fix(frontend): channel posts show no sender id, a post sent as a chat shows its title and avatar

frontend/src/lib/components/MessageBubble.svelte

@@ -18,11 +18,14 @@
   import Icon from "#lib/components/ui/Icon.svelte";
   import WebPage from "#lib/components/WebPage.svelte";
   import { accountName, peerColorIndex, peerName } from "#lib/format/peer.js";
+  import { t } from "#lib/i18n/locale.svelte.js";
   import { accounts } from "#lib/stores/accounts.svelte.js";
+  import { chats } from "#lib/stores/chats.svelte.js";
   import { peers } from "#lib/stores/peers.svelte.js";
   import { toasts } from "#lib/stores/toasts.svelte.js";
   import { ui } from "#lib/stores/ui.svelte.js";
   import { appear } from "#lib/transitions/appear.js";
+  import { goto } from "$app/navigation";
 
   interface Props {
     animate: boolean;
@@ -59,27 +62,47 @@
   );
 
   const ownId = $derived(accounts.selected?.tg_user_id ?? null);
+  const senderChat = $derived(
+    message.sender_id !== null && message.sender_id < 0
+      ? message.sender_id
+      : null
+  );
   const sender = $derived(
-    message.sender_id === null ? undefined : peers.get(message.sender_id)
+    message.sender_id === null || senderChat !== null
+      ? undefined
+      : peers.get(message.sender_id)
   );
   const senderName = $derived.by(() => {
     if (own) {
-      return accounts.selected ? accountName(accounts.selected) : "You";
+      return accounts.selected ? accountName(accounts.selected) : t("chat.you");
+    }
+    if (senderChat !== null) {
+      return chats.byId(senderChat)?.title ?? "";
     }
     if (sender) {
       return peerName(sender);
     }
     return message.sender_id === null ? "" : String(message.sender_id);
   });
+
+  $effect(() => {
+    if (senderChat !== null) {
+      chats.ensure(senderChat);
+    }
+  });
   const colorIndex = $derived(peerColorIndex(message.sender_id ?? 0));
   const showName = $derived(isGroupChat && !own && firstInGroup);
 
   const avatarId = $derived(own ? ownId : message.sender_id);
-  const avatarHas = $derived(
-    own
-      ? ownId !== null && peers.get(ownId)?.has_avatar
-      : (sender?.has_avatar ?? false)
-  );
+  const avatarHas = $derived.by(() => {
+    if (own) {
+      return ownId !== null && Boolean(peers.get(ownId)?.has_avatar);
+    }
+    if (senderChat !== null) {
+      return chats.byId(senderChat)?.has_avatar ?? false;
+    }
+    return sender?.has_avatar ?? false;
+  });
 
   const hasCallbacks = $derived(
     message.inline_buttons.some((row) =>
@@ -116,14 +139,18 @@
   }
   async function copyText() {
     await navigator.clipboard.writeText(message.text ?? "");
-    toasts.success("Текст скопирован");
+    toasts.success(t("thread.copiedText"));
   }
   async function copyId() {
     await navigator.clipboard.writeText(String(message.message_id));
-    toasts.success("ID скопирован");
+    toasts.success(t("thread.copiedId"));
   }
   function openSenderProfile() {
-    if (message.sender_id !== null) {
+    if (senderChat === message.chat_id) {
+      ui.openPanel("profile");
+    } else if (senderChat !== null) {
+      goto(`/app/${senderChat}`);
+    } else if (message.sender_id !== null) {
       ui.openPerson(message.chat_id, message.sender_id);
     }
   }
@@ -155,7 +182,10 @@
               type="button"
             >
               <Avatar
-                avatar={{ id: avatarId, kind: "peer" }}
+                avatar={{
+                  id: avatarId,
+                  kind: senderChat === null ? "peer" : "chat",
+                }}
                 colorKey={avatarId}
                 hasAvatar={avatarHas}
                 name={senderName}
@@ -185,7 +215,7 @@
         {#if deleted}
           <span class="deleted-tag">
             <Icon name="delete" size="0.875rem" />
-            deleted
+            {t("thread.deleted")}
           </span>
         {/if}
         {#if message.poll}
@@ -218,7 +248,7 @@
             />
           </div>
         {:else if !(message.has_media || deleted || special)}
-          <div class="text empty">(no text)</div>
+          <div class="text empty">{t("feed.noText")}</div>
         {/if}
         {#if message.web_page}
           <WebPage {message} {onmedia} {own} />
@@ -233,8 +263,7 @@
         {#if linkCount > 0}
           <button class="detail-chip" onclick={openLinks} type="button">
             <Icon name="link" size="0.875rem" />
-            {linkCount}
-            {linkCount === 1 ? "ссылка" : "ссылки"}
+            {t("thread.links", { count: linkCount })}
           </button>
         {/if}
         <MessageMeta {message} {onversions} {own} />
@@ -244,7 +273,7 @@
         {#if hasCallbacks}
           <button class="detail-chip" onclick={openCallbacks} type="button">
             <Icon name="bot-command" size="0.875rem" />
-            Callback-данные
+            {t("panel.callbacks")}
           </button>
         {/if}
         {#if lastInGroup}
@@ -263,42 +292,44 @@
       <MessageReadItem {message} />
     {/if}
     <ContextMenuItem icon="note" onselect={openAnnotations}
-      >Заметки</ContextMenuItem
+      >{t("panel.annotations")}</ContextMenuItem
     >
     {#if message.reactions.length}
       <ContextMenuItem icon="heart" onselect={openReactions}
-        >Реакции</ContextMenuItem
+        >{t("panel.reactions")}</ContextMenuItem
       >
     {/if}
     {#if linkCount > 0}
-      <ContextMenuItem icon="link" onselect={openLinks}>Ссылки</ContextMenuItem>
+      <ContextMenuItem icon="link" onselect={openLinks}
+        >{t("panel.links")}</ContextMenuItem
+      >
     {/if}
     {#if hasCallbacks}
       <ContextMenuItem icon="bot-command" onselect={openCallbacks}
-        >Callback-данные</ContextMenuItem
+        >{t("panel.callbacks")}</ContextMenuItem
       >
     {/if}
     {#if message.edited_at}
       <ContextMenuItem icon="edit" onselect={onversions}
-        >Версии</ContextMenuItem
+        >{t("panel.versions")}</ContextMenuItem
       >
     {/if}
     {#if (message.reply?.message_id ?? null) !== null}
       <ContextMenuItem icon="reply" onselect={jumpToReply}
-        >Перейти к ответу</ContextMenuItem
+        >{t("thread.toReply")}</ContextMenuItem
       >
     {/if}
     {#if hasText}
       <ContextMenuItem icon="copy" onselect={copyText}
-        >Копировать текст</ContextMenuItem
+        >{t("thread.copyText")}</ContextMenuItem
       >
     {/if}
     <ContextMenuItem icon="hashtag" onselect={copyId}
-      >Копировать ID</ContextMenuItem
+      >{t("thread.copyId")}</ContextMenuItem
     >
     {#if isGroupChat && !own && message.sender_id !== null}
       <ContextMenuItem icon="info" onselect={openSenderProfile}
-        >Профиль автора</ContextMenuItem
+        >{t("thread.senderProfile")}</ContextMenuItem
       >
     {/if}
   {/snippet}

frontend/src/lib/components/MessageList.svelte

@@ -14,6 +14,8 @@
   import { formatDay } from "#lib/format/datetime.js";
   import { t } from "#lib/i18n/locale.svelte.js";
   import { accounts } from "#lib/stores/accounts.svelte.js";
+  import { chats } from "#lib/stores/chats.svelte.js";
+  import { discover } from "#lib/stores/discover.svelte.js";
   import { events } from "#lib/stores/events.svelte.js";
   import { peers } from "#lib/stores/peers.svelte.js";
   import { toasts } from "#lib/stores/toasts.svelte.js";
@@ -54,7 +56,11 @@
   let highlightTimer: ReturnType<typeof setTimeout> | null = null;
 
   const ownId = $derived(accounts.selected?.tg_user_id ?? null);
-  const isGroupChat = $derived(chatId < 0);
+  const isChannel = $derived(
+    Boolean(chats.byId(chatId)?.is_broadcast) ||
+      discover.get(chatId)?.kind === "channel"
+  );
+  const isGroupChat = $derived(chatId < 0 && !isChannel);
 
   interface Row {
     dayKey: string;