feat: add embed sub-components (Generic, Video, Image, Rich) and dispatcher

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

@@ -0,0 +1,49 @@
+import React from 'react';
+import type { Embed } from '@backspace/shared';
+import { GenericEmbed } from './embeds/GenericEmbed';
+import { VideoEmbed } from './embeds/VideoEmbed';
+import { ImageEmbed } from './embeds/ImageEmbed';
+import { RichEmbed } from './embeds/RichEmbed';
+
+interface EmbedRendererProps {
+  embed: Embed;
+}
+
+export function EmbedRenderer({ embed }: EmbedRendererProps) {
+  switch (embed.embedType) {
+    case 'video':
+      return <VideoEmbed embed={embed} />;
+
+    case 'image':
+      return <ImageEmbed embed={embed} />;
+
+    case 'audio':
+      return (
+        <div className="mt-2 max-w-[520px] bg-surface-channel rounded-[4px] border-l-4 border-border-hard p-3">
+          {embed.title && (
+            <a
+              href={embed.url}
+              target="_blank"
+              rel="noopener noreferrer"
+              className="text-[14px] text-sky-400 font-semibold hover:underline block mb-2 truncate"
+            >
+              {embed.title}
+            </a>
+          )}
+          <audio
+            src={embed.url}
+            controls
+            preload="metadata"
+            className="w-full"
+          />
+        </div>
+      );
+
+    case 'rich':
+      return <RichEmbed embed={embed} />;
+
+    case 'generic':
+    default:
+      return <GenericEmbed embed={embed} />;
+  }
+}

packages/web/src/components/chat/embeds/GenericEmbed.tsx

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+import React from 'react';
+import type { Embed } from '@backspace/shared';
+
+interface GenericEmbedProps {
+  embed: Embed;
+}
+
+function hostnameFromUrl(url: string): string | null {
+  try {
+    return new URL(url).hostname.replace(/^www\./, '');
+  } catch {
+    return null;
+  }
+}
+
+export function GenericEmbed({ embed }: GenericEmbedProps) {
+  if (!embed.title) return null;
+
+  const providerName = embed.provider ?? hostnameFromUrl(embed.url);
+
+  return (
+    <div className="mt-2 max-w-[520px] bg-surface-channel rounded-[4px] border-l-4 border-border-hard flex overflow-hidden">
+      <div className="flex-1 p-3 min-w-0">
+        {providerName && (
+          <div className="text-[12px] text-txt-muted font-medium mb-1 truncate">
+            {providerName}
+          </div>
+        )}
+        <a
+          href={embed.url}
+          target="_blank"
+          rel="noopener noreferrer"
+          className="text-[16px] text-sky-400 font-semibold hover:underline block mb-2 truncate"
+        >
+          {embed.title}
+        </a>
+        {embed.description && (
+          <div className="text-[14px] text-txt-message leading-[1.125rem] line-clamp-3">
+            {embed.description}
+          </div>
+        )}
+      </div>
+      {embed.image && (
+        <div className="w-[80px] h-[80px] m-3 flex-shrink-0">
+          <img
+            src={embed.image}
+            alt=""
+            className="w-full h-full object-cover rounded-[4px]"
+            referrerPolicy="no-referrer"
+          />
+        </div>
+      )}
+    </div>
+  );
+}

packages/web/src/components/chat/embeds/ImageEmbed.tsx

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+import React from 'react';
+import type { Embed } from '@backspace/shared';
+import { useUIStore } from '../../../stores/uiStore';
+
+interface ImageEmbedProps {
+  embed: Embed;
+}
+
+export function ImageEmbed({ embed }: ImageEmbedProps) {
+  const openImagePreview = useUIStore((s) => s.openImagePreview);
+  const imageUrl = embed.image ?? embed.url;
+
+  return (
+    <div className="mt-2">
+      <img
+        src={imageUrl}
+        alt={embed.title ?? ''}
+        className="max-w-[520px] max-h-[350px] object-contain rounded-lg cursor-pointer hover:opacity-90 transition-opacity"
+        loading="lazy"
+        referrerPolicy="no-referrer"
+        onClick={() => openImagePreview(imageUrl)}
+      />
+    </div>
+  );
+}

