added client RA bill wise download report

app/models/subcontractor_model.py

@@ -0,0 +1,21 @@
+from app import db
+# from app.services.db_service import db
+from datetime import datetime
+
+class Subcontractor(db.Model):
+    __tablename__ = "subcontractors"
+
+    id = db.Column(db.Integer, primary_key=True)
+    subcontractor_name = db.Column(db.String(255), nullable=False)
+    address = db.Column(db.String(500))
+    gst_no = db.Column(db.String(50))
+    pan_no = db.Column(db.String(50))
+    mobile_no = db.Column(db.String(20))
+    email_id = db.Column(db.String(150))
+    contact_person = db.Column(db.String(150))
+    status = db.Column(db.String(20), default="Active")
+    created_at = db.Column(db.DateTime, default=datetime.today)
+
+    def __repr__(self):
+        return f"<Subcontractor {self.subcontractor_name}>"
+