- Add exchange_validation.py module for validating exchange requirements
before running strategies (backtest, paper, live modes)
- Fix AttributeError in Signals.py: 'Indicators' object has no attribute
'indicators' - created IndicatorWrapper class for proper data access
- Fix testnet balance issue: explicitly pass testnet=False to all
connect_exchange calls to prevent pickle corruption from old testnet
Exchange objects
- Add balance exchange selector: display one exchange at a time with
dropdown to switch between connected exchanges (defaults to chart view)
- Add unique tbl_key generation for exchange_data to prevent duplicate
entries (format: user:exchange)
- Fix DataCache balance serialization for list types
- Update frontend error handling for exchange validation errors
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
Implement a subscription system for public strategies:
Security & Auth:
- Bind WebSocket user identity at connect time (prevents spoofing)
- Add server-side ownership verification for all destructive operations
- Invalidate socket connections on logout
- Add XSS protection with HTML/JS escaping in frontend
Database:
- Add strategy_subscriptions table with proper indexes
- Fix get_all_rows_from_datacache to fall back to DB when cache empty
Backend:
- Add subscribe/unsubscribe endpoints with authorization checks
- Add get_user_strategies (owned + subscribed) and get_public_strategies_catalog
- Propagate indicator_owner_id through strategy instances for subscribed strategies
- Redact strategy internals (code, workspace) for non-owners
Frontend:
- Add "Add Public" button to browse and subscribe to public strategies
- Show subscribed strategies with creator badge and unsubscribe button
- Prevent editing of subscribed strategies (show info modal instead)
- Add public strategy browser modal
Tests:
- Update authorization tests for new subscription-required model
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
Key fixes:
- ExchangeInterface: Remove stale entries before creating new exchange connections
- LiveBroker: Optimize get_total_equity() to price only top 10 assets (was hanging on 462 testnet assets)
- LiveBroker: Add fiat currency skip list to avoid failed price lookups
- PythonGenerator: Fix market symbol regex to handle 2-5 char symbols (BTC/USDT)
New features:
- LiveStrategyInstance: Full live trading strategy execution
- Circuit breaker and position limits for live trading safety
- Restart-safe order reconciliation via client order IDs
Verified working:
- Live strategy starts on Binance testnet
- Orders placed and filled successfully
- Execution loop runs with active strategies
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
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