Sprint 1 : scaffolding complet de Glibredecision

Plateforme de decisions collectives pour Duniter/G1.
Backend FastAPI async + PostgreSQL (14 tables, 8 routers, 6 services,
moteur de vote avec formule d'inertie WoT/Smith/TechComm).
Frontend Nuxt 4 + Nuxt UI v3 + Pinia (9 pages, 5 stores).
Infrastructure Docker + Woodpecker CI + Traefik.
Documentation technique et utilisateur (15 fichiers).
Seed : Licence G1, Engagement Forgeron v2.0.0, 4 protocoles de vote.
30 tests unitaires (formules, mode params, vote nuance) -- tous verts.

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

backend/app/models/user.py

@@ -0,0 +1,35 @@
+import uuid
+from datetime import datetime
+
+from sqlalchemy import String, Boolean, DateTime, ForeignKey, func
+from sqlalchemy.dialects.postgresql import UUID
+from sqlalchemy.orm import Mapped, mapped_column, relationship
+
+from app.database import Base
+
+
+class DuniterIdentity(Base):
+    __tablename__ = "duniter_identities"
+
+    id: Mapped[uuid.UUID] = mapped_column(UUID(as_uuid=True), primary_key=True, default=uuid.uuid4)
+    address: Mapped[str] = mapped_column(String(64), unique=True, nullable=False, index=True)
+    display_name: Mapped[str | None] = mapped_column(String(128))
+    wot_status: Mapped[str] = mapped_column(String(32), default="unknown")  # member, pending, revoked, unknown
+    is_smith: Mapped[bool] = mapped_column(Boolean, default=False)
+    is_techcomm: Mapped[bool] = mapped_column(Boolean, default=False)
+    created_at: Mapped[datetime] = mapped_column(DateTime(timezone=True), server_default=func.now())
+    updated_at: Mapped[datetime] = mapped_column(DateTime(timezone=True), server_default=func.now(), onupdate=func.now())
+
+    sessions: Mapped[list["Session"]] = relationship(back_populates="identity", cascade="all, delete-orphan")
+
+
+class Session(Base):
+    __tablename__ = "sessions"
+
+    id: Mapped[uuid.UUID] = mapped_column(UUID(as_uuid=True), primary_key=True, default=uuid.uuid4)
+    token_hash: Mapped[str] = mapped_column(String(128), unique=True, nullable=False, index=True)
+    identity_id: Mapped[uuid.UUID] = mapped_column(ForeignKey("duniter_identities.id"), nullable=False)
+    created_at: Mapped[datetime] = mapped_column(DateTime(timezone=True), server_default=func.now())
+    expires_at: Mapped[datetime] = mapped_column(DateTime(timezone=True), nullable=False)
+
+    identity: Mapped["DuniterIdentity"] = relationship(back_populates="sessions")