feat(web): AttachmentProgress overlay component

packages/web/src/components/chat/AttachmentProgress.tsx

@@ -0,0 +1,57 @@
+import React from 'react';
+import type { TransferState } from '../../stores/transferStore';
+
+interface Props {
+  loaded: number;
+  total: number;
+  state: TransferState;
+  filename: string;
+  onPause?: () => void;
+  onResume?: () => void;
+  onAbort?: () => void;
+  size?: 'tile' | 'pill';
+}
+
+function fmt(bytes: number): string {
+  if (bytes < 1024) return `${bytes} B`;
+  if (bytes < 1024 * 1024) return `${(bytes / 1024).toFixed(1)} KB`;
+  if (bytes < 1024 * 1024 * 1024) return `${(bytes / 1024 / 1024).toFixed(1)} MB`;
+  return `${(bytes / 1024 / 1024 / 1024).toFixed(2)} GB`;
+}
+
+export function AttachmentProgress({ loaded, total, state, filename, onPause, onResume, onAbort, size = 'tile' }: Props) {
+  const pct = total > 0 ? Math.min(100, Math.round((loaded / total) * 100)) : 0;
+  const bg = state === 'failed' ? 'bg-accent-rose/30' : 'bg-accent-mint/30';
+  const isFinal = state === 'completed' || state === 'aborted';
+  return (
+    <div className={`absolute inset-0 flex flex-col items-center justify-center gap-2 backdrop-blur-[2px] ${state === 'failed' ? 'bg-accent-rose/20' : 'bg-black/50'} pointer-events-auto`}>
+      <div
+        className={`w-9 h-9 rounded-full ${bg} flex items-center justify-center`}
+        style={state !== 'failed' ? { background: `conic-gradient(rgba(180,220,200,.85) ${pct}%, rgba(255,255,255,.15) ${pct}%)` } : undefined}
+      >
+        <div className="w-7 h-7 rounded-full bg-surface-overlay text-[10px] text-txt-primary flex items-center justify-center font-medium">
+          {state === 'failed' ? '!' : `${pct}%`}
+        </div>
+      </div>
+      {size === 'tile' && (
+        <div className="text-[10px] text-txt-primary text-center leading-tight px-1">
+          <div className="truncate max-w-[120px]">{filename}</div>
+          <div className="opacity-60">{fmt(loaded)} / {fmt(total)}</div>
+        </div>
+      )}
+      {!isFinal && (
+        <div className="absolute top-1 right-1 flex gap-1">
+          {state === 'paused' && onResume && (
+            <button onClick={onResume} className="bg-black/60 hover:bg-black/80 text-white w-5 h-5 rounded text-[9px]" aria-label="Resume">▶</button>
+          )}
+          {state === 'active' && onPause && (
+            <button onClick={onPause} className="bg-black/60 hover:bg-black/80 text-white w-5 h-5 rounded text-[9px]" aria-label="Pause">⏸</button>
+          )}
+          {onAbort && (
+            <button onClick={onAbort} className="bg-black/60 hover:bg-black/80 text-white w-5 h-5 rounded text-[9px]" aria-label="Abort">✕</button>
+          )}
+        </div>
+      )}
+    </div>
+  );
+}