feat: SugarCRM 6.5.26 CE - Docker + compose + CI/CD

- PHP 5.6 Apache Dockerfile (Debian Jessie, archive repos)
- Source from bklein01/sugarcrm GitHub mirror
- MySQL 5.7 database with healthcheck
- Silent install via init.sh (AdminWizard disabled)
- REST v4.1 API test script (test_api.py)
- Gitea Actions CI/CD for registry push
- Full README with API docs and pitfall notes

.gitea/workflows/docker-build.yml

@@ -1,24 +1,19 @@
-name: Docker Build & Push
+name: Docker Build & Push SugarCRM 6.5 CE
 
 on:
   push:
     branches: [main]
   pull_request:
     branches: [main]
+  workflow_dispatch:
 
 jobs:
   build-and-push:
     runs-on: ubuntu-latest
-    container:
-      image: docker:27-dind
-      options: --privileged
     steps:
       - name: Checkout
         uses: actions/checkout@v4
 
-      - name: Set up Docker Buildx
-        uses: docker/setup-buildx-action@v3
-
       - name: Login to Gitea Container Registry
         uses: docker/login-action@v3
         with:
@@ -26,13 +21,12 @@ jobs:
           username: ${{ secrets.REGISTRY_USER }}
           password: ${{ secrets.REGISTRY_TOKEN }}
 
-      - name: Build and Push
-        uses: docker/build-push-action@v6
-        with:
-          context: .
-          push: true
-          tags: |
-            git.kgessner.de/luiicode/sugar-crm:latest
-            git.kgessner.de/luiicode/sugar-crm:7.15.1
-          cache-from: type=gha
-          cache-to: type=gha,mode=max
+      - name: Build Docker Image
+        run: |
+          docker build -t git.kgessner.de/luiicode/sugar-crm:6.5.26 .
+          docker tag git.kgessner.de/luiicode/sugar-crm:6.5.26 git.kgessner.de/luiicode/sugar-crm:latest
+
+      - name: Push to Registry
+        run: |
+          docker push git.kgessner.de/luiicode/sugar-crm:6.5.26
+          docker push git.kgessner.de/luiicode/sugar-crm:latest