Add EvoSync v3 environment scaffold

FastAPI + Celery + Redis + MariaDB stack with 6-service docker-compose.
Includes project skeleton (config, database, models, tasks, migrations)
and health endpoint with passing test.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

web/config.py

@@ -0,0 +1,31 @@
+from pydantic_settings import BaseSettings
+
+
+class Settings(BaseSettings):
+    DATABASE_URL: str = "mysql+pymysql://evosync:evosync@db:3306/evosync"
+    REDIS_URL: str = "redis://redis:6379/0"
+    SECRET_KEY: str = "change-me-in-production"
+    BASE_URL: str = "http://localhost:8000"
+    PASSWORD_RESET_EXPIRE_MINUTES: int = 60
+
+    EVOTOR_APP_ID: str = ""
+    EVOTOR_WEBHOOK_SECRET: str = ""
+
+    JIVOSITE_WIDGET_ID: str = ""
+    VK_DEFAULT_PHOTO_PATH: str = "/app/default_product.png"
+    VK_API_VERSION: str = "5.199"
+
+    CATALOG_REFRESH_INTERVAL_SECONDS: int = 3600
+
+    FLOWER_USER: str = "admin"
+    FLOWER_PASSWORD: str = "changeme"
+
+    DB_ROOT_PASSWORD: str = ""
+    DB_NAME: str = ""
+    DB_USER: str = ""
+    DB_PASSWORD: str = ""
+
+    model_config = {"env_file": ".env", "case_sensitive": False, "extra": "ignore"}
+
+
+settings = Settings()

web/database.py

@@ -0,0 +1,24 @@
+from sqlalchemy import create_engine
+from sqlalchemy.orm import DeclarativeBase, sessionmaker
+
+from web.config import settings
+
+engine = create_engine(
+    settings.DATABASE_URL,
+    pool_pre_ping=True,
+    pool_recycle=3600,
+)
+
+SessionLocal = sessionmaker(autocommit=False, autoflush=False, bind=engine)
+
+
+class Base(DeclarativeBase):
+    pass
+
+
+def get_db():
+    db = SessionLocal()
+    try:
+        yield db
+    finally:
+        db.close()

web/main.py

@@ -0,0 +1,19 @@
+import logging
+
+from fastapi import FastAPI
+
+try:
+    from pythonjsonlogger import jsonlogger
+    handler = logging.StreamHandler()
+    handler.setFormatter(jsonlogger.JsonFormatter("%(asctime)s %(levelname)s %(name)s %(message)s"))
+    logging.root.addHandler(handler)
+except ImportError:
+    logging.basicConfig(level=logging.INFO)
+logging.root.setLevel(logging.INFO)
+
+app = FastAPI(title="EvoSync")
+
+
+@app.get("/health")
+async def health():
+    return {"status": "ok"}

web/migrations/env.py

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+from logging.config import fileConfig
+
+from alembic import context
+from sqlalchemy import engine_from_config, pool
+
+from web.database import Base
+import web.models  # noqa: F401 — ensure all models are imported before autogenerate
+
+config = context.config
+
+if config.config_file_name is not None:
+    fileConfig(config.config_file_name)
+
+target_metadata = Base.metadata
+
+
+def run_migrations_offline() -> None:
+    url = config.get_main_option("sqlalchemy.url")
+    context.configure(
+        url=url,
+        target_metadata=target_metadata,
+        literal_binds=True,
+        dialect_opts={"paramstyle": "named"},
+    )
+    with context.begin_transaction():
+        context.run_migrations()
+
+
+def run_migrations_online() -> None:
+    from web.config import settings
+
+    configuration = config.get_section(config.config_ini_section, {})
+    configuration["sqlalchemy.url"] = settings.DATABASE_URL
+
+    connectable = engine_from_config(
+        configuration,
+        prefix="sqlalchemy.",
+        poolclass=pool.NullPool,
+    )
+
+    with connectable.connect() as connection:
+        context.configure(connection=connection, target_metadata=target_metadata)
+        with context.begin_transaction():
+            context.run_migrations()
+
+
+if context.is_offline_mode():
+    run_migrations_offline()
+else:
+    run_migrations_online()

web/migrations/script.py.mako

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+"""${message}
+
+Revision ID: ${up_revision}
+Revises: ${down_revision | comma,n}
+Create Date: ${create_date}
+
+"""
+from typing import Sequence, Union
+
+from alembic import op
+import sqlalchemy as sa
+${imports if imports else ""}
+
+revision: str = ${repr(up_revision)}
+down_revision: Union[str, None] = ${repr(down_revision)}
+branch_labels: Union[str, Sequence[str], None] = ${repr(branch_labels)}
+depends_on: Union[str, Sequence[str], None] = ${repr(depends_on)}
+
+
+def upgrade() -> None:
+    ${upgrades if upgrades else "pass"}
+
+
+def downgrade() -> None:
+    ${downgrades if downgrades else "pass"}

web/migrations/versions/0001_initial.py

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+"""initial
+
+Revision ID: 0001
+Revises:
+Create Date: 2026-04-27
+
+"""
+from typing import Sequence, Union
+
+revision: str = "0001"
+down_revision: Union[str, None] = None
+branch_labels: Union[str, Sequence[str], None] = None
+depends_on: Union[str, Sequence[str], None] = None
+
+
+def upgrade() -> None:
+    pass
+
+
+def downgrade() -> None:
+    pass

web/tasks/celery_app.py

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+from celery import Celery
+
+from web.config import settings
+
+celery_app = Celery("evosync", broker=settings.REDIS_URL, backend=settings.REDIS_URL)
+
+celery_app.conf.update(
+    task_serializer="json",
+    result_serializer="json",
+    accept_content=["json"],
+    timezone="Europe/Moscow",
+    enable_utc=True,
+    task_track_started=True,
+    task_acks_late=True,
+    worker_prefetch_multiplier=1,
+    broker_connection_retry_on_startup=True,
+    task_routes={
+        "web.tasks.sync.*": {"queue": "sync"},
+        "web.tasks.health.*": {"queue": "health"},
+        "web.tasks.catalog.*": {"queue": "default"},
+    },
+)