Summary

Added dev container setup

Linked issue

N/A

Changes

• Setups up dev container

Checklist

• Tests added or updated (or N/A with reason)
• Docs / types updated if public API changed (index.d.ts and index.d.cts)
• No breaking changes (or called out explicitly above)

Summary by cubic

Adds a VS Code Dev Container for axios to standardize local development and speed up onboarding. Installs ghcr.io/devcontainers/features/github-cli:1, runs npm ci --ignore-scripts, and configures ESLint/Prettier.

Description

• Summary of changes
  • Adds .devcontainer/devcontainer.json using mcr.microsoft.com/devcontainers/javascript-node:1-24-bookworm.
  • Enables GitHub CLI feature ghcr.io/devcontainers/features/github-cli:1.
  • Runs npm ci --ignore-scripts on create.
  • Recommends VS Code extensions dbaeumer.vscode-eslint and esbenp.prettier-vscode; configures ESLint for JavaScript and disables format on save.
• Reasoning
  • Provide a reproducible, ready-to-code environment for contributors and Codespaces.
• Additional context
  • No application code changes.

Docs

• Add a /docs/guide for “Using the Dev Container”:
  • Prereqs (Docker, VS Code + Dev Containers, or Codespaces).
  • How to open the repo in a Dev Container/Codespaces.
  • What runs automatically (install via npm ci --ignore-scripts) and available tools (GitHub CLI, ESLint/Prettier).

Testing

• No tests added; config-only change.
• Manual check: open in Dev Container, verify dependencies install, ESLint activates, and save does not auto-format.

Semantic version impact

• No version impact. Tooling-only change; no release required.

^{Written for commit 6da970f. Summary will update on new commits. Review in cubic}