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

@@ -0,0 +1,51 @@
+"""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()