Integrate backend APIs and move review to center editor tab

styles.css

@@ -318,6 +318,9 @@ textarea {
 .md-toggle {
   position: static;
   z-index: 0;
+  display: inline-flex;
+  align-items: center;
+  justify-content: center;
   width: var(--top-control-btn-h);
   min-width: var(--top-control-btn-h);
   height: var(--top-control-btn-h);
@@ -327,6 +330,7 @@ textarea {
   line-height: 1;
   background: #163057;
   flex-shrink: 0;
+  text-align: center;
 }
 
 .md-toggle.active {
@@ -409,6 +413,21 @@ textarea {
   color: #81b9ff;
 }
 
+.md-preview .mermaid {
+  margin: 10px 0;
+  padding: 8px;
+  border: 1px solid var(--line);
+  border-radius: 6px;
+  background: #081427;
+  overflow: auto;
+}
+
+.md-preview .mermaid-error {
+  color: #ffd7d7;
+  font-family: "IBM Plex Mono", "Consolas", monospace;
+  white-space: pre-wrap;
+}
+
 .editor-footer {
   margin-top: 8px;
   border: 1px solid var(--line);
@@ -432,12 +451,55 @@ textarea {
   white-space: nowrap;
 }
 
+.rag-status {
+  display: inline-flex;
+  align-items: center;
+  gap: 6px;
+  color: var(--muted);
+  font-size: 12px;
+  flex-shrink: 0;
+  white-space: nowrap;
+}
+
+.rag-dot {
+  width: 10px;
+  height: 10px;
+  border-radius: 999px;
+  border: 1px solid #315685;
+  box-shadow: 0 0 0 1px #0f2343 inset;
+}
+
+.rag-red {
+  background: #cf4b57;
+}
+
+.rag-yellow {
+  background: #d7b84d;
+}
+
+.rag-green {
+  background: #49c47c;
+}
+
 .editor-actions {
   display: flex;
   gap: 8px;
   flex-shrink: 0;
 }
 
+.tree-footer {
+  display: grid;
+  grid-template-rows: 1fr 1fr;
+  align-items: center;
+  justify-items: start;
+  row-gap: 0;
+}
+
+.tree-footer-line {
+  width: 100%;
+  min-width: 0;
+}
+
 .chat-wrap,
 .review-wrap {
   display: flex;
@@ -451,7 +513,12 @@ textarea {
 
 .review-wrap {
   flex: 1;
-  margin-top: 8px;
+  margin-top: 0;
+}
+
+.editor-review {
+  flex: 1;
+  min-height: 0;
 }
 
 .chat-log,
@@ -466,6 +533,9 @@ textarea {
   flex: 1;
   min-height: 0;
   overflow: auto;
+  display: flex;
+  flex-direction: column;
+  justify-content: flex-end;
 }
 
 .chat-entry {
@@ -475,6 +545,12 @@ textarea {
   white-space: pre-wrap;
 }
 
+.chat-entry:last-child {
+  margin-bottom: 0;
+  padding-bottom: 0;
+  border-bottom: none;
+}
+
 .chat-form {
   margin-top: 8px;
   display: grid;
@@ -521,6 +597,7 @@ textarea {
 .diff-view {
   overflow: auto;
   min-height: 120px;
+  flex: 1;
 }
 
 .diff-line {
@@ -543,12 +620,81 @@ textarea {
 .tree-item {
   padding: 2px 4px;
   cursor: pointer;
+  user-select: none;
 }
 
 .tree-item:hover {
   background: #133056;
 }
 
+.tree-item-dir {
+  color: var(--muted);
+}
+
+.indexing-modal {
+  position: fixed;
+  inset: 0;
+  z-index: 9999;
+  display: flex;
+  align-items: center;
+  justify-content: center;
+  background: rgba(4, 10, 20, 0.78);
+  backdrop-filter: blur(2px);
+}
+
+.indexing-card {
+  width: min(640px, calc(100vw - 40px));
+  border: 1px solid var(--line);
+  border-radius: 10px;
+  padding: 16px;
+  background: linear-gradient(180deg, #112648 0%, #0c1a33 100%);
+  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.4);
+}
+
+.indexing-card h3 {
+  margin: 0 0 12px;
+  font-size: 18px;
+  color: var(--text);
+}
+
+.indexing-row {
+  display: grid;
+  grid-template-columns: 130px 1fr;
+  gap: 8px;
+  margin-bottom: 8px;
+  min-height: 20px;
+}
+
+.indexing-label {
+  color: var(--muted);
+  font-size: 13px;
+}
+
+.indexing-value {
+  min-width: 0;
+  overflow: hidden;
+  text-overflow: ellipsis;
+  white-space: nowrap;
+  color: var(--text);
+  font-size: 13px;
+}
+
+.indexing-progress {
+  margin-top: 8px;
+  height: 8px;
+  border: 1px solid var(--line);
+  border-radius: 999px;
+  background: #0b1830;
+  overflow: hidden;
+}
+
+.indexing-progress-bar {
+  height: 100%;
+  width: 0%;
+  background: linear-gradient(90deg, #2f5f99 0%, #4fa0ff 100%);
+  transition: width 0.2s ease;
+}
+
 @media (max-width: 1100px) {
   .layout {
     grid-template-columns: 1fr;