- Upgrade go-binance to v2.8.9 with new Algo Order API
- Migrate SetStopLoss/SetTakeProfit to use AlgoOrderTypeStopMarket/TakeProfitMarket
- Update cancel functions to handle both legacy and Algo orders
- Fix Lighter stop orders using correct order types (type=2/4) with TriggerPrice
- Add CancelAllOrders before opening positions for Bybit and Lighter
- Fix decision limit selector in API handler
- Add stop_loss/take_profit/confidence fields to DecisionAction
- Store decisions array in database with proper serialization
- Redesign DecisionCard with beautiful entry/SL/TP display
- Fix Lighter API field name mismatches (position/size, avg_entry_price/entry_price, sign/side)
- Fix GetBalance return format to match standard fields (totalWalletBalance, totalUnrealizedProfit)
- Fix GetPositions return format to match standard fields (positionAmt, markPrice, unRealizedProfit)
- Add API Key Index field to frontend with explanation
- Update Lighter referral link
- Disable Lighter testnet (mainnet only)
- Add load error tracking for better error messages
- Remove old Lighter V1 implementation files
- Remove test credentials from test files
- Fix backtest API 404 by registering routes in setupRoutes()
- Redesign BacktestPage with 3-step wizard configuration
- Add progress ring visualization with animation
- Add equity chart with trade markers using Recharts
- Add trade timeline with card-style display
- Add stats cards for equity, return, drawdown, sharpe
- Add tab navigation for overview/chart/trades/decisions
- Improve run history list with status icons
- Add lightweight-charts dependency (for future use)
- Add BitgetTrader with full trading implementation
- Support one-way position mode with proper API parameters
- Add Bitget to all exchange switch statements
- Update exchange icons (Bybit, OKX, Bitget, Lighter)
- Add Bitget to frontend exchange config modal
- Add OI ranking data fetching and formatting for AI prompts
- Fix trader update not saving strategy_id, ai_model_id, initial_balance
- Fix AI API key not set for non-qwen/deepseek providers
- Add strategy_id to trader config API response
- Remove old trader from memory before reloading on update
- Clean up unused useTraderActions.ts
- Add AI debate arena for multi-AI trading decisions
- Fix debate consensus calculation and display
- Fix vote parsing to support both <decision> and <final_vote> tags
- Fix JSON field name compatibility (stop_loss/stop_loss_pct)
- Fix symbol validation to prevent AI hallucinating invalid symbols
- Fix Bybit position side display (was uppercase, now lowercase for consistency)
- Fix NOFX logo navigation to home page
- Add detailed logging for debugging trade execution
- Add new MCP clients for Grok (xAI), OpenAI, Claude, Gemini, Kimi
- Update auto_trader, backtest, and strategy to support all providers
- Add provider icons and fix SVG gradient conflicts
- Add API application links and hints in model config modal
- Show model version in AI model list cards
- Add Chinese/English translations for provider hints
- Remove deprecated traders component files
- Add real-time data point to equity history API for chart/leaderboard consistency
- Fix chart legend showing 0% by finding each trader's last available data point
- Use consistent timestamp for all real-time data points in batch requests
- Increase chart trader limit from 5 to 10
- Remove Mini Stats Bar trader limit
- Add maxMktSz check for OKX market orders to prevent exceeding limits
- Increase margin safety buffer (0.1% fee + 1% buffer) for all exchanges
- Fix Binance position closure detection with direct trade queries
- Move Recent Completed Trades before Current Positions in AI prompt
- Update README screenshots with table layout for better alignment
- Fix initial balance using available_balance instead of total_equity
- Fix WSMonitor nil pointer by starting market monitor before loading traders
- Add strategy name display on traders list and dashboard pages
- Various position sync and trading improvements
API now returns default AI models (deepseek, qwen, openai, claude, gemini, grok) and exchanges (binance, bybit, okx, hyperliquid, aster, lighter) when database has no data.
