chore: add ruff and ty, fix linting

- Add ruff (line-length 88) and ty to dev dependencies
- Fix all ruff linting errors
- Configure ty to ignore nullable type warnings
- Update AGENTS.md with linting instructions

src/database.py

@@ -1,9 +1,9 @@
 import sqlite3
+from collections.abc import Generator
 from contextlib import contextmanager
 from dataclasses import dataclass
 from datetime import datetime
 from enum import Enum
-from typing import Generator
 
 from src.config import DB_PATH
 from src.logger import logger
@@ -171,7 +171,8 @@ def get_or_create_user(telegram_id: int) -> User:
             )
 
         cursor = conn.execute(
-            "INSERT INTO users (telegram_id) VALUES (?) RETURNING id, telegram_id, created_at",
+            "INSERT INTO users (telegram_id) VALUES (?) "
+            "RETURNING id, telegram_id, created_at",
             (telegram_id,),
         )
         row = cursor.fetchone()
@@ -244,10 +245,11 @@ def get_all_scenarios() -> list[Scenario]:
 
 
 def create_replicas(scenario_id: str, replicas: list[tuple[int, int, str]]) -> None:
-    """Создаёт реплики для сценария. replicas: [(speaker_id, replica_index, text), ...]"""
+    """Создаёт реплики. replicas: [(speaker_id, replica_index, text), ...]"""
     with get_connection() as conn:
         conn.executemany(
-            "INSERT INTO replicas (scenario_id, speaker_id, replica_index, text) VALUES (?, ?, ?, ?)",
+            "INSERT INTO replicas (scenario_id, speaker_id, replica_index, text) "
+            "VALUES (?, ?, ?, ?)",
             [
                 (scenario_id, speaker_id, idx, text)
                 for speaker_id, idx, text in replicas
@@ -300,7 +302,8 @@ def get_track_speaker_ids(scenario_id: str) -> list[int]:
     """Получает список speaker_id (дорожек) в сценарии."""
     with get_connection() as conn:
         cursor = conn.execute(
-            "SELECT DISTINCT speaker_id FROM replicas WHERE scenario_id = ? ORDER BY speaker_id",
+            "SELECT DISTINCT speaker_id FROM replicas "
+            "WHERE scenario_id = ? ORDER BY speaker_id",
             (scenario_id,),
         )
         return [row["speaker_id"] for row in cursor.fetchall()]
@@ -314,7 +317,8 @@ def create_recording(user_id: int, scenario_id: str, replica_index: int) -> Reco
     with get_connection() as conn:
         cursor = conn.execute(
             "INSERT INTO recordings (user_id, scenario_id, replica_index) "
-            "VALUES (?, ?, ?) RETURNING id, user_id, scenario_id, replica_index, created_at",
+            "VALUES (?, ?, ?) "
+            "RETURNING id, user_id, scenario_id, replica_index, created_at",
             (user_id, scenario_id, replica_index),
         )
         row = cursor.fetchone()
@@ -356,8 +360,9 @@ def get_user_recordings_for_scenario(user_id: int, scenario_id: str) -> list[Rec
     """Получает все записи пользователя для сценария."""
     with get_connection() as conn:
         cursor = conn.execute(
-            "SELECT id, user_id, scenario_id, replica_index, created_at FROM recordings "
-            "WHERE user_id = ? AND scenario_id = ? ORDER BY replica_index",
+            "SELECT id, user_id, scenario_id, replica_index, created_at "
+            "FROM recordings WHERE user_id = ? AND scenario_id = ? "
+            "ORDER BY replica_index",
             (user_id, scenario_id),
         )
         return [