ci: push base image al registry + parametrizza BASE_IMAGE nei service Dockerfile

Buildx con driver docker-container non vede image caricate nel daemon
locale. Soluzione: push base come git.tielogic.xyz/adriano/cerbero-mcp/
base:latest e i 6 service Dockerfile usano ${BASE_IMAGE}:${BASE_TAG}
con default "cerbero-base" per dev locale, override CI a path registry.

.gitea/workflows/ci.yml

@@ -126,13 +126,15 @@ jobs:
         id: meta
         run: echo "sha=$(git rev-parse --short HEAD)" >> $GITHUB_OUTPUT
 
-      - name: Build base image (load to local daemon)
+      - name: Build & push base image
         uses: docker/build-push-action@v6
         with:
           context: .
           file: docker/base.Dockerfile
-          tags: cerbero-base:latest
-          load: true
+          push: true
+          tags: |
+            ${{ env.IMAGE_PREFIX }}/base:latest
+            ${{ env.IMAGE_PREFIX }}/base:sha-${{ steps.meta.outputs.sha }}
           cache-from: type=registry,ref=${{ env.IMAGE_PREFIX }}/buildcache:base
           cache-to: type=registry,ref=${{ env.IMAGE_PREFIX }}/buildcache:base,mode=max
 
@@ -153,7 +155,9 @@ jobs:
         with:
           context: .
           file: docker/mcp-deribit.Dockerfile
-          build-args: BASE_TAG=latest
+          build-args: |
+            BASE_IMAGE=git.tielogic.xyz/adriano/cerbero-mcp/base
+            BASE_TAG=latest
           push: true
           tags: |
             ${{ env.IMAGE_PREFIX }}/mcp-deribit:latest
@@ -166,7 +170,9 @@ jobs:
         with:
           context: .
           file: docker/mcp-bybit.Dockerfile
-          build-args: BASE_TAG=latest
+          build-args: |
+            BASE_IMAGE=git.tielogic.xyz/adriano/cerbero-mcp/base
+            BASE_TAG=latest
           push: true
           tags: |
             ${{ env.IMAGE_PREFIX }}/mcp-bybit:latest
@@ -179,7 +185,9 @@ jobs:
         with:
           context: .
           file: docker/mcp-hyperliquid.Dockerfile
-          build-args: BASE_TAG=latest
+          build-args: |
+            BASE_IMAGE=git.tielogic.xyz/adriano/cerbero-mcp/base
+            BASE_TAG=latest
           push: true
           tags: |
             ${{ env.IMAGE_PREFIX }}/mcp-hyperliquid:latest
@@ -192,7 +200,9 @@ jobs:
         with:
           context: .
           file: docker/mcp-alpaca.Dockerfile
-          build-args: BASE_TAG=latest
+          build-args: |
+            BASE_IMAGE=git.tielogic.xyz/adriano/cerbero-mcp/base
+            BASE_TAG=latest
           push: true
           tags: |
             ${{ env.IMAGE_PREFIX }}/mcp-alpaca:latest
@@ -205,7 +215,9 @@ jobs:
         with:
           context: .
           file: docker/mcp-macro.Dockerfile
-          build-args: BASE_TAG=latest
+          build-args: |
+            BASE_IMAGE=git.tielogic.xyz/adriano/cerbero-mcp/base
+            BASE_TAG=latest
           push: true
           tags: |
             ${{ env.IMAGE_PREFIX }}/mcp-macro:latest
@@ -218,7 +230,9 @@ jobs:
         with:
           context: .
           file: docker/mcp-sentiment.Dockerfile
-          build-args: BASE_TAG=latest
+          build-args: |
+            BASE_IMAGE=git.tielogic.xyz/adriano/cerbero-mcp/base
+            BASE_TAG=latest
           push: true
           tags: |
             ${{ env.IMAGE_PREFIX }}/mcp-sentiment:latest