* feat(chat): add shared activity timestamp formatter
* feat(chat): pass assistant created timestamp to message body
* feat(chat): render footer timestamp beside elapsed time
* feat(chat): pass timing metadata in reasoning text blocks
* feat(chat): propagate justification timing to timeline block
* feat(chat): show thinking duration with hover end time
* feat(chat): reveal tool end time on activity hover
Update all import statements to use @opencode-ai/sdk/v2
Modify Vite configurations to alias new SDK path
Update API client method signatures for SDK v2 compatibility
Nelson Pires