- Add TRANSPORT_ENCRYPTION env config (default: false)
- Allow HTTP/IP access when transport encryption is disabled
- Add /api/crypto/config endpoint to expose encryption status
- Update WebCryptoEnvironmentCheck with 'disabled' status
- Update ExchangeConfigModal and AITradersPage to allow form submission when disabled
- Add i18n translations for disabled status (EN/CN)
- Update README with two deployment modes documentation
- Add strategy export/import functionality to Strategy Studio
- Fix trader deletion not removing from memory (competition page ghost data)
- Simplify TraderConfigViewModal: remove unused fields, show strategy name
- Improve quant data formatting: OI/Netflow multi-timeframe display
- Add configurable OI/Netflow toggles in indicator settings
- Clean up unused frontend components and dead code
Backend:
- Add GetByID method to TraderStore for fetching trader without userID
- Calculate total_pnl_pct in equity history API using initial_balance
- Falls back to first snapshot equity if initial_balance not set
Frontend (ComparisonChart):
- Redesign with modern UI: gradient fills, glow effects, rounded corners
- Add mini stats bar showing all traders with current PnL
- Improved tooltip with date, time, and trend icons
- Better Y-axis domain calculation ensuring zero is visible
- Bottom stats grid: Leader, Lead PnL, Gap, Data Points
- Use ComposedChart with Area + Line for visual depth
- Animated loading state with spinning indicator
- Remove initDefaultData() for exchanges, ai_models, strategies tables
- Change supported exchanges/models API to return static lists
- Add GetDefaultStrategyConfig(lang) with Chinese/English prompt templates
- Frontend passes language parameter when creating new strategy
- Remove system_config, beta_codes, signal_source tables and related code
- Simplify config.go to only read from .env (APIServerPort, JWTSecret, RegistrationEnabled)
- Remove GetCustomCoins, use all USDT perpetual contracts for WSMonitor
- Add trader_equity_snapshots table for equity tracking
- Remove signal source modal from frontend AITradersPage
- Fix WSMonitor nil panic by restoring initialization in main.go
- Add handleClosePosition API endpoint in server.go
- Add closePosition API function in frontend
- Add close position button to positions table in App.tsx and TraderDashboard.tsx
- Fix GetFullConfig to include passphrase field for OKX
- Fix OKX CloseLong/CloseShort to use position quantity directly (already in contracts)
* feat: add OKX exchange trading support
- Add OKX trader client with full trading API integration
- Support API Key, Secret Key, and Passphrase authentication
- Add OKX icon and frontend configuration modal
- Update exchange store and types for OKX fields
* fix: add passphrase column migration and fix exchange type mapping
* fix: show OKX input fields in exchange config modal
* fix: ensure all supported exchanges exist for user when listing
* fix: simplify exchange type check condition for OKX
* debug: add visible debug info for exchange id
* fix: remove debug info from exchange config modal
* fix: add OKX to exchange type condition in AITradersPage
* feat: complete OKX trading support and fix exchange config issues
- Add LIGHTER exchange UI support in AITradersPage
- Add passphrase field to UpdateExchangeConfigRequest type
- Fix OKX HTTP client to bypass proxy (disable system proxy)
- Auto-fetch initial balance from exchange when not set
- Support multiple balance field names for different exchanges
- Add detailed error messages when trader fails to load
- Add lighter_api_key_private_key field to exchange store
* feat: add Strategy Studio with multi-timeframe support
- Add Strategy Studio page with three-column layout for strategy management
- Support multi-timeframe K-line data selection (5m, 15m, 1h, 4h, etc.)
- Add GetWithTimeframes() function in market package for fetching multiple timeframes
- Add TimeframeSeriesData struct for storing per-timeframe technical indicators
- Update formatMarketData() to display all selected timeframes in AI prompt
- Add strategy API endpoints for CRUD operations and test run
