v3 : socle Rust (moteur pur, accès trustinWallet, serveur) ; maquette Nuxt rangée dans maquette/

- crates/ld-engine : formule inertielle (parité avec la maquette, garde C),
  coquille / changement de fond, assistant d'édition à règles, composition
  d'un document sous vote permanent (adoptions, aperçus, rivales).
- crates/trustin-access : qui voit, qui ouvre, qui gère les accès.
- crates/ld-server : API axum + SQLite, connexion Ğ1 (client OAuth2 de
  connect.monnaie-libre.fr), invitations, entrée en vigueur automatique,
  signalements de contradiction, traductions éditoriales, publication git,
  taille de la toile lue sur la chaîne.
- seeds/acte-engagement-certification.json : 33 articles, fr + en + es ;
  en vigueur : préambule, E1, E2 (seed a minima).
- maquette/ : frontend, backend et docker v2 déplacés tels quels.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

maquette/backend/alembic/env.py

@@ -0,0 +1,112 @@
+"""Alembic async environment for libreDecision.
+
+Uses asyncpg via SQLAlchemy's async engine.
+All models are imported so that Base.metadata is fully populated
+before autogenerate runs.
+"""
+
+from __future__ import annotations
+
+import asyncio
+from logging.config import fileConfig
+
+from sqlalchemy import pool
+from sqlalchemy.engine import Connection
+from sqlalchemy.ext.asyncio import async_engine_from_config
+
+from alembic import context
+
+# Import settings to get the DATABASE_URL
+from app.config import settings
+
+# Import Base for target_metadata
+from app.database import Base
+
+# Import ALL models so their tables are registered on Base.metadata
+from app.models import (  # noqa: F401
+    DuniterIdentity,
+    Session,
+    Organization,
+    OrgMember,
+    Document,
+    DocumentItem,
+    ItemVersion,
+    Decision,
+    DecisionStep,
+    VoteSession,
+    Vote,
+    Mandate,
+    MandateStep,
+    VotingProtocol,
+    FormulaConfig,
+    QualificationProtocol,
+    SanctuaryEntry,
+    BlockchainCache,
+)
+
+# Alembic Config object
+config = context.config
+
+# Interpret the config file for Python logging
+if config.config_file_name is not None:
+    fileConfig(config.config_file_name)
+
+# Override sqlalchemy.url with the real DATABASE_URL from settings
+config.set_main_option("sqlalchemy.url", settings.DATABASE_URL)
+
+# Target metadata for autogenerate support
+target_metadata = Base.metadata
+
+
+def run_migrations_offline() -> None:
+    """Run migrations in 'offline' mode.
+
+    Configures the context with just a URL and not an Engine.
+    Calls to context.execute() emit the given string to the script output.
+    """
+    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: Connection) -> None:
+    """Run migrations with an active 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 an async engine."""
+    connectable = async_engine_from_config(
+        config.get_section(config.config_ini_section, {}),
+        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()