fix(web): chat sidebar layout, media context actions, and scrollable chat info

web/src/components/ChatInfoPanel.tsx

@@ -45,12 +45,21 @@ export function ChatInfoPanel({ chatId, open, onClose }: Props) {
   const [attachments, setAttachments] = useState<ChatAttachment[]>([]);
   const [attachmentsLoading, setAttachmentsLoading] = useState(false);
   const [attachmentCtx, setAttachmentCtx] = useState<{ x: number; y: number; url: string } | null>(null);
+  const [attachmentsTab, setAttachmentsTab] = useState<"media" | "files">("media");
 
   const myRole = useMemo(() => members.find((m) => m.user_id === me?.id)?.role, [members, me?.id]);
   const isGroupLike = chat?.type === "group" || chat?.type === "channel";
   const showMembersSection = Boolean(chat && isGroupLike && !chat.is_saved);
   const canManageMembers = Boolean(isGroupLike && (myRole === "owner" || myRole === "admin"));
   const canChangeRoles = Boolean(isGroupLike && myRole === "owner");
+  const mediaAttachments = useMemo(
+    () => attachments.filter((item) => item.file_type.startsWith("image/") || item.file_type.startsWith("video/")),
+    [attachments]
+  );
+  const fileAttachments = useMemo(
+    () => attachments.filter((item) => !item.file_type.startsWith("image/") && !item.file_type.startsWith("video/")),
+    [attachments]
+  );
 
   async function refreshMembers(targetChatId: number) {
     const nextMembers = await listChatMembers(targetChatId);
@@ -139,17 +148,18 @@ export function ChatInfoPanel({ chatId, open, onClose }: Props) {
         onClose();
       }}
     >
-      <aside className="absolute right-0 top-0 h-full w-full max-w-sm border-l border-slate-700/70 bg-slate-900/95 p-4 shadow-2xl" onClick={(e) => e.stopPropagation()}>
-        <div className="mb-3 flex items-center justify-between">
+      <aside className="absolute right-0 top-0 flex h-full w-full max-w-sm flex-col border-l border-slate-700/70 bg-slate-900/95 shadow-2xl" onClick={(e) => e.stopPropagation()}>
+        <div className="flex items-center justify-between border-b border-slate-700/60 px-4 py-3">
           <p className="text-sm font-semibold">Chat info</p>
           <button className="rounded bg-slate-700 px-2 py-1 text-xs" onClick={onClose}>Close</button>
         </div>
 
-        {loading ? <p className="text-sm text-slate-300">Loading...</p> : null}
-        {error ? <p className="text-sm text-red-400">{error}</p> : null}
+        <div className="tg-scrollbar min-h-0 flex-1 overflow-y-auto px-4 py-3">
+          {loading ? <p className="text-sm text-slate-300">Loading...</p> : null}
+          {error ? <p className="text-sm text-red-400">{error}</p> : null}
 
-        {chat ? (
-          <>
+          {chat ? (
+            <>
             <div className="mb-3 rounded-lg border border-slate-700/70 bg-slate-800/60 p-3">
               <div className="mb-2 flex items-center justify-between">
                 <p className="text-xs text-slate-400">Notifications</p>
@@ -343,38 +353,31 @@ export function ChatInfoPanel({ chatId, open, onClose }: Props) {
               <p className="mb-2 text-xs font-semibold uppercase tracking-wide text-slate-300">
                 Media & Files {attachments.length > 0 ? `(${attachments.length})` : ""}
               </p>
+              <div className="mb-2 flex items-center gap-2 border-b border-slate-700/60 pb-2 text-xs">
+                <button
+                  className={`rounded px-2 py-1 ${attachmentsTab === "media" ? "bg-sky-500/30 text-sky-200" : "text-slate-300"}`}
+                  onClick={() => setAttachmentsTab("media")}
+                  type="button"
+                >
+                  Media
+                </button>
+                <button
+                  className={`rounded px-2 py-1 ${attachmentsTab === "files" ? "bg-sky-500/30 text-sky-200" : "text-slate-300"}`}
+                  onClick={() => setAttachmentsTab("files")}
+                  type="button"
+                >
+                  Files
+                </button>
+              </div>
               {attachmentsLoading ? <p className="text-xs text-slate-400">Loading attachments...</p> : null}
               {!attachmentsLoading && attachments.length === 0 ? <p className="text-xs text-slate-400">No attachments yet</p> : null}
 
