ui(precedents): citation action buttons icon-only

Drop the visible "העתק" / "ערוך" labels and keep just the icon —
matches the editorial/judicial restraint of the surrounding card.
Tooltip + aria-label preserve the affordance for hover and assistive
tech.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

web-ui/src/components/precedents/formatted-citation.tsx

@@ -97,24 +97,19 @@ export function CitationCopyButton({
     }
   }
 
-  const dims = size === "xs" ? "h-7 px-2 text-[0.72rem]" : "h-8 px-2.5 text-xs";
+  const dims = size === "xs" ? "h-7 w-7" : "h-8 w-8";
   return (
     <button
       type="button"
       onClick={handleCopy}
-      title="העתק לפי כללי הציטוט (עם הדגשה לצדדים)"
-      className={`inline-flex items-center gap-1 rounded-md border border-rule bg-surface hover:bg-rule-soft/50 text-ink ${dims}`}
+      title={copied ? "הועתק" : "העתק לפי כללי הציטוט (עם הדגשה לצדדים)"}
+      aria-label={copied ? "הועתק" : "העתק מראה מקום"}
+      className={`inline-flex items-center justify-center rounded-md border border-rule bg-surface hover:bg-rule-soft/50 text-ink-muted hover:text-navy ${dims}`}
     >
       {copied ? (
-        <>
-          <Check className="w-3.5 h-3.5 text-emerald-600" />
-          הועתק
-        </>
+        <Check className="w-3.5 h-3.5 text-emerald-600" />
       ) : (
-        <>
-          <Copy className="w-3.5 h-3.5" />
-          העתק
-        </>
+        <Copy className="w-3.5 h-3.5" />
       )}
     </button>
   );