feat: FASE 0 - Setup progetto TieMeasureFlow

Struttura monorepo completa con server FastAPI e client Flask:
- Server: FastAPI + SQLAlchemy 2.0 async + Alembic migrations
- Client: Flask + blueprints (auth, measure, maker, statistics)
- Database: docker-compose MySQL 8.0 + Alembic async config
- Config: pydantic-settings, TailwindCSS, Flask-Babel i18n
- Piano implementazione completo (18 sezioni, 1600 righe)

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

server/config.py

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+"""TieMeasureFlow Server Configuration."""
+from pathlib import Path
+from pydantic_settings import BaseSettings
+
+
+class Settings(BaseSettings):
+    """Application settings loaded from environment variables."""
+
+    # Database
+    db_host: str = "localhost"
+    db_port: int = 3306
+    db_name: str = "tiemeasureflow"
+    db_user: str = "tmflow"
+    db_password: str = "change_me_in_production"
+
+    # Server
+    server_host: str = "0.0.0.0"
+    server_port: int = 8000
+    server_secret_key: str = "change-this-to-a-random-secret-key"
+    server_cors_origins: str = "http://localhost:5000"
+
+    # File Storage
+    upload_dir: str = "uploads"
+    max_upload_size_mb: int = 50
+
+    # SSL (Production)
+    ssl_certfile: str | None = None
+    ssl_keyfile: str | None = None
+
+    @property
+    def database_url(self) -> str:
+        """Async MySQL connection string."""
+        return (
+            f"mysql+asyncmy://{self.db_user}:{self.db_password}"
+            f"@{self.db_host}:{self.db_port}/{self.db_name}"
+        )
+
+    @property
+    def cors_origins(self) -> list[str]:
+        """Parse CORS origins from comma-separated string."""
+        return [origin.strip() for origin in self.server_cors_origins.split(",")]
+
+    @property
+    def upload_path(self) -> Path:
+        """Absolute path to upload directory."""
+        return Path(__file__).parent / self.upload_dir
+
+    model_config = {"env_file": "../.env", "env_file_encoding": "utf-8"}
+
+
+settings = Settings()

server/database.py

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+"""Async SQLAlchemy database engine and session management."""
+from collections.abc import AsyncGenerator
+
+from sqlalchemy.ext.asyncio import (
+    AsyncSession,
+    async_sessionmaker,
+    create_async_engine,
+)
+from sqlalchemy.orm import DeclarativeBase
+
+from config import settings
+
+# Create async engine
+engine = create_async_engine(
+    settings.database_url,
+    echo=False,
+    pool_size=10,
+    max_overflow=20,
+    pool_recycle=3600,
+)
+
+# Session factory
+async_session_factory = async_sessionmaker(
+    engine,
+    class_=AsyncSession,
+    expire_on_commit=False,
+)
+
+
+class Base(DeclarativeBase):
+    """Base class for all SQLAlchemy models."""
+    pass
+
+
+async def get_db() -> AsyncGenerator[AsyncSession, None]:
+    """Dependency for FastAPI - yields an async database session."""
+    async with async_session_factory() as session:
+        try:
+            yield session
+            await session.commit()
+        except Exception:
+            await session.rollback()
+            raise
+        finally:
+            await session.close()
+
+
+async def init_db() -> None:
+    """Create all tables (dev only - use Alembic in production)."""
+    async with engine.begin() as conn:
+        await conn.run_sync(Base.metadata.create_all)

server/main.py

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+"""TieMeasureFlow Server - FastAPI Entry Point."""
+from contextlib import asynccontextmanager
+from collections.abc import AsyncGenerator
+
+from fastapi import FastAPI
+from fastapi.middleware.cors import CORSMiddleware
+
+from config import settings
+from database import init_db
+
+
+@asynccontextmanager
+async def lifespan(app: FastAPI) -> AsyncGenerator[None, None]:
+    """Application lifespan: startup and shutdown events."""
+    # Startup
+    # Ensure upload directories exist
+    for subdir in ["images", "pdfs", "logos", "reports"]:
+        (settings.upload_path / subdir).mkdir(parents=True, exist_ok=True)
+
+    yield
+
+    # Shutdown (cleanup if needed)
+
+
+app = FastAPI(
+    title="TieMeasureFlow API",
+    description="API per gestione task misurazioni con calibro manuale",
+    version="0.1.0",
+    lifespan=lifespan,
+)
+
+# CORS middleware
+app.add_middleware(
+    CORSMiddleware,
+    allow_origins=settings.cors_origins,
+    allow_credentials=True,
+    allow_methods=["*"],
+    allow_headers=["*"],
+)
+
+
+@app.get("/api/health")
+async def health_check() -> dict:
+    """Health check endpoint."""
+    return {"status": "ok", "service": "TieMeasureFlow API", "version": "0.1.0"}

