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/schemas/vote.py

@@ -0,0 +1,89 @@
+from __future__ import annotations
+
+from datetime import datetime
+from uuid import UUID
+
+from pydantic import BaseModel, ConfigDict, Field
+
+
+# ── Vote Session ─────────────────────────────────────────────────
+
+
+class VoteSessionCreate(BaseModel):
+    """Payload for opening a new vote session."""
+
+    decision_id: UUID | None = None
+    item_version_id: UUID | None = None
+    voting_protocol_id: UUID = Field(..., description="ID of the voting protocol to apply")
+
+
+class VoteSessionOut(BaseModel):
+    """Full vote session representation including tallies."""
+
+    model_config = ConfigDict(from_attributes=True)
+
+    id: UUID
+    decision_id: UUID | None = None
+    item_version_id: UUID | None = None
+    voting_protocol_id: UUID
+
+    # Snapshot at session start
+    wot_size: int
+    smith_size: int
+    techcomm_size: int
+
+    # Dates
+    starts_at: datetime
+    ends_at: datetime
+
+    # Status
+    status: str
+
+    # Tallies
+    votes_for: int
+    votes_against: int
+    votes_total: int
+    smith_votes_for: int
+    techcomm_votes_for: int
+    threshold_required: float
+    result: str | None = None
+
+    # Chain recording
+    chain_recorded: bool
+    chain_tx_hash: str | None = None
+
+    created_at: datetime
+
+
+# ── Vote ─────────────────────────────────────────────────────────
+
+
+class VoteCreate(BaseModel):
+    """Payload for casting a vote (with cryptographic proof)."""
+
+    session_id: UUID
+    vote_value: str = Field(..., max_length=32, description="for, against, or nuanced level")
+    nuanced_level: int | None = Field(default=None, ge=0, le=5, description="0-5 for nuanced votes")
+    comment: str | None = None
+    signature: str = Field(..., description="Ed25519 signature of signed_payload")
+    signed_payload: str = Field(..., description="The exact payload that was signed")
+
+
+class VoteOut(BaseModel):
+    """Full vote representation."""
+
+    model_config = ConfigDict(from_attributes=True)
+
+    id: UUID
+    session_id: UUID
+    voter_id: UUID
+    vote_value: str
+    nuanced_level: int | None = None
+    comment: str | None = None
+    signature: str
+    signed_payload: str
+    voter_wot_status: str
+    voter_is_smith: bool
+    voter_is_techcomm: bool
+    is_active: bool
+    created_at: datetime