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-# EvoSync v3 — Step 1: Environment Setup
-
-## Context
-Rebuilding EvoSync from scratch (Python sync platform, Evotor → VK Market). Repo is clean — no web app exists. Goal for this step: scaffold the project skeleton, wire up Docker, and verify all services start healthy with a working DB connection and a live FastAPI app.
-
----
-
-## Stack
-- **Backend**: FastAPI 0.115 + Uvicorn (Python 3.12)
-- **Task queue**: Celery 5.4 + Redis 7
-- **Database**: MariaDB 11.4 + SQLAlchemy 2.0 + Alembic
-- **Templates**: Jinja2 + Bootstrap 5 CDN
-- **Monitoring**: Celery Flower
-
----
-
-## What gets created in this step
-
-### Root-level files
-- `Dockerfile.web` — single image for web/worker/beat/flower
-- `docker-compose.yml` — 6 services: db, redis, web, worker, beat, flower
-- `requirements.txt` — all pinned dependencies
-- `.env.example` — template with all required vars
-- `alembic.ini` — points to `web/migrations/`
-
-### `web/` package skeleton
-```
-web/
-├── __init__.py
-├── main.py          # FastAPI app, single health route GET /health
-├── config.py        # pydantic-settings Settings (DATABASE_URL, REDIS_URL, SECRET_KEY, …)
-├── database.py      # SQLAlchemy engine + SessionLocal + Base
-├── models/
-│   └── __init__.py  # empty for now
-├── tasks/
-│   ├── __init__.py
-│   └── celery_app.py  # Celery app factory, broker=REDIS_URL, no beat schedule yet
-└── migrations/
-    ├── env.py         # Alembic env wired to web.database.Base
-    ├── script.py.mako
-    └── versions/
-        └── 0001_initial.py  # empty migration (no tables yet)
-```
-
-### `tests/`
-```
-tests/
-├── conftest.py     # SQLite in-memory engine, db_session fixture
-└── test_health.py  # GET /health returns 200 {"status": "ok"}
-```
-
----
-
-## docker-compose services
-
-| Service | Image | Port | Command |
-|---------|-------|------|---------|
-| `db` | mariadb:11.4 | — | default, healthcheck |
-| `redis` | redis:7-alpine | — | `redis-server --save 60 1`, healthcheck |
-| `web` | Dockerfile.web | 8080→8000 | `alembic upgrade head && uvicorn web.main:app --host 0.0.0.0 --port 8000` |
-| `worker` | Dockerfile.web | — | `celery -A web.tasks.celery_app worker --loglevel=info` |
-| `beat` | Dockerfile.web | — | `celery -A web.tasks.celery_app beat --scheduler celery.beat:PersistentScheduler --schedule /tmp/celerybeat-schedule` |
-| `flower` | Dockerfile.web | 5555 | `celery -A web.tasks.celery_app flower --port=5555` |
-
-- `web` depends on `db` and `redis` being healthy before starting
-- `worker` and `beat` depend on `redis` being healthy
-- Single `Dockerfile.web` image, `command:` selects role
-
----
-
-## Dockerfile.web
-```dockerfile
-FROM python:3.12-slim
-ENV PYTHONDONTWRITEBYTECODE=1 PYTHONUNBUFFERED=1 PIP_NO_CACHE_DIR=1
-WORKDIR /app
-RUN apt-get update && apt-get install -y --no-install-recommends curl && rm -rf /var/lib/apt/lists/*
-COPY requirements.txt .
-RUN pip install --upgrade pip && pip install -r requirements.txt
-COPY . .
-CMD ["uvicorn", "web.main:app", "--host", "0.0.0.0", "--port", "8000"]
-```
-
----
-
-## requirements.txt
-```
-fastapi==0.115.5
-uvicorn[standard]==0.32.1
-python-multipart==0.0.12
-jinja2==3.1.4
-sqlalchemy==2.0.36
-alembic==1.14.0
-pymysql==1.1.1
-cryptography>=44.0.0
-passlib[bcrypt]==1.7.4
-bcrypt==4.2.1
-pydantic-settings==2.6.1
-httpx==0.28.1
-celery[redis]==5.4.0
-redis==5.2.1
-flower==2.0.1
-python-json-logger==3.2.1
-pytest==8.3.4
-pytest-asyncio==0.24.0
-pytest-cov==6.0.0
-factory-boy==3.3.1
-```
-
----
-
-## Verification checklist
-1. `docker compose up --build` → all 6 services reach healthy/running state
-2. `curl http://localhost:8080/health` → `{"status": "ok"}`
-3. Flower at `http://localhost:5555` → shows worker connected
-4. `docker compose exec web alembic upgrade head` → no error
-5. `pytest tests/` → `test_health.py` passes