server/migrations/alembic.ini

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+[alembic]
+script_location = .
+sqlalchemy.url = mysql+asyncmy://tmflow:change_me_in_production@localhost:3306/tiemeasureflow
+
+[loggers]
+keys = root,sqlalchemy,alembic
+
+[handlers]
+keys = console
+
+[formatters]
+keys = generic
+
+[logger_root]
+level = WARN
+handlers = console
+
+[logger_sqlalchemy]
+level = WARN
+handlers =
+qualname = sqlalchemy.engine
+
+[logger_alembic]
+level = INFO
+handlers =
+qualname = alembic
+
+[handler_console]
+class = StreamHandler
+args = (sys.stderr,)
+level = NOTSET
+formatter = generic
+
+[formatter_generic]
+format = %(levelname)-5.5s [%(name)s] %(message)s
+datefmt = %H:%M:%S

server/migrations/env.py

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+"""Alembic environment configuration for async SQLAlchemy."""
+import asyncio
+from logging.config import fileConfig
+
+from alembic import context
+from sqlalchemy import pool
+from sqlalchemy.ext.asyncio import create_async_engine
+
+# Alembic Config object
+config = context.config
+
+# Logging configuration
+if config.config_file_name is not None:
+    fileConfig(config.config_file_name)
+
+# Import all models so Alembic can detect them
+import sys
+from pathlib import Path
+
+sys.path.insert(0, str(Path(__file__).resolve().parent.parent))
+from config import settings
+from database import Base
+
+# Override alembic.ini URL with .env settings (keep in sync)
+config.set_main_option("sqlalchemy.url", settings.database_url)
+
+# Import all models here so they register with Base.metadata
+# from models.user import User
+# from models.recipe import Recipe, RecipeVersion
+# from models.task import RecipeTask, RecipeSubtask
+# from models.measurement import Measurement
+# from models.access_log import AccessLog
+# from models.setting import SystemSetting
+
+target_metadata = Base.metadata
+
+
+def run_migrations_offline() -> None:
+    """Run migrations in 'offline' mode."""
+    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 do_run_migrations(connection):
+    """Run migrations with connection."""
+    context.configure(connection=connection, target_metadata=target_metadata)
+    with context.begin_transaction():
+        context.run_migrations()
+
+
+async def run_async_migrations() -> None:
+    """Run migrations in 'online' mode with async engine."""
+    connectable = create_async_engine(
+        config.get_main_option("sqlalchemy.url"),
+        poolclass=pool.NullPool,
+    )
+
+    async with connectable.connect() as connection:
+        await connection.run_sync(do_run_migrations)
+
+    await connectable.dispose()
+
+
+def run_migrations_online() -> None:
+    """Run migrations in 'online' mode."""
+    asyncio.run(run_async_migrations())
+
+
+if context.is_offline_mode():
+    run_migrations_offline()
+else:
+    run_migrations_online()

server/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 identifiers, used by Alembic.
+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"}

server/requirements.txt

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+# FastAPI + ASGI
+fastapi>=0.110.0
+uvicorn[standard]>=0.30.0
+
+# Database
+sqlalchemy[asyncio]>=2.0.0
+asyncmy>=0.2.0
+alembic>=1.13.0
+
+# Validation
+pydantic>=2.0.0
+pydantic-settings>=2.0.0
+
+# Security
+passlib[bcrypt]>=1.7.0
+bcrypt>=4.0.0
+
+# File handling
+pillow>=10.0.0
+python-multipart>=0.0.6
+
+# Reports
+plotly>=5.0.0
+kaleido>=0.2.0
+weasyprint>=62.0
+
+# Utilities
+python-dotenv>=1.0.0