- Integrate real AI test runs with configured AI models
- Support custom AI500 and OI Top API URLs from strategy config
* docs: add Strategy Studio screenshot to README files
* fix: correct strategy-studio.png filename case in README
* refactor: remove legacy signal source config and simplify trader creation
- Remove signal source configuration from traders page (now handled by strategy)
- Remove advanced options (legacy config) from TraderConfigModal
- Rename default strategy to "默认山寨策略" with AI500 coin pool URL
- Delete SignalSourceModal and SignalSourceWarning components
- Clean up related stores, hooks, and page components
* refactor: 简化交易动作，移除 update_stop_loss/update_take_profit/partial_close
- 移除 Decision 结构体中的 NewStopLoss, NewTakeProfit, ClosePercentage 字段
- 删除 executeUpdateStopLossWithRecord, executeUpdateTakeProfitWithRecord, executePartialCloseWithRecord 函数
- 简化 logger 中的 partial_close 聚合逻辑
- 更新 AI prompt 和验证逻辑，只保留 6 个核心动作
- 清理相关测试代码
保留的交易动作: open_long, open_short, close_long, close_short, hold, wait
* refactor: 移除 AI学习与反思 模块
- 删除前端 AILearning.tsx 组件和相关引用
- 删除后端 /performance API 接口
- 删除 logger 中 AnalyzePerformance、calculateSharpeRatio 等函数
- 删除 PerformanceAnalysis、TradeOutcome、SymbolPerformance 等结构体
- 删除 Context 中的 Performance 字段
- 移除 AI prompt 中夏普比率自我进化相关内容
- 清理 i18n 翻译文件中的相关条目
该模块基于磁盘存储计算，经常出错，做减法移除
* refactor: 将数据库操作统一迁移到 store 包
- 新增 store/ 包，统一管理所有数据库操作
- store.go: 主 Store 结构，懒加载各子模块
- user.go, ai_model.go, exchange.go, trader.go 等子模块
- 支持加密/解密函数注入 (SetCryptoFuncs)
- 更新 main.go 使用 store.New() 替代 config.NewDatabase()
- 更新 api/server.go 使用 *store.Store 替代 *config.Database
- 更新 manager/trader_manager.go:
- 新增 LoadTradersFromStore, LoadUserTradersFromStore 方法
- 删除旧版 LoadUserTraders, LoadTraderByID, loadSingleTrader 等方法
- 移除 nofx/config 依赖
- 删除 config/database.go 和 config/database_test.go
- 更新 api/server_test.go 使用 store.Trader 类型
- 清理 logger/ 包中未使用的 telegram 相关代码
* refactor: unify encryption key management via .env
- Remove redundant EncryptionManager and SecureStorage
- Simplify CryptoService to load keys from environment variables only
- RSA_PRIVATE_KEY: RSA private key for client-server encryption
- DATA_ENCRYPTION_KEY: AES-256 key for database encryption
- JWT_SECRET: JWT signing key for authentication
- Update start.sh to auto-generate missing keys on first run
- Remove secrets/ directory and file-based key storage
- Delete obsolete encryption setup scripts
- Update .env.example with all required keys
* refactor: unify logger usage across mcp package
- Add MCPLogger adapter in logger package to implement mcp.Logger interface
- Update mcp/config.go to use global logger by default
- Remove redundant defaultLogger from mcp/logger.go
- Keep noopLogger for testing purposes
* chore: remove leftover test RSA key file
* chore: remove unused bootstrap package
* refactor: unify logging to use logger package instead of fmt/log
- Replace all fmt.Print/log.Print calls with logger package
- Add auto-initialization in logger package init() for test compatibility
- Update main.go to initialize logger at startup
- Migrate all packages: api, backtest, config, decision, manager, market, store, trader
* refactor: rename database file from config.db to data.db
- Update main.go, start.sh, docker-compose.yml
- Update migration script and documentation
- Update .gitignore and translations
* fix: add RSA_PRIVATE_KEY to docker-compose environment
* fix: add registration_enabled to /api/config response
* fix: Fix navigation between login and register pages
Use window.location.href instead of react-router's navigate() to fix
the issue where URL changes but the page doesn't reload due to App.tsx
using custom route state management.
* fix: Switch SQLite from WAL to DELETE mode for Docker compatibility
WAL mode causes data sync issues with Docker bind mounts on macOS due
to incompatible file locking mechanisms between the container and host.
DELETE mode (traditional journaling) ensures data is written directly
to the main database file.
* refactor: Remove default user from database initialization
The default user was a legacy placeholder that is no longer needed now
that proper user registration is in place.
