v0.18.0

• Custom prompts: build your own and insert them into any agent chat on web with Alt+Shift+P
• DevChain MCP: extended agent info — provider config, team memberships, live online/busy presence, and open assigned epics
• Providers: supply your own Claude settings JSON, with one-click restore to the DevChain default
• Chat: busy agents get an animated halo and clearer status dots in the sidebar
• Mobile: signing in recovers on its own after a server certificate rotation instead of staying stuck
• Worktrees: temporarily hidden while the feature is reworked
• Template updates