Gracefully handle disabled signups error

Improve CLAUDE.md

Rename project -> space

feat(serve): async chart configs with a typed echarts argument (#41)

feat(mcp): drive ghost serve UI for query visualization & charting (#36)

Add 'ghost space' command

Show overages guidance when the compute limit is exceeded (#38)

Improve errors when a payment method is required, add >= 80% compute …

…usage warning to 'ghost usage' output

Add invite commands, ungate space and member commands

feat(web): add SQL schema autocomplete to the serve UI (#30)