Improve devcontainer configuration

[key]

Summary

• Add env-file support for cleaner environment variable management
• Switch to shared Claude and gh config volume mounts
• Add permission fixes for .config and .claude directories
• Auto-skip Claude Code onboarding for smoother developer experience

Test plan

• Rebuild devcontainer and verify it starts successfully
• Verify Claude Code works without onboarding prompts
• Verify gh CLI has persistent config

🤖 Generated with Claude Code

Summary by CodeRabbit

• Chores
  • Dev container now supports loading an env file and uses updated volume mounts for improved local setup.
  • Removed a container-level secret mapping to avoid exposing a token at runtime.
  • Added an example env file to guide local configuration.
  • Initialization script sets ownership on config directories and auto-creates a completed-onboarding file to streamline first-run setup.

[coderabbitai]

Caution

Review failed

The pull request is closed.

Walkthrough

Updated the devcontainer to load env vars from .devcontainer/.env, adjust volume mounts (rename Claude volume and add GitHub CLI volume), remove a container-level CLAUDE token mapping, add an .env.example, and extend the post-create script to fix ownership and auto-create .claude.json onboarding data when absent.

Changes

Cohort / File(s)	Summary
Devcontainer manifest .devcontainer/devcontainer.json	Added --env-file .devcontainer/.env to runArgs; replaced volume sigrok-mcp-server-claude-settings with claude; added source=gh,target=/home/vscode/.config/gh,type=volume; removed CLAUDE_CODE_OAUTH_TOKEN from containerEnv.
Post-create script .devcontainer/post-create.sh	Added chown -R vscode:vscode for /home/vscode/.config and /home/vscode/.claude; create $HOME/.claude.json with onboarding flags/timestamp when missing.
Env example & CI .devcontainer/.env.example, .github/workflows/devcontainer.yml	Added .env.example template and changed CI step to copy it to .devcontainer/.env (replaced former directory/file creation step).

Estimated code review effort

🎯 3 (Moderate) | ⏱️ ~20 minutes

Poem

🐰 I hopped through dots and container seams,
I tucked an env file into devcontainer dreams,
Claudes and GH volumes set to share,
Chown made comfy, onboarding placed with care,
A little rabbit cheers — all set and fair! 🥕

Tip

Issue Planner is now in beta. Read the docs and try it out! Share your feedback on Discord.

---

Note

🎁 Summarized by CodeRabbit Free

Your organization is on the Free plan. CodeRabbit will generate a high-level summary and a walkthrough for each pull request. For a comprehensive line-by-line review, please upgrade your subscription to CodeRabbit Pro by visiting https://app.coderabbit.ai/login.

_{Comment @coderabbitai help to get the list of available commands and usage tips.}