v0.4.0

Changelog

• 9a35a04 Merge pull request #13 from gzb1128/feature/plugin-disable-enable
• 99b8f0b fix: preserve user MCP config on enable/update, add InstallMissingMCPConfig
• 6b2197b refactor: extract resolveMarketName helper, add MutateInstallRecord, fix review findings
• cd2bc57 feat: show disabled status in plugin list output
• d5b8f2e feat: add plugin disable and enable CLI commands
• ee158b9 feat: preserve disabled state across plugin update
• 242c4ed feat: enable disabled plugin on install instead of re-downloading
• 2a8aa1a feat: add idempotent Disable and Enable methods to Installer
• 0e5ecfa feat: add DisableMCPConfig and EnableMCPConfig to MCP manager
• b4097d3 feat: add UpdateInstallRecord method to config manager
• 9965309 feat: add Disabled and DisabledAt fields to InstallRecord
• 203c5dd docs: add plugin disable/enable design spec and implementation plan
• 57a5632 Merge pull request #12 from gzb1128/docs/seo-friendly-description
• 13c059e docs: add SEO-friendly subtitle to README for better discoverability
• 2ac032c Merge pull request #11 from gzb1128/docs/add-release-guide
• c979953 docs: add release skill and reference in AGENTS.md