Custom workspace image + fix slash command invocation

- Add coder/workspace.Dockerfile with Node.js 22, wrangler, claude-code,
  and Playwright deps pre-installed. Eliminates ~3 min of installs on
  every workspace startup.
- Add CI workflow to build and push to registry.samson.media/coder-workspace
- Fix slash command: -p mode doesn't support /commands, so read the .md
  file directly, strip frontmatter, substitute $ARGUMENTS, pass as prompt
- Switch workspace image from codercom/enterprise-base to custom image

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

.gitea/workflows/publish-workspace.yml

@@ -0,0 +1,27 @@
+name: Publish Workspace Image
+
+on:
+  push:
+    paths:
+      - 'coder/workspace.Dockerfile'
+    branches:
+      - main
+
+concurrency:
+  group: publish-workspace
+  cancel-in-progress: false
+
+jobs:
+  publish:
+    runs-on: self-hosted
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: Log in to registry
+        run: echo "${{ secrets.REGISTRY_PASSWORD }}" | docker login registry.samson.media -u "${{ secrets.REGISTRY_USERNAME }}" --password-stdin
+
+      - name: Build and push
+        run: |
+          IMAGE=registry.samson.media/coder-workspace
+          docker build -f coder/workspace.Dockerfile -t "$IMAGE:latest" .
+          docker push "$IMAGE:latest"

coder/cloudflare-worker/main.tf

@@ -478,28 +478,6 @@ resource "coder_agent" "main" {
     #!/bin/bash
     set -e
 
-    # --- Install Node.js 22 ---
-    if ! command -v node &> /dev/null; then
-      curl -fsSL https://deb.nodesource.com/setup_22.x | sudo -E bash -
-      sudo apt-get install -y nodejs
-    fi
-
-    # --- Install global tools ---
-    if ! command -v wrangler &> /dev/null; then
-      sudo npm install -g wrangler @anthropic-ai/claude-code
-    fi
-
-    # --- Install Playwright system dependencies ---
-    if ! dpkg -s libgbm1 &> /dev/null; then
-      sudo apt-get update
-      sudo apt-get install -y libnss3 libnspr4 libatk1.0-0 libatk-bridge2.0-0 \
-        libcups2t64 libdrm2 libxkbcommon0 libxcomposite1 libxdamage1 libxfixes3 \
-        libxrandr2 libgbm1 libpango-1.0-0 libcairo2 libasound2t64 libatspi2.0-0 \
-        || sudo apt-get install -y libnss3 libnspr4 libatk1.0-0 libatk-bridge2.0-0 \
-        libcups2 libdrm2 libxkbcommon0 libxcomposite1 libxdamage1 libxfixes3 \
-        libxrandr2 libgbm1 libpango-1.0-0 libcairo2 libasound2 libatspi2.0-0
-    fi
-
     # --- Configure git ---
     git config --global user.name "${data.coder_workspace_owner.me.full_name}"
     git config --global user.email "${data.coder_workspace_owner.me.email}"
@@ -579,8 +557,16 @@ LOGEOF
         ARGS="$DEPLOY_ENV"
       fi
 
+      # Read the slash command .md file, strip YAML frontmatter, substitute $ARGUMENTS
+      CMD_FILE=".claude/commands/$TASK_TYPE.md"
+      if [ ! -f "$CMD_FILE" ]; then
+        echo "ERROR: Command file not found: $CMD_FILE" | tee ~/task-output.log
+        exit 1
+      fi
+      PROMPT=$(sed '1{/^---$/!q}; 1,/^---$/d' "$CMD_FILE" | sed "s/\\\$ARGUMENTS/$ARGS/g")
+
       # Run Claude Code in non-interactive mode with tool access
-      claude -p --dangerously-skip-permissions --verbose "/$TASK_TYPE $ARGS" 2>&1 | tee ~/task-output.log
+      claude -p --dangerously-skip-permissions --verbose "$PROMPT" 2>&1 | tee ~/task-output.log
       EXIT_CODE=$?
       echo "Claude exited with code: $EXIT_CODE" | tee -a ~/task-output.log
 
@@ -691,7 +677,7 @@ resource "kubernetes_deployment_v1" "workspace" {
 
         container {
           name  = "coder-agent"
-          image = "codercom/enterprise-base:latest"
+          image = "registry.samson.media/coder-workspace:latest"
 
           command = ["sh", "-c", coder_agent.main.init_script]
 

coder/workspace.Dockerfile

@@ -0,0 +1,23 @@
+FROM codercom/enterprise-base:latest
+
+USER root
+
+# Node.js 22
+RUN curl -fsSL https://deb.nodesource.com/setup_22.x | bash - \
+    && apt-get install -y nodejs \
+    && rm -rf /var/lib/apt/lists/*
+
+# Global npm tools
+RUN npm install -g wrangler @anthropic-ai/claude-code
+
+# Playwright system dependencies (both Ubuntu 24.04 and 22.04 package names)
+RUN apt-get update && apt-get install -y --no-install-recommends \
+    libnss3 libnspr4 libatk1.0-0 libatk-bridge2.0-0 \
+    libdrm2 libxkbcommon0 libxcomposite1 libxdamage1 libxfixes3 \
+    libxrandr2 libgbm1 libpango-1.0-0 libcairo2 libatspi2.0-0 \
+    jq netcat-openbsd \
+    && (apt-get install -y libcups2t64 libasound2t64 2>/dev/null \
+        || apt-get install -y libcups2 libasound2 2>/dev/null) \
+    && rm -rf /var/lib/apt/lists/*
+
+USER coder