Improve devcontainer environment variable forwarding

Replace manual variable forwarding with comprehensive environment dump to ensure all user-configured tools and package managers are available to the catnip service.

🤖 Generated with [Claude Code](https://claude.ai/code)

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

Author: Claude

.devcontainer/features/feature/catnip-env.sh

@@ -6,13 +6,5 @@ echo "Updating catnip service environment..."
 sudo tee -a /etc/default/catnip >/dev/null <<EOF
 
 # Updated with current codespace environment ($(date))
-export GITHUB_TOKEN="${GITHUB_TOKEN:-}"
-export GITHUB_USER="${GITHUB_USER:-}"
-export CODESPACE_NAME="${CODESPACE_NAME:-}"
-export GITHUB_REPOSITORY="${GITHUB_REPOSITORY:-}"
-export CODESPACES="${CODESPACES:-}"
-export PATH="${PATH:-}"
-# TODO: we'll likely want to forward other env vars here
-export ANTHROPIC_API_KEY="${ANTHROPIC_API_KEY:-}"
-export OPENAI_API_KEY="${OPENAI_API_KEY:-}"
+$(printenv | sed 's/^/export /')
 EOF

.devcontainer/features/feature/devcontainer-feature.json

@@ -1,6 +1,6 @@
 {
   "id": "feature",
-  "version": "1.1.0",
+  "version": "1.1.1",
   "name": "catnip",
   "description": "Ensures SSH, installs catnip, Claude CLI, GitHub CLI, and Catnip VS Code sidebar extension.",
   "options": {