Add PayU settings and dynamic QR generation

src/main/kotlin/com/android/trisolarisserver/config/PayuSettingsSchemaFix.kt

@@ -0,0 +1,38 @@
+package com.android.trisolarisserver.config
+
+import org.springframework.jdbc.core.JdbcTemplate
+import org.springframework.stereotype.Component
+
+@Component
+class PayuSettingsSchemaFix(
+    private val jdbcTemplate: JdbcTemplate
+) : PostgresSchemaFix(jdbcTemplate) {
+
+    override fun runPostgres(jdbcTemplate: JdbcTemplate) {
+        val hasTable = jdbcTemplate.queryForObject(
+            """
+            select count(*)
+            from information_schema.tables
+            where table_name = 'payu_settings'
+            """.trimIndent(),
+            Int::class.java
+        ) ?: 0
+        if (hasTable == 0) {
+            logger.info("Creating payu_settings table")
+            jdbcTemplate.execute(
+                """
+                create table payu_settings (
+                    id uuid primary key,
+                    property_id uuid not null unique references property(id) on delete cascade,
+                    merchant_key varchar not null,
+                    salt_32 varchar,
+                    salt_256 varchar,
+                    base_url varchar not null,
+                    use_salt_256 boolean not null default true,
+                    updated_at timestamptz not null
+                )
+                """.trimIndent()
+            )
+        }
+    }
+}