Inventory Diffs & Dev Environment Improvements

Changes

🚀 Features

• Store player inventory as diffs to reduce storage usage

🐛 Bug Fixes

• Ensure default system config is applied properly when installing modules
• Improve query performance for online player query

🧰 Maintenance

• Display test results in GitHub CI checks
• Enable Grove CLI worktree management
• Enable running multiple worktrees simultaneously
• Enable running multiple development environments simultaneously
• Fix e2e container build by upgrading Playwright to Node 24
• Speed up CI by running integration tests in parallel
• Disable docs publish (extracted to separate package now)
• Reduce dev container memory usage by 51%
• Add a skill so agents can work better with this repo
• Enable standalone npm package installation
• Exclude storybook and docusaurus from auto-run
• Enable mock gameserver package installation from npm

🤖🧰 Dependency updates

• chore(deps): update npm to v11.7.0 (#2375)