-              {!attachmentsLoading ? (
+              {!attachmentsLoading && attachmentsTab === "media" ? (
                 <>
-                  <div className="mb-2 grid grid-cols-3 gap-1">
-                    {attachments
-                      .filter((item) => item.file_type.startsWith("image/"))
-                      .slice(0, 9)
-                      .map((item) => (
-                        <button
-                          className="group relative aspect-square overflow-hidden rounded-md border border-slate-700/70 bg-slate-900"
-                          key={`media-image-${item.id}`}
-                          onClick={() => window.open(item.file_url, "_blank", "noopener,noreferrer")}
-                          onContextMenu={(event) => {
-                            event.preventDefault();
-                            setAttachmentCtx({
-                              x: Math.min(event.clientX + 4, window.innerWidth - 190),
-                              y: Math.min(event.clientY + 4, window.innerHeight - 120),
-                              url: item.file_url
-                            });
-                          }}
-                          type="button"
-                        >
-                          <img alt="attachment" className="h-full w-full object-cover transition group-hover:scale-105" src={item.file_url} />
-                        </button>
-                      ))}
-                  </div>
-                  <div className="tg-scrollbar max-h-44 space-y-1 overflow-auto">
-                    {attachments.slice(0, 40).map((item) => (
+                  <div className="grid grid-cols-3 gap-1">
+                    {mediaAttachments.slice(0, 90).map((item) => (
                       <button
-                        className="block w-full rounded-md border border-slate-700/60 bg-slate-900/70 px-2 py-1.5 text-left hover:bg-slate-700/70"
+                        className="group relative aspect-square overflow-hidden rounded-md border border-slate-700/70 bg-slate-900"
                         key={`media-item-${item.id}`}
                         onClick={() => window.open(item.file_url, "_blank", "noopener,noreferrer")}
                         onContextMenu={(event) => {
@@ -387,15 +390,41 @@ export function ChatInfoPanel({ chatId, open, onClose }: Props) {
                         }}
                         type="button"
                       >
-                        <p className="truncate text-xs font-semibold text-slate-200">{extractFileName(item.file_url)}</p>
-                        <p className="text-[11px] text-slate-400">
-                          {attachmentKind(item.file_type)} • {formatBytes(item.file_size)}
-                        </p>
+                        {item.file_type.startsWith("video/") ? (
+                          <video className="h-full w-full object-cover transition group-hover:scale-105" muted src={item.file_url} />
+                        ) : (
+                          <img alt="attachment" className="h-full w-full object-cover transition group-hover:scale-105" src={item.file_url} />
+                        )}
                       </button>
                     ))}
                   </div>
                 </>
               ) : null}
+              {!attachmentsLoading && attachmentsTab === "files" ? (
+                <div className="tg-scrollbar max-h-72 space-y-1 overflow-auto">
+                  {fileAttachments.slice(0, 100).map((item) => (
+                    <button
+                      className="block w-full rounded-md border border-slate-700/60 bg-slate-900/70 px-2 py-1.5 text-left hover:bg-slate-700/70"
+                      key={`file-item-${item.id}`}
+                      onClick={() => window.open(item.file_url, "_blank", "noopener,noreferrer")}
+                      onContextMenu={(event) => {
+                        event.preventDefault();
+                        setAttachmentCtx({
+                          x: Math.min(event.clientX + 4, window.innerWidth - 190),
+                          y: Math.min(event.clientY + 4, window.innerHeight - 120),
+                          url: item.file_url
+                        });
+                      }}
+                      type="button"
+                    >
+                      <p className="truncate text-xs font-semibold text-slate-200">{extractFileName(item.file_url)}</p>
+                      <p className="text-[11px] text-slate-400">
+                        {attachmentKind(item.file_type)} • {formatBytes(item.file_size)}
+                      </p>
+                    </button>
+                  ))}
+                </div>
+              ) : null}
             </div>
 
             {chat.type === "private" && !chat.is_saved && chat.counterpart_user_id ? (
@@ -440,8 +469,9 @@ export function ChatInfoPanel({ chatId, open, onClose }: Props) {
                 Leave chat
               </button>
             ) : null}
-          </>
-        ) : null}
+            </>
+          ) : null}
+        </div>
       </aside>
       {attachmentCtx ? (
         <div

web/src/components/ChatList.tsx

@@ -157,7 +157,7 @@ export function ChatList() {
   const visibleChats = tab === "archived" ? archivedChats : filteredChats;
 
   return (
-    <aside className="relative flex h-full w-full max-w-xs flex-col bg-slate-900/60" onClick={() => { setCtxChatId(null); setCtxPos(null); }}>
+    <aside className="relative flex h-full w-full flex-col bg-slate-900/60" onClick={() => { setCtxChatId(null); setCtxPos(null); }}>
       <div className="border-b border-slate-700/50 px-3 py-3">
         <div className="mb-2 flex items-center gap-2">
           <button className="rounded-lg bg-slate-700/70 px-2 py-2 text-xs">☰</button>

