feat: implement adapter/telegram/ with aiogram 3.x

Virtual DM chats, FSM (idle/waiting_response/settings states),
SQLite local DB for tg_users+chats, converter, keyboards, and
handlers for /start, /new, /chats, /settings, confirm callbacks.

adapter/telegram/keyboards/chat.py

@@ -0,0 +1,16 @@
+# adapter/telegram/keyboards/chat.py
+from __future__ import annotations
+
+from aiogram.types import InlineKeyboardButton, InlineKeyboardMarkup
+
+
+def chats_list_keyboard(chats: list[dict], active_chat_id: str | None) -> InlineKeyboardMarkup:
+    buttons = []
+    for chat in chats:
+        mark = "● " if chat["chat_id"] == active_chat_id else ""
+        buttons.append([InlineKeyboardButton(
+            text=f"{mark}{chat['name']}",
+            callback_data=f"switch:{chat['chat_id']}:{chat['name']}",
+        )])
+    buttons.append([InlineKeyboardButton(text="➕ Новый чат", callback_data="new_chat")])
+    return InlineKeyboardMarkup(inline_keyboard=buttons)

adapter/telegram/keyboards/confirm.py

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+# adapter/telegram/keyboards/confirm.py
+from __future__ import annotations
+
+from aiogram.types import InlineKeyboardButton, InlineKeyboardMarkup
+
+
+def confirm_keyboard(action_id: str) -> InlineKeyboardMarkup:
+    return InlineKeyboardMarkup(inline_keyboard=[[
+        InlineKeyboardButton(text="✅ Да", callback_data=f"confirm:yes:{action_id}"),
+        InlineKeyboardButton(text="❌ Нет", callback_data=f"confirm:no:{action_id}"),
+    ]])

adapter/telegram/keyboards/settings.py

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+# adapter/telegram/keyboards/settings.py
+from __future__ import annotations
+
+from aiogram.types import InlineKeyboardButton, InlineKeyboardMarkup
+
+from platform.interface import UserSettings
+
+
+def settings_main_keyboard() -> InlineKeyboardMarkup:
+    return InlineKeyboardMarkup(inline_keyboard=[
+        [
+            InlineKeyboardButton(text="🧩 Скиллы",       callback_data="settings:skills"),
+            InlineKeyboardButton(text="🔗 Коннекторы",   callback_data="settings:connectors"),
+        ],
+        [
+            InlineKeyboardButton(text="🧠 Личность",     callback_data="settings:soul"),
+            InlineKeyboardButton(text="🔒 Безопасность", callback_data="settings:safety"),
+        ],
+        [
+            InlineKeyboardButton(text="💳 Подписка",     callback_data="settings:plan"),
+        ],
+    ])
+
+
+def skills_keyboard(skills: dict[str, bool]) -> InlineKeyboardMarkup:
+    buttons = []
+    for skill, enabled in skills.items():
+        icon = "✅" if enabled else "❌"
+        buttons.append([InlineKeyboardButton(
+            text=f"{icon} {skill}",
+            callback_data=f"toggle_skill:{skill}",
+        )])
+    buttons.append([InlineKeyboardButton(text="← Назад", callback_data="settings:back")])
+    return InlineKeyboardMarkup(inline_keyboard=buttons)
+
+
+def safety_keyboard(safety: dict[str, bool]) -> InlineKeyboardMarkup:
+    buttons = []
+    for trigger, enabled in safety.items():
+        icon = "✅" if enabled else "❌"
+        buttons.append([InlineKeyboardButton(
+            text=f"{icon} {trigger}",
+            callback_data=f"toggle_safety:{trigger}",
+        )])
+    buttons.append([InlineKeyboardButton(text="← Назад", callback_data="settings:back")])
+    return InlineKeyboardMarkup(inline_keyboard=buttons)
+
+
+def back_keyboard() -> InlineKeyboardMarkup:
+    return InlineKeyboardMarkup(inline_keyboard=[
+        [InlineKeyboardButton(text="← Назад", callback_data="settings:back")],
+    ])