packages/web/src/components/chat/embeds/RichEmbed.tsx

@@ -0,0 +1,90 @@
+import React, { useState } from 'react';
+import type { Embed } from '@backspace/shared';
+
+interface RichEmbedProps {
+  embed: Embed;
+}
+
+const PROVIDER_HEIGHTS: Record<string, number> = {
+  spotify: 152,
+};
+
+function getIframeHeight(embed: Embed): number {
+  if (embed.height != null) return embed.height;
+  if (embed.provider != null) {
+    const providerHeight = PROVIDER_HEIGHTS[embed.provider];
+    if (providerHeight != null) return providerHeight;
+  }
+  return 200;
+}
+
+export function RichEmbed({ embed }: RichEmbedProps) {
+  const [isLoaded, setIsLoaded] = useState(false);
+  const iframeHeight = getIframeHeight(embed);
+
+  const providerLabel = embed.provider
+    ? embed.provider.charAt(0).toUpperCase() + embed.provider.slice(1)
+    : null;
+
+  if (!embed.embedUrl) return null;
+
+  return (
+    <div className="mt-2 max-w-[520px] rounded-lg overflow-hidden bg-surface-channel border border-white/[0.06]">
+      {isLoaded ? (
+        <iframe
+          src={embed.embedUrl}
+          title={embed.title ?? providerLabel ?? 'Embed'}
+          height={iframeHeight}
+          className="w-full block"
+          allow="autoplay; clipboard-write; encrypted-media; fullscreen; picture-in-picture"
+          sandbox="allow-scripts allow-same-origin allow-popups"
+          referrerPolicy="no-referrer"
+          loading="lazy"
+        />
+      ) : (
+        <button
+          type="button"
+          onClick={() => setIsLoaded(true)}
+          className="w-full text-left focus:outline-none group"
+          aria-label={`Load ${providerLabel ?? 'embed'}`}
+        >
+          <div className="flex items-start gap-3 p-3">
+            {embed.image && (
+              <div className="w-[80px] h-[80px] flex-shrink-0">
+                <img
+                  src={embed.image}
+                  alt=""
+                  className="w-full h-full object-cover rounded"
+                  referrerPolicy="no-referrer"
+                />
+              </div>
+            )}
+            <div className="flex-1 min-w-0">
+              {providerLabel && (
+                <div className="text-[12px] text-txt-muted font-medium mb-1">
+                  {providerLabel}
+                </div>
+              )}
+              {embed.title && (
+                <div className="text-[14px] text-sky-400 font-semibold group-hover:underline line-clamp-2">
+                  {embed.title}
+                </div>
+              )}
+              {embed.description && (
+                <div className="text-[13px] text-txt-muted mt-1 line-clamp-2">
+                  {embed.description}
+                </div>
+              )}
+              <div className="text-[12px] text-txt-muted mt-2 flex items-center gap-1.5">
+                <svg viewBox="0 0 24 24" fill="currentColor" className="w-3.5 h-3.5">
+                  <path d="M8 5v14l11-7z" />
+                </svg>
+                Click to load
+              </div>
+            </div>
+          </div>
+        </button>
+      )}
+    </div>
+  );
+}

packages/web/src/components/chat/embeds/VideoEmbed.tsx

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+import React, { useState } from 'react';
+import type { Embed } from '@backspace/shared';
+
+interface VideoEmbedProps {
+  embed: Embed;
+}
+
+export function VideoEmbed({ embed }: VideoEmbedProps) {
+  const [isPlaying, setIsPlaying] = useState(false);
+
+  // Direct video URL — no provider, no embedUrl
+  if (!embed.provider && !embed.embedUrl) {
+    return (
+      <div className="mt-2 max-w-[520px]">
+        <video
+          src={embed.url}
+          controls
+          preload="none"
+          className="w-full rounded-lg bg-black"
+        />
+      </div>
+    );
+  }
+
+  // Provider iframe (YouTube / Vimeo)
+  const providerLabel = embed.provider
+    ? embed.provider.charAt(0).toUpperCase() + embed.provider.slice(1)
+    : null;
+
+  return (
+    <div className="mt-2 max-w-[520px] rounded-lg overflow-hidden bg-surface-channel border border-white/[0.06]">
+      {/* 16:9 video area */}
+      <div className="relative w-full" style={{ paddingBottom: '56.25%' }}>
+        {isPlaying && embed.embedUrl ? (
+          <iframe
+            className="absolute inset-0 w-full h-full"
+            src={`${embed.embedUrl}?autoplay=1`}
+            title={embed.title ?? 'Video'}
+            allow="autoplay; fullscreen; picture-in-picture"
+            sandbox="allow-scripts allow-same-origin allow-popups"
+            referrerPolicy="no-referrer"
+          />
+        ) : (
+          <button
+            type="button"
+            onClick={() => setIsPlaying(true)}
+            className="absolute inset-0 w-full h-full flex items-center justify-center group focus:outline-none"
+            aria-label={`Play ${embed.title ?? 'video'}`}
+          >
+            {embed.image ? (
+              <img
+                src={embed.image}
+                alt=""
+                className="absolute inset-0 w-full h-full object-cover"
+                referrerPolicy="no-referrer"
+              />
+            ) : (
+              <div className="absolute inset-0 bg-black/60" />
+            )}
+            {/* Play button — glass-bubble style */}
+            <span className="glass-bubble relative z-10 flex items-center justify-center w-14 h-14 rounded-full group-hover:scale-110 transition-transform duration-150">
+              <svg
+                viewBox="0 0 24 24"
+                fill="currentColor"
+                className="w-6 h-6 text-white ml-1"
+              >
+                <path d="M8 5v14l11-7z" />
+              </svg>
+            </span>
+          </button>
+        )}
+      </div>
+
+      {/* Title / provider footer */}
+      {(embed.title || providerLabel) && (
+        <div className="px-3 py-2">
+          {providerLabel && (
+            <div className="text-[12px] text-txt-muted font-medium mb-0.5">
+              {providerLabel}
+            </div>
+          )}
+          {embed.title && (
+            <a
+              href={embed.url}
+              target="_blank"
+              rel="noopener noreferrer"
+              className="text-[14px] text-sky-400 font-semibold hover:underline line-clamp-2"
+            >
+              {embed.title}
+            </a>
+          )}
+        </div>
+      )}
+    </div>
+  );
+}