chore: Update application properties and add production configuration

src/main/resources/application.properties

@@ -1 +0,0 @@
-spring.application.name=backend

src/main/resources/application.yaml

@@ -0,0 +1,21 @@
+spring:
+  profiles:
+    active: dev # Set 'dev' profile as the active profile for development
+
+  datasource:
+    url: jdbc:h2:mem:testdb
+    driver-class-name: org.h2.Driver
+    username: sa
+    password: password
+
+  h2:
+    console:
+      enabled: true # Enable H2 console for testing at http://localhost:8080/h2-console
+
+  jpa:
+    hibernate:
+      ddl-auto: update # Automatically create/update schema
+    show-sql: true
+    properties:
+      hibernate:
+        dialect: org.hibernate.dialect.H2Dialect

src/main/resources/production.yaml

@@ -0,0 +1,14 @@
+spring:
+  datasource:
+    url: jdbc:postgresql://<YOUR_PROD_DB_URL>:5432/<YOUR_DB_NAME>
+    driver-class-name: org.postgresql.Driver
+    username: <YOUR_DB_USERNAME>
+    password: <YOUR_DB_PASSWORD>
+
+  jpa:
+    hibernate:
+      ddl-auto: update
+    show-sql: false
+    properties:
+      hibernate:
+        dialect: org.hibernate.dialect.PostgreSQLDialect