web/src/components/MessageList.tsx

@@ -1,4 +1,4 @@
-import { useEffect, useMemo, useState, type MouseEvent } from "react";
+import { useEffect, useMemo, useRef, useState, type MouseEvent } from "react";
 import { createPortal } from "react-dom";
 import {
   deleteMessage,
@@ -17,12 +17,7 @@ type ContextMenuState = {
   x: number;
   y: number;
   messageId: number;
-} | null;
-
-type AttachmentMenuState = {
-  x: number;
-  y: number;
-  url: string;
+  attachmentUrl?: string | null;
 } | null;
 
 type PendingDeleteState = {
@@ -52,7 +47,6 @@ export function MessageList() {
   const restoreMessages = useChatStore((s) => s.restoreMessages);
 
   const [ctx, setCtx] = useState<ContextMenuState>(null);
-  const [attachmentCtx, setAttachmentCtx] = useState<AttachmentMenuState>(null);
   const [forwardMessageId, setForwardMessageId] = useState<number | null>(null);
   const [forwardQuery, setForwardQuery] = useState("");
   const [forwardError, setForwardError] = useState<string | null>(null);
@@ -64,6 +58,7 @@ export function MessageList() {
   const [pendingDelete, setPendingDelete] = useState<PendingDeleteState>(null);
   const [undoTick, setUndoTick] = useState(0);
   const [reactionsByMessage, setReactionsByMessage] = useState<Record<number, MessageReaction[]>>({});
+  const [toast, setToast] = useState<string | null>(null);
 
   const messages = useMemo(() => {
     if (!activeChatId) {
@@ -100,7 +95,6 @@ export function MessageList() {
         return;
       }
       setCtx(null);
-      setAttachmentCtx(null);
       setForwardMessageId(null);
       setForwardSelectedChatIds(new Set());
       setDeleteMessageId(null);
@@ -113,13 +107,20 @@ export function MessageList() {
   useEffect(() => {
     setSelectedIds(new Set());
     setCtx(null);
-    setAttachmentCtx(null);
     setDeleteMessageId(null);
     setForwardMessageId(null);
     setForwardSelectedChatIds(new Set());
     setReactionsByMessage({});
   }, [activeChatId]);
 
+  useEffect(() => {
+    if (!toast) {
+      return;
+    }
+    const timer = window.setTimeout(() => setToast(null), 2200);
+    return () => window.clearTimeout(timer);
+  }, [toast]);
+
   useEffect(() => {
     if (!pendingDelete) {
       return;
@@ -298,7 +299,7 @@ export function MessageList() {
   }
 
   return (
-    <div className="flex h-full flex-col" onClick={() => { setCtx(null); setAttachmentCtx(null); }}>
+    <div className="flex h-full flex-col" onClick={() => { setCtx(null); }}>
       {activeChat?.pinned_message_id ? (
         <div className="border-b border-slate-700/50 bg-slate-900/60 px-4 py-2 text-xs text-sky-300">
           📌 {messagesMap.get(activeChat.pinned_message_id)?.text || "Pinned message"}
@@ -371,7 +372,7 @@ export function MessageList() {
                     event.preventDefault();
                     void ensureReactionsLoaded(message.id);
                     const pos = getSafeContextPosition(event.clientX, event.clientY, 220, 220);
-                    setCtx({ x: pos.x, y: pos.y, messageId: message.id });
+                    setCtx({ x: pos.x, y: pos.y, messageId: message.id, attachmentUrl: null });
                   }}
                 >
                   {selectedIds.size > 0 ? (
@@ -412,8 +413,9 @@ export function MessageList() {
                   {renderMessageContent(message.type, message.text, {
                     onAttachmentContextMenu: (event, url) => {
                       event.preventDefault();
-                      const pos = getSafeContextPosition(event.clientX, event.clientY, 180, 110);
-                      setAttachmentCtx({ x: pos.x, y: pos.y, url });
+                      void ensureReactionsLoaded(message.id);
+                      const pos = getSafeContextPosition(event.clientX, event.clientY, 220, 280);
+                      setCtx({ x: pos.x, y: pos.y, messageId: message.id, attachmentUrl: url });
                     }
                   })}
 
@@ -517,37 +519,54 @@ export function MessageList() {
               <button className="block w-full rounded px-2 py-1.5 text-left text-sm hover:bg-slate-800" onClick={() => void handlePin(ctx.messageId)}>
                 Pin / Unpin
               </button>
-            </div>,
-            document.body
-          )
-        : null}
-
-      {attachmentCtx
-        ? createPortal(
-            <div
-              className="fixed z-[111] w-44 rounded-lg border border-slate-700/80 bg-slate-900/95 p-1 shadow-2xl"
-              style={{ left: attachmentCtx.x, top: attachmentCtx.y }}
-              onClick={(event) => event.stopPropagation()}
-            >
-              <a className="block rounded px-2 py-1.5 text-sm hover:bg-slate-800" href={attachmentCtx.url} rel="noreferrer" target="_blank">
-                Open
-              </a>
-              <a className="block rounded px-2 py-1.5 text-sm hover:bg-slate-800" href={attachmentCtx.url} download>
-                Download
-              </a>
-              <button
-                className="block w-full rounded px-2 py-1.5 text-left text-sm hover:bg-slate-800"
-                onClick={async () => {
-                  try {
-                    await navigator.clipboard.writeText(attachmentCtx.url);
-                  } catch {
-                    return;
-                  }
-                }}
-                type="button"
-              >
-                Copy link
-              </button>
+              {ctx.attachmentUrl ? (
+                <>
+                  <div className="my-1 h-px bg-slate-700/80" />
+                  <a className="block w-full rounded px-2 py-1.5 text-left text-sm hover:bg-slate-800" href={ctx.attachmentUrl} rel="noreferrer" target="_blank">
+                    Open media
+                  </a>
+                  <button
+                    className="block w-full rounded px-2 py-1.5 text-left text-sm hover:bg-slate-800"
+                    onClick={async () => {
+                      const url = ctx.attachmentUrl;
+                      if (!url) {
+                        return;
+                      }
+                      try {
+                        await downloadFileFromUrl(url);
+                        setToast("File downloaded");
+                      } catch {
+                        setToast("Download failed");
+                      } finally {
+                        setCtx(null);
+                      }
+                    }}
+                    type="button"
+                  >
+                    Download
+                  </button>
+                  <button
+                    className="block w-full rounded px-2 py-1.5 text-left text-sm hover:bg-slate-800"
+                    onClick={async () => {
+                      const url = ctx.attachmentUrl;
+                      if (!url) {
+                        return;
+                      }
+                      try {
+                        await navigator.clipboard.writeText(url);
+                        setToast("Link copied");
+                      } catch {
+                        setToast("Copy failed");
+                      } finally {
+                        setCtx(null);
+                      }
+                    }}
+                    type="button"
+                  >
+                    Copy link
+                  </button>
+                </>
+              ) : null}
             </div>,
             document.body
           )
@@ -638,6 +657,11 @@ export function MessageList() {
           </div>
         </div>
       ) : null}
+      {toast ? (
+        <div className="pointer-events-none absolute bottom-3 left-0 right-0 z-[120] flex justify-center px-3">
+          <div className="rounded-lg border border-slate-700/80 bg-slate-900/95 px-3 py-2 text-xs text-slate-100 shadow-xl">{toast}</div>
+        </div>
+      ) : null}
     </div>
   );
 }
@@ -672,7 +696,7 @@ function renderMessageContent(
           <span className="inline-flex h-7 w-7 items-center justify-center rounded-full bg-slate-700/80">🎤</span>
           <span className="font-semibold">Voice message</span>
         </div>
-        <audio className="w-full" controls preload="metadata" src={text} />
+        <AudioInlinePlayer src={text} />
       </div>
     );
   }
@@ -687,7 +711,7 @@ function renderMessageContent(
             <p className="text-[11px] text-slate-400">Audio file</p>
           </div>
         </div>
-        <audio className="w-full" controls preload="metadata" src={text} />
+        <AudioInlinePlayer src={text} />
       </div>
     );
   }
@@ -756,3 +780,130 @@ function extractFileName(url: string): string {
     return value ? decodeURIComponent(value) : "file";
   }
 }
+
+async function downloadFileFromUrl(url: string): Promise<void> {
