fix: remove helm MCP sidecar and CLI, disable Docker layer cache

- Remove Helm CLI from Dockerfile (OOMKilled sidecar was the only consumer)
- Disable helm MCP sidecar in chart values (uses 194Mi+ idle, OOMKills at 256Mi)
- Remove helm from .mcp.json
- Disable Docker layer cache in build-and-push workflow (cache serves stale
  layers missing tool binaries - DO NOT RE-ENABLE)

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

.github/workflows/build-and-push.yaml

@@ -56,6 +56,5 @@ jobs:
           push: ${{ github.event_name != 'pull_request' }}
           tags: ${{ steps.meta.outputs.tags }}
           labels: ${{ steps.meta.outputs.labels }}
-          cache-from: type=gha
+          no-cache: true
-          cache-to: type=gha,mode=max
           platforms: linux/amd64

.mcp.json

@@ -18,10 +18,6 @@
     "playwright": {
       "type": "sse",
       "url": "http://localhost:8086/sse"
-    },
-    "helm": {
-      "type": "sse",
-      "url": "http://localhost:8012/sse"
     }
   }
 }

Dockerfile

@@ -80,12 +80,6 @@ RUN CRUSH_VERSION=$(curl -sL https://api.github.com/repos/charmbracelet/crush/re
     chmod +x /usr/local/bin/crush && \
     rm -rf /tmp/crush*
 
-# Install Helm CLI for Kubernetes chart management
-ARG HELM_VERSION=3.17.1
-RUN curl -fsSL "https://get.helm.sh/helm-v${HELM_VERSION}-linux-amd64.tar.gz" | \
-    tar -xz --strip-components=1 -C /usr/local/bin linux-amd64/helm && \
-    chmod +x /usr/local/bin/helm
-
 # Install GitHub CLI (gh) via official APT repo
 RUN curl -fsSL https://cli.github.com/packages/githubcli-archive-keyring.gpg | dd of=/usr/share/keyrings/githubcli-archive-keyring.gpg && \
     chmod go+r /usr/share/keyrings/githubcli-archive-keyring.gpg && \

chart/values.yaml

@@ -119,7 +119,7 @@ mcp:
 
     # Helm chart browsing and management
     helm:
-      enabled: true
+      enabled: false
       image:
         repository: ghcr.io/zekker6/mcp-helm
         tag: v1.3.1