Root cause: After keygen/sign completion, the gRPC message stream was not
unsubscribed. On the second operation, prepareForSign/prepareForKeygen
would try to cancel the stale stream, causing "CANCELLED: Cancelled on client".
Changes in tss-handler.ts:
- Add grpcClient.unsubscribeMessages() in all cleanup paths:
- participateKeygen close handler
- participateKeygen error handler
- participateSign close handler
- participateSign error handler
- cancel() method
- Reset sessionId and partyId in all cleanup paths
Changes in main.ts:
- Add reconnection logic in app 'activate' event for macOS
🤖 Generated with [Claude Code](https://claude.com/claude-code)
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
The app was crashing with "CANCELLED: Cancelled on client" error when
opening the app a second time. This happened because:
1. When window was reopened, old gRPC streams were in cancelled state
2. prepareForSign/prepareForKeygen tried to subscribe on cancelled streams
3. The error was unhandled and crashed the app
Changes:
- Add isConnected() check in prepareForSign() and prepareForKeygen()
- Throw meaningful error when gRPC client is not connected
- Wrap all prepareFor* calls in try-catch in main.ts
- Return user-friendly error message instead of crashing
🤖 Generated with [Claude Code](https://claude.com/claude-code)
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
Add complete co-sign functionality for multi-party transaction signing:
Frontend (React):
- CoSignCreate.tsx: Create signing session with share selection
- CoSignJoin.tsx: Join signing session via invite code
- CoSignSession.tsx: Monitor signing progress and results
- Add routes in App.tsx for new pages
Backend (Electron):
- main.ts: Add IPC handlers for co-sign operations
- tss-handler.ts: Add participateSign() for TSS signing
- preload.ts: Expose cosign API to renderer
- account-client.ts: Add sign session API types
TSS Party (Go):
- main.go: Implement 'sign' command for GG20 signing protocol
- integration_test.go: Add comprehensive tests for signing flow
Infrastructure:
- docker-compose.windows.yml: Expose gRPC port 50051
This is a pure additive change that does not affect existing
persistent role keygen/sign functionality.
🤖 Generated with [Claude Code](https://claude.com/claude-code)
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
hailin