FlotillasGPS - Sistema completo de monitoreo de flotillas GPS

Sistema completo para monitoreo y gestion de flotas de vehiculos con:
- Backend FastAPI con PostgreSQL/TimescaleDB
- Frontend React con TypeScript y TailwindCSS
- App movil React Native con Expo
- Soporte para dispositivos GPS, Meshtastic y celulares
- Video streaming en vivo con MediaMTX
- Geocercas, alertas, viajes y reportes
- Autenticacion JWT y WebSockets en tiempo real

Documentacion completa y guias de usuario incluidas.

backend/alembic/env.py

@@ -0,0 +1,137 @@
+"""
+Alembic environment configuration for Adan Fleet Monitor.
+
+Configurado para:
+- SQLAlchemy async (asyncpg)
+- TimescaleDB hypertables
+- Migraciones automáticas desde modelos
+"""
+
+import asyncio
+from logging.config import fileConfig
+
+from alembic import context
+from sqlalchemy import pool, text
+from sqlalchemy.engine import Connection
+from sqlalchemy.ext.asyncio import async_engine_from_config
+
+from app.core.config import settings
+from app.models.base import Base
+
+# Import all models so they are registered with Base.metadata
+from app.models import (
+    Usuario,
+    GrupoVehiculos,
+    Conductor,
+    Vehiculo,
+    Dispositivo,
+    Ubicacion,
+    Viaje,
+    Parada,
+    TipoAlerta,
+    Alerta,
+    Geocerca,
+    POI,
+    CargaCombustible,
+    TipoMantenimiento,
+    Mantenimiento,
+    Camara,
+    Grabacion,
+    EventoVideo,
+    Mensaje,
+    Configuracion,
+)
+
+# this is the Alembic Config object, which provides
+# access to the values within the .ini file in use.
+config = context.config
+
+# Interpret the config file for Python logging.
+if config.config_file_name is not None:
+    fileConfig(config.config_file_name)
+
+# add your model's MetaData object here
+target_metadata = Base.metadata
+
+
+def get_url() -> str:
+    """
+    Obtiene la URL de la base de datos desde la configuración.
+    """
+    return settings.DATABASE_URL
+
+
+def run_migrations_offline() -> None:
+    """
+    Run migrations in 'offline' mode.
+
+    This configures the context with just a URL
+    and not an Engine, though an Engine is acceptable
+    here as well. By skipping the Engine creation
+    we don't even need a DBAPI to be available.
+
+    Calls to context.execute() here emit the given string to the
+    script output.
+    """
+    url = get_url()
+    context.configure(
+        url=url,
+        target_metadata=target_metadata,
+        literal_binds=True,
+        dialect_opts={"paramstyle": "named"},
+        compare_type=True,
+        compare_server_default=True,
+    )
+
+    with context.begin_transaction():
+        context.run_migrations()
+
+
+def do_run_migrations(connection: Connection) -> None:
+    """
+    Run migrations with the given connection.
+    """
+    context.configure(
+        connection=connection,
+        target_metadata=target_metadata,
+        compare_type=True,
+        compare_server_default=True,
+    )
+
+    with context.begin_transaction():
+        context.run_migrations()
+
+
+async def run_async_migrations() -> None:
+    """
+    Run migrations in 'online' mode with async engine.
+
+    In this scenario we need to create an Engine
+    and associate a connection with the context.
+    """
+    configuration = config.get_section(config.config_ini_section)
+    configuration["sqlalchemy.url"] = get_url()
+
+    connectable = async_engine_from_config(
+        configuration,
+        prefix="sqlalchemy.",
+        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()