feat: condensed user get endpoints

The process also added improved ORM relationships for multiple models.

src/user/models.py

@@ -4,10 +4,13 @@ Database models for user module
 Models:
  - User - id[pk], email, first_name, last_name, oidc_id
 """
+from collections import defaultdict
+
 from sqlalchemy import Column, Integer, String
 from sqlalchemy.orm import relationship
 
 from src.database import Base
+from src.iam.models import Group
 
 
 class User(Base):
@@ -19,8 +22,25 @@ class User(Base):
 	last_name = Column(String)
 	oidc_id = Column(String, index=True, unique=True)
 
-	organisations = relationship(
+	organisation_rel = relationship(
 		"Organisation",
 		secondary="orgusers",
-		back_populates="users"
+		back_populates="user_rel"
 	)
+
+	@property
+	def organisations(self):
+		return [org.name for org in self.organisation_rel]
+
+	group_rel = relationship(
+		"Group",
+		secondary="user_groups",
+		back_populates="user_rel"
+	)
+
+	@property
+	def groups(self):
+		result = defaultdict(list)
+		for group in self.group_rel:
+			result[group.org_rel.name].append(group.name)
+		return dict(result)