fix: resolve service.impl test failures - add ESV context, exclude ECJ for Java 26, update Java version to 26

Agent-Logs-Url: https://github.com/Hack23/cia/sessions/1f88b4f5-4c4c-413a-9709-8392efa32da8

Co-authored-by: pethers <1726836+pethers@users.noreply.github.com>

Author: Copilot

.github/skills/github-actions-workflows/SKILL.md

@@ -21,7 +21,7 @@ Create and maintain secure, efficient CI/CD pipelines using GitHub Actions for t
 
 | Component | Version | Notes |
 |-----------|---------|-------|
-| **Java JDK** | 26-ea (Temurin) | Source level 21 |
+| **Java JDK** | 26 (Temurin) | Source level 21 |
 | **Maven** | 3.9.14 | Multi-module reactor build |
 | **PostgreSQL** | 18 | Extensions: pgaudit, pgcrypto, pg_stat_statements |
 | **Node.js** | 24 | MCP servers, Playwright |
@@ -54,7 +54,7 @@ jobs:
       - name: Set up JDK 26
         uses: actions/setup-java@c5195efecf7bdfc987ee8bae7a71cb8b11521c00 # v4.7.1
         with:
-          java-version: '26-ea'
+          java-version: '26'
           distribution: 'temurin'
           cache: 'maven'
 

.github/workflows/codeql-analysis.yml

@@ -118,7 +118,7 @@ jobs:
         uses: actions/setup-java@be666c2fcd27ec809703dec50e508c2fdc7f6654 # v5.2.0
         with:
           distribution: "temurin"
-          java-version: "26-ea"
+          java-version: "26"
           # Disable built-in cache - we use optimized manual caching below
           cache: ""
 

.github/workflows/copilot-setup-steps.yml

@@ -153,7 +153,7 @@ jobs:
         uses: actions/setup-java@be666c2fcd27ec809703dec50e508c2fdc7f6654 # v5.2.0
         with:
           distribution: "temurin"
-          java-version: "26-ea"
+          java-version: "26"
           # Disable built-in cache - we use optimized manual caching below
           cache: ""
 

.github/workflows/javadoc-generation.yml

@@ -81,7 +81,7 @@ jobs:
         uses: actions/setup-java@be666c2fcd27ec809703dec50e508c2fdc7f6654 # v5.2.0
         with:
           distribution: 'temurin'
-          java-version: '26-ea'
+          java-version: '26'
           java-package: 'jdk'
           check-latest: true
           # Disable built-in cache - we use optimized manual caching below

.github/workflows/release.yml

@@ -89,7 +89,7 @@ jobs:
       uses: actions/setup-java@be666c2fcd27ec809703dec50e508c2fdc7f6654 # v5.2.0
       with:
         distribution: 'temurin'
-        java-version: '26-ea'
+        java-version: '26'
         java-package: 'jdk'  # Explicitly specify JDK package
         check-latest: true   # Always get latest patch version
         # Disable built-in cache - we use optimized manual caching below