Add flyway initial schema and database setup

src/main/resources/application.yaml

@@ -1,3 +1,25 @@
 spring:
   application:
     name: lr-openvpn-backend
+
+  datasource:
+    url: jdbc:postgresql://localhost:5432/lr_openvpn
+    username: lr_openvpn
+    password: lr_openvpn_dev
+
+  jpa:
+    hibernate:
+      ddl-auto: validate
+    open-in-view: false
+
+  flyway:
+    enabled: true
+
+server:
+  port: 8080
+
+management:
+  endpoints:
+    web:
+      exposure:
+        include: health,info

src/main/resources/db/migration/V1__initial_schema.sql

@@ -0,0 +1,10 @@
+CREATE TABLE vps_servers (
+    id UUID PRIMARY KEY,
+    name VARCHAR(120) NOT NULL,
+    host VARCHAR(255) NOT NULL,
+    ssh_port INTEGER NOT NULL DEFAULT 22,
+    ssh_user VARCHAR(120) NOT NULL,
+    status VARCHAR(40) NOT NULL DEFAULT 'UNKNOWN',
+    created_at TIMESTAMP NOT NULL DEFAULT now(),
+    updated_at TIMESTAMP NOT NULL DEFAULT now()
+);