Fix list truncation

bot.py

@@ -188,21 +188,52 @@ async def on_media_during_keywords(msg: Message):
 
 # ── /list ────────────────────────────────────────────────────────────────────
 
+LIST_PAGE_SIZE = 30
+
+
+async def list_page(page: int) -> tuple[str, InlineKeyboardMarkup | None]:
+    total = await db.count_media()
+    if total == 0:
+        return "No memes saved yet.", None
+
+    total_pages = (total + LIST_PAGE_SIZE - 1) // LIST_PAGE_SIZE
+    page = max(0, min(page, total_pages - 1))
+    items = await db.list_media(page, LIST_PAGE_SIZE)
+    lines = [f"<code>{item['id']}</code> [{item['media_type']}] — {item['keywords']}" for item in items]
+    text = f"Page {page + 1} of {total_pages}\n" + "\n".join(lines)
+
+    buttons = []
+    if page > 0:
+        buttons.append(InlineKeyboardButton(text="‹ Previous", callback_data=f"list:{page - 1}"))
+    if page < total_pages - 1:
+        buttons.append(InlineKeyboardButton(text="Next ›", callback_data=f"list:{page + 1}"))
+    keyboard = InlineKeyboardMarkup(inline_keyboard=[buttons]) if buttons else None
+    return text, keyboard
+
+
 @dp.message(Command("list"))
 async def cmd_list(msg: Message):
     if not is_allowed(msg.from_user.id):
         return
-    items = await db.list_media()
-    if not items:
-        await msg.answer("No memes saved yet.")
+    text, keyboard = await list_page(0)
+    await msg.answer(text, parse_mode="HTML", reply_markup=keyboard)
+
+
+@dp.callback_query(F.data.startswith("list:"))
+async def on_list_page(callback: CallbackQuery):
+    if not is_allowed(callback.from_user.id):
+        await callback.answer("Not allowed.", show_alert=True)
         return
-    lines = []
-    for item in items[:30]:
-        lines.append(f"<code>{item['id']}</code> [{item['media_type']}] — {item['keywords']}")
-    text = "\n".join(lines)
-    if len(items) > 30:
-        text += f"\n…and {len(items) - 30} more."
-    await msg.answer(text, parse_mode="HTML")
+
+    try:
+        page = int(callback.data.split(":", 1)[1])
+    except ValueError:
+        await callback.answer("Invalid page.", show_alert=True)
+        return
+
+    text, keyboard = await list_page(page)
+    await callback.message.edit_text(text, parse_mode="HTML", reply_markup=keyboard)
+    await callback.answer()
 
 
 # ── /delete ──────────────────────────────────────────────────────────────────