {
@@ -248,7 +256,8 @@
   align-items: center;
   gap: 0.5rem;
   font-size: 0.875rem;
-  color: hsl(var(--muted-foreground));
+  color: hsl(var(--foreground));
+  font-weight: 600;
   flex-wrap: wrap;
 }
 
@@ -257,6 +266,10 @@
   height: 16px;
 }
 
+.memory-id i[data-lucide="star"] {
+  color: hsl(38 92% 50%);
+}
+
 .memory-actions {
   display: flex;
   gap: 0.5rem;
@@ -282,34 +295,83 @@
   color: hsl(var(--destructive));
 }
 
+.icon-btn.favorite-active {
+  color: hsl(38 92% 50%);
+}
+
+.icon-btn.favorite-active:hover {
+  color: hsl(38 92% 40%);
+}
+
 .icon-btn i {
   width: 18px;
   height: 18px;
 }
 
+/* Copy ID Button */
+.copy-id-btn {
+  background: none;
+  border: none;
+  padding: 0.125rem 0.25rem;
+  cursor: pointer;
+  color: hsl(var(--muted-foreground));
+  transition: color 0.2s;
+  display: inline-flex;
+  align-items: center;
+  justify-content: center;
+  margin-left: 0.25rem;
+  border-radius: 4px;
+}
+
+.copy-id-btn:hover {
+  color: hsl(var(--primary));
+  background: hsl(var(--muted));
+}
+
+.copy-id-btn i {
+  width: 14px;
+  height: 14px;
+}
+
+.copy-id-btn.copied {
+  color: hsl(var(--success, 142 76% 36%));
+}
+
 /* Memory Content */
 .memory-content {
-  margin-bottom: 1rem;
-}
-
-.memory-summary {
-  font-size: 0.9375rem;
-  line-height: 1.6;
-  color: hsl(var(--foreground));
+  flex: 1;
+  min-height: 0;
+  overflow: hidden;
+  margin-bottom: 0.75rem;
 }
 
+.memory-summary,
 .memory-preview {
   font-size: 0.875rem;
   line-height: 1.5;
   color: hsl(var(--muted-foreground));
+  /* Fixed height with ellipsis */
+  display: -webkit-box;
+  -webkit-line-clamp: 4;
+  -webkit-box-orient: vertical;
+  overflow: hidden;
+  text-overflow: ellipsis;
+  max-height: 6em;
+}
+
+.memory-summary {
+  color: hsl(var(--foreground));
 }
 
 /* Memory Tags */
 .memory-tags {
   display: flex;
   flex-wrap: wrap;
-  gap: 0.5rem;
-  margin-bottom: 1rem;
+  gap: 0.375rem;
+  margin-bottom: 0.5rem;
+  flex-shrink: 0;
+  max-height: 2rem;
+  overflow: hidden;
 }
 
 .tag {
@@ -321,13 +383,14 @@
   font-weight: 500;
 }
 
-/* Memory Footer */
+/* Memory Footer - Fixed at bottom */
 .memory-footer {
   display: flex;
   flex-direction: column;
-  gap: 0.75rem;
-  padding-top: 1rem;
+  gap: 0.5rem;
+  padding-top: 0.75rem;
   border-top: 1px solid hsl(var(--border));
+  margin-top: auto;
 }
 
 .memory-meta {
@@ -850,6 +913,89 @@
   margin: 0;
 }
 
+/* Relations Detail Styles */
+.relations-detail h4 {
+  font-size: 1rem;
+  font-weight: 600;
+  margin-bottom: 1rem;
+  color: hsl(var(--foreground));
+}
+
+.clusters-list {
+  display: flex;
+  flex-direction: column;
+  gap: 1rem;
+}
+
+.relation-cluster-item {
+  padding: 1rem;
+  background: hsl(var(--muted) / 0.3);
+  border: 1px solid hsl(var(--border));
+  border-radius: 8px;
+}
+
+.relation-cluster-header {
+  display: flex;
+  align-items: center;
+  gap: 0.5rem;
+  margin-bottom: 0.75rem;
+}
+
+.relation-cluster-header i {
+  width: 18px;
+  height: 18px;
+  color: hsl(var(--primary));
+}
+
+.relation-cluster-header .cluster-name {
+  font-weight: 600;
+  color: hsl(var(--foreground));
+}
+
+.cluster-relations-list {
+  display: flex;
+  flex-wrap: wrap;
+  align-items: center;
+  gap: 0.5rem;
+  padding-top: 0.75rem;
+  border-top: 1px solid hsl(var(--border));
+}
+
+.relations-label {
+  font-size: 0.8125rem;
+  color: hsl(var(--muted-foreground));
+}
+
+.relation-tag {
+  display: inline-flex;
+  align-items: center;
+  gap: 0.375rem;
+  padding: 0.25rem 0.625rem;
+  background: hsl(var(--accent));
+  border-radius: 4px;
+  font-size: 0.8125rem;
+}
+
+.relation-tag i {
+  width: 12px;
+  height: 12px;
+  color: hsl(var(--muted-foreground));
+}
+
+.relation-tag .relation-type {
+  font-size: 0.6875rem;
+  padding: 0.125rem 0.375rem;
+  background: hsl(var(--primary) / 0.15);
+  color: hsl(var(--primary));
+  border-radius: 3px;
+  margin-left: 0.25rem;
+}
+
+.text-muted {
+  color: hsl(var(--muted-foreground));
+  font-size: 0.875rem;
+}
+
 /* Dark Mode Adjustments */
 [data-theme="dark"] .memory-card {
   background: #1e293b;