This commit addresses configuration inconsistencies between CI/CD pipeline (#56)

and TestContainers setup that would prevent PostgreSQL integration tests
  from running correctly when re-enabled.

  ## Changes Made

  ### 1. Fixed Flyway Migration Paths
  - Files: application-testcontainers-postgresql.yml (datacustodian & thirdparty)
  - Before: classpath:db/migration/postgresql (non-existent path)
  - After: classpath:db/migration,classpath:db/vendor/postgres
  - Impact: Integration tests can now find and execute Flyway migrations

  ### 2. Upgraded PostgreSQL Version in CI/CD
  - File: .github/workflows/ci.yml
  - Before: postgres:15
  - After: postgres:18
  - Impact: Aligns CI/CD with TestContainers environment

  ### 3. Updated Test Documentation
  - File: DataCustodianApplicationPostgresTest.java
  - Updated @disabled annotation to reflect:
    - Configuration issues (Issue #55) are now RESOLVED
    - UUID type mismatch (Issue #53) still blocks test execution
    - Tests will be re-enabled after MULTI_PHASE schema compliance plan

  ## Test Results

  Verified that fixing Issue #55 configuration problems does NOT resolve
  Issue #53 UUID type mismatch. The test still fails with:

  Schema validation: wrong column type encountered in column [id];
  found [bpchar (Types#CHAR)], but expecting [uuid (Types#UUID)]

  This confirms Issue #53 requires V4 migration script to convert CHAR(36)
  columns to native UUID type, which will be implemented after MULTI_PHASE
  schema compliance plan completes.

  ## Related Issues

  - Fixes #55 - PostgreSQL configuration mismatches
  - Ref #53 - UUID CHAR(36) type mismatch (still blocking)

  🤖 Generated with [Claude Code](https://claude.com/claude-code)

  Co-Authored-By: Claude Sonnet 4.5 <[email protected]>"

Author: dfcoffin

.github/workflows/ci.yml

@@ -30,7 +30,7 @@ jobs:
           --health-retries=3
 
       postgres:
-        image: postgres:15
+        image: postgres:18
         env:
           POSTGRES_PASSWORD: postgres
           POSTGRES_DB: test_db

openespi-common/src/test/java/org/greenbuttonalliance/espi/common/migration/DataCustodianApplicationPostgresTest.java

@@ -27,9 +27,9 @@
 import org.springframework.test.context.ActiveProfiles;
 import org.springframework.test.context.DynamicPropertyRegistry;
 import org.springframework.test.context.DynamicPropertySource;
-import org.testcontainers.postgresql.PostgreSQLContainer;
 import org.testcontainers.junit.jupiter.Container;
 import org.testcontainers.junit.jupiter.Testcontainers;
+import org.testcontainers.postgresql.PostgreSQLContainer;
 
 import java.sql.Connection;
 import java.sql.ResultSet;
@@ -52,8 +52,10 @@
 @Disabled("Temporarily disabled due to Issue #53: PostgreSQL UUID CHAR(36) type mismatch. " +
           "JPA entities use @GeneratedValue(strategy = GenerationType.UUID) expecting native UUID type, " +
           "but Flyway migrations use CHAR(36) for MySQL/H2 compatibility. " +
-          "This will be resolved after MULTI_PHASE schema compliance plan completes. " +
-          "See: https://github.com/GreenButtonAlliance/OpenESPI-GreenButton-Java/issues/53")
+          "Configuration issues (Issue #55) have been resolved - Flyway paths and PostgreSQL version are correct. " +
+          "This test will be re-enabled after MULTI_PHASE schema compliance plan completes and UUID conversion is implemented. " +
+          "See: https://github.com/GreenButtonAlliance/OpenESPI-GreenButton-Java/issues/53 " +
+          "and https://github.com/GreenButtonAlliance/OpenESPI-GreenButton-Java/issues/55")
 class DataCustodianApplicationPostgresTest {
 
     @Container

openespi-datacustodian/src/test/resources/application-testcontainers-postgresql.yml

@@ -26,7 +26,7 @@ spring:
   flyway:
     enabled: true
     baseline-on-migrate: true
-    locations: classpath:db/migration/postgresql
+    locations: classpath:db/migration,classpath:db/vendor/postgres
 
   # Faster testing configuration
   main:

openespi-thirdparty/src/test/resources/application-testcontainers-postgresql.yml

@@ -26,7 +26,7 @@ spring:
   flyway:
     enabled: true
     baseline-on-migrate: true
-    locations: classpath:db/migration/postgresql
+    locations: classpath:db/migration,classpath:db/vendor/postgres
 
   # Faster testing configuration
   main: