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>

.env.example

@@ -0,0 +1,30 @@
+# ===========================
+# TieMeasureFlow Configuration
+# ===========================
+
+# --- Database ---
+DB_HOST=localhost
+DB_PORT=3306
+DB_NAME=tiemeasureflow
+DB_USER=tmflow
+DB_PASSWORD=change_me_in_production
+
+# --- Server ---
+SERVER_HOST=0.0.0.0
+SERVER_PORT=8000
+SERVER_SECRET_KEY=change-this-to-a-random-secret-key
+SERVER_CORS_ORIGINS=http://localhost:5000
+
+# --- Client ---
+CLIENT_HOST=0.0.0.0
+CLIENT_PORT=5000
+CLIENT_SECRET_KEY=change-this-to-another-random-secret-key
+API_SERVER_URL=http://localhost:8000
+
+# --- File Storage ---
+UPLOAD_DIR=server/uploads
+MAX_UPLOAD_SIZE_MB=50
+
+# --- HTTPS (Production) ---
+# SSL_CERTFILE=/path/to/cert.pem
+# SSL_KEYFILE=/path/to/key.pem