fix docker scraping

improve batch sync

add postgres upsert

fix sync locking

improve listing sync

speed up scraper

clean up project

prepare for github

update docker setup

alembic/versions/001_initial.py

@@ -1,9 +1,4 @@
-"""Initial schema — cars, images, sync_runs
-
-Revision ID: 001_initial
-Revises:
-Create Date: 2026-04-08
-"""
+# Начальная схема: cars, images, sync_runs
 from typing import Sequence, Union
 
 from alembic import op
@@ -16,7 +11,7 @@ depends_on: Union[str, Sequence[str], None] = None
 
 
 def upgrade() -> None:
-    # --- cars ---
+    # Таблица cars — аукционные машины с IAAI
     op.create_table(
         "cars",
         sa.Column("id", sa.BigInteger, primary_key=True, autoincrement=True),
@@ -53,7 +48,7 @@ def upgrade() -> None:
     op.create_index("ix_cars_origin_url", "cars", ["origin_url"])
     op.create_index("ix_cars_origin_id", "cars", ["origin_id"], unique=True)
 
-    # --- images ---
+    # Таблица images — изображения машин
     op.create_table(
         "images",
         sa.Column("id", sa.BigInteger, primary_key=True, autoincrement=True),
@@ -63,7 +58,7 @@ def upgrade() -> None:
         sa.Column("car_id", sa.Integer, sa.ForeignKey("cars.id", ondelete="CASCADE"), nullable=False),
     )
 
-    # --- sync_runs ---
+    # Таблица sync_runs — логирование синхронизаций
     op.create_table(
         "sync_runs",
         sa.Column("id", sa.BigInteger, primary_key=True, autoincrement=True),