v0.5.0

Changelog

• 7c1fc0a Merge pull request #15 from runbear-io/feat/insights-landing-notes
• bc0f0c5 Merge pull request #16 from runbear-io/feat/ux-polish
• fafa00b Merge pull request #17 from runbear-io/feat/project-home-guide
• 1c5dcba Merge pull request #18 from runbear-io/docs/agents-md-orientation
• c982c54 docs(plugin): gbrain coexistence — one enrichment owner per shared folder
• 8cd8861 docs(plugin): two-file AGENTS.md orientation for shared folders
• 87539e1 feat(web): UX polish — stable rerenders, RESTful view routes, unified history rows
• b20ed7c feat(web): expandable history notes; Insights as project landing
• 46f48e4 feat(web): project home page — connect-an-agent guide + embedded Insights