+  const response = await fetch(url, { mode: "cors" });
+  if (!response.ok) {
+    throw new Error("Download failed");
+  }
+  const blob = await response.blob();
+  const filename = extractFileName(url);
+  const blobUrl = window.URL.createObjectURL(blob);
+  const link = document.createElement("a");
+  link.href = blobUrl;
+  link.download = filename;
+  document.body.appendChild(link);
+  link.click();
+  link.remove();
+  window.URL.revokeObjectURL(blobUrl);
+}
+
+function AudioInlinePlayer({ src }: { src: string }) {
+  const audioRef = useRef<HTMLAudioElement | null>(null);
+  const [isPlaying, setIsPlaying] = useState(false);
+  const [duration, setDuration] = useState(0);
+  const [position, setPosition] = useState(0);
+  const [volume, setVolume] = useState(1);
+
+  useEffect(() => {
+    const audio = audioRef.current;
+    if (!audio) return;
+
+    const onLoaded = () => {
+      setDuration(Number.isFinite(audio.duration) ? audio.duration : 0);
+    };
+    const onTime = () => {
+      setPosition(audio.currentTime || 0);
+    };
+    const onEnded = () => {
+      setIsPlaying(false);
+    };
+
+    audio.addEventListener("loadedmetadata", onLoaded);
+    audio.addEventListener("timeupdate", onTime);
+    audio.addEventListener("ended", onEnded);
+    return () => {
+      audio.removeEventListener("loadedmetadata", onLoaded);
+      audio.removeEventListener("timeupdate", onTime);
+      audio.removeEventListener("ended", onEnded);
+    };
+  }, []);
+
+  async function togglePlay() {
+    const audio = audioRef.current;
+    if (!audio) return;
+    if (isPlaying) {
+      audio.pause();
+      setIsPlaying(false);
+      return;
+    }
+    try {
+      await audio.play();
+      setIsPlaying(true);
+    } catch {
+      setIsPlaying(false);
+    }
+  }
+
+  function onSeek(nextValue: number) {
+    const audio = audioRef.current;
+    if (!audio) return;
+    audio.currentTime = nextValue;
+    setPosition(nextValue);
+  }
+
+  function onVolume(nextValue: number) {
+    const audio = audioRef.current;
+    if (!audio) return;
+    audio.volume = nextValue;
+    setVolume(nextValue);
+  }
+
+  return (
+    <div className="rounded-lg border border-sky-500/40 bg-sky-600/20 px-2 py-1.5">
+      <audio ref={audioRef} preload="metadata" src={src} />
+      <div className="flex items-center gap-2">
+        <button
+          className="inline-flex h-7 w-7 items-center justify-center rounded-full bg-slate-900/70 text-xs text-white hover:bg-slate-900"
+          onClick={() => void togglePlay()}
+          type="button"
+        >
+          {isPlaying ? "❚❚" : "▶"}
+        </button>
+
+        <input
+          className="h-1.5 w-24 cursor-pointer accent-sky-300"
+          max={Math.max(duration, 0.01)}
+          min={0}
+          onChange={(event) => onSeek(Number(event.target.value))}
+          step={0.1}
+          type="range"
+          value={Math.min(position, Math.max(duration, 0.01))}
+        />
+
+        <span className="w-20 text-center text-xs tabular-nums text-slate-100">
+          {formatAudioTime(position)} / {formatAudioTime(duration)}
+        </span>
+
+        <span className="text-xs text-slate-200">🔊</span>
+        <input
+          className="h-1.5 w-16 cursor-pointer accent-slate-100"
+          max={1}
+          min={0}
+          onChange={(event) => onVolume(Number(event.target.value))}
+          step={0.05}
+          type="range"
+          value={volume}
+        />
+      </div>
+    </div>
+  );
+}
+
+function formatAudioTime(seconds: number): string {
+  if (!Number.isFinite(seconds) || seconds < 0) return "0:00";
+  const total = Math.floor(seconds);
+  const minutes = Math.floor(total / 60);
+  const rem = total % 60;
+  return `${minutes}:${String(rem).padStart(2, "0")}`;
+}

web/src/components/NewChatPanel.tsx

@@ -117,8 +117,9 @@ export function NewChatPanel() {
   return (
     <>
       <div className="absolute bottom-4 right-4 z-20">
+        <div className="relative">
         {menuOpen ? (
-          <div className="mb-2 w-48 rounded-xl border border-slate-700/80 bg-slate-900/95 p-1 shadow-xl">
+          <div className="absolute bottom-14 right-0 w-48 rounded-xl border border-slate-700/80 bg-slate-900/95 p-1 shadow-xl">
             <button className="block w-full rounded-lg px-3 py-2 text-left text-sm hover:bg-slate-800" onClick={() => void openSavedMessages()}>
               Saved Messages
             </button>
@@ -139,6 +140,7 @@ export function NewChatPanel() {
         <button className="flex h-12 w-12 items-center justify-center rounded-full bg-sky-500 text-slate-950 shadow-lg hover:bg-sky-400" onClick={() => setMenuOpen((v) => !v)}>
           <span className="block w-5 text-center text-2xl leading-none">{menuOpen ? "✕" : "+"}</span>
         </button>
+        </div>
       </div>
 
       {dialog !== "none" ? (