v0.4.0

What's Changed

• feat(cli): make spm init idempotent instead of erroring by @pablocabrera85 in #36
• feat(cli): add spm target add to add vendors to an existing ai.json by @pablocabrera85 in #38
• fix(cli): derive default skill name from --path, not git URL by @pablocabrera85 in #39
• fix(cli): reject duplicate skill names instead of silently dropping them by @pablocabrera85 in #40
• chore(release): bump version to 0.4.0 by @pablocabrera85 in #41

Full Changelog: v0.3.0...v0.4.0