feat: add unit and integration tests for rental management domain

- Introduced RentPaymentCorrectionTest and RentPaymentTest to validate payment and refund logic.
- Added PhoneNumberTest to ensure proper normalization of phone numbers.
- Created TenantTest to verify attachment management and tenant referencing.
- Implemented ReplacementRentalApiJourneyIT for end-to-end testing of rental and payment workflows.
- Documented architectural decisions in ADR-0014, emphasizing strict DDD boundaries and transaction management.

compose.yml

@@ -2,6 +2,16 @@ services:
   mongodb:
     image: mongo:8.0
     container_name: lmnp-mongodb
+    entrypoint:
+      - /bin/bash
+      - -c
+      - |
+        if [ ! -s /data/configdb/keyfile ]; then
+          umask 077
+          openssl rand -base64 756 > /data/configdb/keyfile
+        fi
+        chmod 400 /data/configdb/keyfile
+        exec docker-entrypoint.sh mongod --replSet rs0 --keyFile /data/configdb/keyfile --bind_ip_all
     ports:
       - "27017:27017"
     environment:
@@ -9,12 +19,21 @@ services:
       MONGO_INITDB_ROOT_PASSWORD: adminpassword
     volumes:
       - mongodb_data:/data/db
+      - mongodb_config:/data/configdb
     healthcheck:
-      test: ["CMD", "mongosh", "--username", "admin", "--password", "adminpassword", "--eval", "db.adminCommand('ping')"]
+      test:
+        - CMD-SHELL
+        - >-
+          mongosh --quiet --host localhost
+          --username "$${MONGO_INITDB_ROOT_USERNAME}"
+          --password "$${MONGO_INITDB_ROOT_PASSWORD}"
+          --authenticationDatabase admin
+          --eval 'try { rs.status() } catch (error) { rs.initiate({_id: "rs0", members: [{_id: 0, host: "mongodb:27017"}]}) }; db.hello().isWritablePrimary'
+          | grep -q true
       interval: 5s
-      timeout: 5s
-      retries: 5
-#      - ./mongo-init.js:/docker-entrypoint-initdb.d/mongo-init.js:ro
+      timeout: 10s
+      retries: 10
+      start_period: 20s
 
   backend:
     build:
@@ -24,7 +43,7 @@ services:
     ports:
       - "8080:8080"
     environment:
-      SPRING_DATA_MONGODB_URI: mongodb://admin:adminpassword@mongodb:27017/lmnp?authSource=admin
+      SPRING_DATA_MONGODB_URI: mongodb://admin:adminpassword@mongodb:27017/lmnp?authSource=admin&replicaSet=rs0&directConnection=true
       OIDC_ISSUER_URI: ${OIDC_ISSUER_URI:-http://localhost:8090/realms/voidAuth}
       OIDC_CLIENT_ID: ${OIDC_CLIENT_ID:-lmnp-client}
       OIDC_CLIENT_SECRET: ${OIDC_CLIENT_SECRET:-lmnp-secret}
@@ -47,6 +66,7 @@ services:
 
 volumes:
   mongodb_data:
+  mongodb_config:
   attachment_data:
 
 networks: