initial skeleton: FastAPI + SQLAlchemy + schema rendicontazione + template RE-START

app/models.py

@@ -0,0 +1,34 @@
+"""
+ORM models per rendicontazione-api.
+Schema: gepafin_rendic (stesso DB del BE Gepafin sandbox).
+"""
+import uuid
+from datetime import datetime
+from sqlalchemy import Column, Integer, String, Text, DateTime, ForeignKey, UniqueConstraint
+from sqlalchemy.dialects.postgresql import UUID, JSONB
+from sqlalchemy.sql import func
+from .db import Base
+
+
+class CallRemissionSchema(Base):
+    """
+    Schema di rendicontazione per un bando. Uno per call_id.
+    status: DRAFT (modificabile) -> PUBLISHED (visibile ai beneficiari).
+    """
+    __tablename__ = "call_remission_schema"
+    __table_args__ = (
+        UniqueConstraint("call_id", name="uq_call_remission_schema_call_id"),
+        {"schema": "gepafin_rendic"},
+    )
+
+    id = Column(UUID(as_uuid=True), primary_key=True, default=uuid.uuid4)
+    call_id = Column(Integer, nullable=False, unique=True)
+    schema_version = Column(Integer, nullable=False, default=1)
+    status = Column(String(32), nullable=False, default="DRAFT")
+    schema_json = Column(JSONB, nullable=False)
+
+    created_by = Column(Integer, nullable=False)
+    created_at = Column(DateTime(timezone=True), nullable=False, server_default=func.now())
+    updated_at = Column(DateTime(timezone=True), nullable=False, server_default=func.now(), onupdate=func.now())
+    published_at = Column(DateTime(timezone=True), nullable=True)
+    published_by = Column(Integer, nullable=True)