Remove console.error in share.js (ESLint no-console)

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

assets/modules/share.js

@@ -16,8 +16,8 @@ async function handleCopyClick(event) {
         setTimeout(() => {
             btn.innerHTML = original;
         }, 1500);
-    } catch (err) {
-        console.error('Failed to copy text: ', err);
+    } catch {
+        // Clipboard API not available
     }
 }