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/config.py

@@ -0,0 +1,33 @@
+from pydantic_settings import BaseSettings
+from pathlib import Path
+
+
+class Settings(BaseSettings):
+    APP_NAME: str = "Glibredecision"
+    DEBUG: bool = True
+
+    # Database
+    DATABASE_URL: str = "postgresql+asyncpg://glibredecision:change-me-in-production@localhost:5432/glibredecision"
+
+    # Auth
+    SECRET_KEY: str = "change-me-in-production-with-a-real-secret-key"
+    CHALLENGE_EXPIRE_SECONDS: int = 300
+    TOKEN_EXPIRE_HOURS: int = 24
+
+    # Duniter V2 RPC
+    DUNITER_RPC_URL: str = "wss://gdev.p2p.legal/ws"
+
+    # IPFS
+    IPFS_API_URL: str = "http://localhost:5001"
+    IPFS_GATEWAY_URL: str = "http://localhost:8080"
+
+    # CORS
+    CORS_ORIGINS: list[str] = ["http://localhost:3002"]
+
+    # Paths
+    BASE_DIR: Path = Path(__file__).resolve().parent.parent
+
+    model_config = {"env_file": ".env", "env_file_encoding": "utf-8"}
+
+
+settings = Settings()