v0.1.5

Plugin Hub 0.1.5 introduces separate Official and Community plugin catalogs with explicit curation and improved catalog discovery.\n\n- Splits Plugin Hub into Official Plugins and Community Plugins while retaining catalog.json as a compatibility union.\n- Adds explicit catalog-policy.json curation so Official status is tied to trusted plugin sources.\n- Adds Community plugin confirmation messaging and keeps Official selected by default.\n- Improves WebUI catalog selection and custom/private catalog handling.\n- Adds documented no-PR standalone plugin discovery and Community-by-default classification.\n- Adds support for monorepo release assets and mirrors validated runtime files for Readest.\n- Keeps the bootstrap installer on stable while production catalog feeds use main.