ci: use pre-installed El SDK from ci-base image

.gitea/workflows/deploy.yaml

@@ -62,26 +62,9 @@ jobs:
             echo "=> Full build required"
           fi
 
-      # foundation/el contains the elc compiler that build-stage.sh shells out
-      # to. We clone el directly with git rather than a second
-      # actions/checkout call — act_runner v0.6 in host mode hits a
-      # `permission denied` error on .git/objects/pack/*.idx when running
-      # two checkout steps in the same job. EL_HOME is pinned outside the
-      # workspace so the path build-stage.sh expects (../../foundation/el)
-      # resolves correctly.
-      - name: Clone el (foundation/el — provides the elc compiler)
+      - name: Set up El SDK
         if: steps.changetype.outputs.asset_only != 'true'
-        env:
-          CHECKOUT_TOKEN: ${{ secrets.CHECKOUT_TOKEN }}
-        run: |
-          set -euo pipefail
-          DEST="${{ github.workspace }}/../foundation-el"
-          rm -rf "$DEST"
-          git clone --depth 1 \
-            "https://will:${CHECKOUT_TOKEN}@git.neuralplatform.ai/neuron-technologies/el.git" \
-            "$DEST"
-          ls -la "$DEST" | head -5
-          echo "EL_HOME=$DEST" >> "$GITHUB_ENV"
+        run: echo "EL_HOME=/opt/el" >> "$GITHUB_ENV"
 
       - name: Authenticate to GCP
         id: auth
@@ -104,16 +87,6 @@ jobs:
       - name: Configure docker auth for Artifact Registry
         run: gcloud auth configure-docker us-central1-docker.pkg.dev --quiet
 
-      - name: Get elc (pre-built linux/amd64 from El SDK release)
-        if: steps.changetype.outputs.asset_only != 'true'
-        run: |
-          set -euo pipefail
-          curl -fL -o "$EL_HOME/dist/platform/elc" \
-            https://git.neuralplatform.ai/neuron-technologies/el/releases/download/v1.2.1/elc-linux-amd64
-          chmod +x "$EL_HOME/dist/platform/elc"
-          file "$EL_HOME/dist/platform/elc"
-          ls -la "$EL_HOME/dist/platform/elc"
-
       - name: Compute image tag
         id: tag
         run: |