fix: copy button works in all browsers with per-message success feedback

Made-with: Cursor

apps/client/src/app/components/ai-chat/ai-chat.component.html

@@ -172,7 +172,7 @@
   @if (activeTab === 'chat') {
     <!-- Messages area -->
     <div #messagesContainer class="ai-messages">
-      @for (msg of messages; track $index) {
+      @for (msg of messages; track $index; let i = $index) {
         <div
           class="ai-message"
           [class.ai-message--assistant]="msg.role === 'assistant'"
@@ -181,6 +181,21 @@
           <!-- Bubble -->
           <div class="ai-bubble" [innerHTML]="msg.content | aiMarkdown"></div>
 
+          <!-- Copy button for assistant messages -->
+          @if (msg.role === 'assistant') {
+            <button
+              class="ai-copy-btn"
+              (click)="copyToClipboard(msg.content, i)"
+              [title]="copySuccessMap[i] ? 'Copied!' : 'Copy response'"
+            >
+              @if (!copySuccessMap[i]) {
+                <span>⎘ Copy</span>
+              } @else {
+                <span>✓ Copied!</span>
+              }
+            </button>
+          }
+
           <!-- Real estate comparison card -->
           @if (msg.comparisonCard) {
             <gf-real-estate-card [card]="msg.comparisonCard" />

apps/client/src/app/components/ai-chat/ai-chat.component.scss

@@ -446,6 +446,33 @@
   }
 }
 
+.ai-copy-btn {
+  margin-top: 0.25rem;
+  padding: 0.2rem 0.5rem;
+  font-size: 0.7rem;
+  font-weight: 500;
+  background: rgba(99, 102, 241, 0.1);
+  color: #6366f1;
+  border: 1px solid rgba(99, 102, 241, 0.25);
+  border-radius: 0.4rem;
+  cursor: pointer;
+  transition: background 0.15s ease;
+
+  &:hover {
+    background: rgba(99, 102, 241, 0.2);
+  }
+
+  :host-context(.theme-dark) & {
+    background: rgba(99, 102, 241, 0.15);
+    color: #a5b4fc;
+    border-color: rgba(99, 102, 241, 0.35);
+
+    &:hover {
+      background: rgba(99, 102, 241, 0.25);
+    }
+  }
+}
+
 .ai-chip {
   display: inline-flex;
   align-items: center;

apps/client/src/app/components/ai-chat/ai-chat.component.ts

@@ -95,6 +95,7 @@ export class GfAiChatComponent implements OnInit, OnDestroy {
   public isSeeding = false;
   public enableRealEstate: boolean;
   public agentReachable: boolean | null = null;
+  public copySuccessMap: { [key: number]: boolean } = {};
 
   // Activity log tab
   public activeTab: 'chat' | 'log' = 'chat';
@@ -503,6 +504,49 @@ export class GfAiChatComponent implements OnInit, OnDestroy {
     return tool.replace(/_/g, ' ');
   }
 
+  // ---------------------------------------------------------------------------
+  // Copy to clipboard
+  // ---------------------------------------------------------------------------
+
+  public copyToClipboard(text: string, index: number): void {
+    const writeToClipboard = (t: string): Promise<void> => {
+      if (navigator.clipboard && window.isSecureContext) {
+        return navigator.clipboard.writeText(t);
+      }
+      return new Promise<void>((resolve, reject) => {
+        const textarea = document.createElement('textarea');
+        textarea.value = t;
+        textarea.style.position = 'fixed';
+        textarea.style.left = '-9999px';
+        textarea.style.top = '-9999px';
+        document.body.appendChild(textarea);
+        textarea.focus();
+        textarea.select();
+        try {
+          document.execCommand('copy');
+          document.body.removeChild(textarea);
+          resolve();
+        } catch (err) {
+          document.body.removeChild(textarea);
+          reject(err);
+        }
+      });
+    };
+
+    writeToClipboard(text)
+      .then(() => {
+        this.copySuccessMap[index] = true;
+        setTimeout(() => {
+          this.copySuccessMap[index] = false;
+          this.changeDetectorRef.markForCheck();
+        }, 1500);
+        this.changeDetectorRef.markForCheck();
+      })
+      .catch(() => {
+        console.warn('Copy failed');
+      });
+  }
+
   // ---------------------------------------------------------------------------
   // Connection health check
   // ---------------------------------------------------------------------------