* feat: Add order tracking system with centralized status sync
- Add trader_orders table for tracking all order lifecycle
- Implement GetOrderStatus interface for all exchanges (Binance, Bybit, Hyperliquid, Aster, Lighter)
- Create OrderSyncManager for centralized order status polling
- Add trading statistics (Sharpe ratio, win rate, profit factor) to AI context
- Include recent completed orders in AI decision input
- Remove per-order goroutine polling in favor of global sync manager
* feat: Add TradingView K-line chart to dashboard
- Create TradingViewChart component with exchange/symbol selectors
- Support Binance, Bybit, OKX, Coinbase, Kraken, KuCoin exchanges
- Add popular symbols quick selection
- Support multiple timeframes (1m to 1W)
- Add fullscreen mode
- Integrate with Dashboard page below equity chart
- Add i18n translations for zh/en
* refactor: Replace separate charts with tabbed ChartTabs component
- Create ChartTabs component with tab switching between equity curve and K-line
- Add embedded mode support for EquityChart and TradingViewChart
- User can now switch between account equity and market chart in same area
* fix: Use ChartTabs in App.tsx and fix embedded mode in EquityChart
- Replace EquityChart with ChartTabs in App.tsx (the actual dashboard renderer)
- Fix EquityChart embedded mode for error and empty data states
- Rename interval state to timeInterval to avoid shadowing window.setInterval
- Add debug logging to ChartTabs component
* feat: Add position tracking system for accurate trade history
- Add trader_positions table to track complete open/close trades
- Add PositionSyncManager to detect manual closes via polling
- Record position on open, update on close with PnL calculation
- Use positions table for trading stats and recent trades (replacing orders table)
- Fix TradingView chart symbol format (add .P suffix for futures)
- Fix DecisionCard wait/hold action color (gray instead of red)
- Auto-append USDT suffix for custom symbol input
* update
---------
* fix: resolve multiple bugs preventing trader creation
Bug fixes:
1. Fix time.Time scanning error - SQLite stores datetime as TEXT, now parsing manually
2. Fix foreign key mismatch - traders table referenced exchanges(id) but exchanges uses composite primary key (id, user_id)
3. Add missing backtestManager field to Server struct
4. Add missing Shutdown method to Server struct
5. Fix NewFuturesTrader call - pass userId parameter
6. Fix UpdateExchange call - pass all required parameters
7. Add migrateTradersTable() to fix existing databases
These issues prevented creating new traders with 500 errors.
* fix(api): fix balance extraction field name mismatch
Binance API returns 'availableBalance' (camelCase) but code was looking for
'available_balance' (snake_case). Now supports both formats.
Also added 'totalWalletBalance' as fallback for total balance extraction.
* fix(frontend): add missing ConfirmDialogProvider to App
The delete trader button required ConfirmDialogProvider to be wrapped
around the App component for the confirmation dialog to work.
---------
Co-authored-by: NOFX Trader <nofx@local.dev>
## Problem
When multiple users create traders with the same exchange + AI model
combination within the same second, they generate identical traderIDs,
causing data conflicts.
Old code (Line 496):
```go
traderID := fmt.Sprintf("%s_%s_%d", req.ExchangeID, req.AIModelID, time.Now().Unix())
```
## Solution
Use UUID to guarantee 100% uniqueness while preserving prefix for debugging:
```go
traderID := fmt.Sprintf("%s_%s_%s", req.ExchangeID, req.AIModelID, uuid.New().String())
```
Example output: `binance_gpt-4_a1b2c3d4-e5f6-7890-abcd-ef1234567890`
## Changes
- `api/server.go:495-497`: Use UUID for traderID generation
- `api/traderid_test.go`: New test file with 3 comprehensive tests
## Tests
✅ All tests passed (0.189s)
✅ TestTraderIDUniqueness - 100 unique IDs generated
✅ TestTraderIDFormat - 3 exchange/model combinations validated
✅ TestTraderIDNoCollision - 1000 iterations without collision
Fixes#893
Co-authored-by: the-dev-z <the-dev-z@users.noreply.github.com>
* refactor(frontend): extract RegistrationDisabled as reusable component
- Create RegistrationDisabled component with i18n support
- Add registrationClosed and registrationClosedMessage translations
- Replace inline JSX in App.tsx with new component
- Improve code maintainability and reusability
- Add hover effect to back button for better UX
* fix(frontend): add registration toggle to LoginModal component
- Add useSystemConfig hook to LoginModal
- Conditionally render registration button based on registration_enabled config
- Ensures consistency with HeaderBar and LoginPage registration controls
- Completes registration toggle feature implementation across all entry points
* feat(frontend): add registration toggle UI support
- Add registration disabled page in App.tsx when registration is closed
- Hide registration link in LoginPage when registration is disabled
- Add registration_enabled field to SystemConfig interface
- Frontend conditionally shows/hides registration UI based on backend config
* feat: add registration toggle feature
Add system-level registration enable/disable control:
- Add registration_enabled config to system_config table (default: true)
- Add registration check in handleRegister API endpoint
- Expose registration_enabled status in /api/config endpoint
- Frontend can use this config to conditionally show/hide registration UI
This allows administrators to control user registration without code changes.
* fix(frontend): add registration toggle to HeaderBar and RegisterPage
- Add useSystemConfig hook and registrationEnabled check to HeaderBar
- Conditionally show/hide signup buttons in both desktop and mobile views
- Add registration check to RegisterPage to show RegistrationDisabled component
- This completes the registration toggle feature across all UI components
* test(frontend): add comprehensive unit tests for registration toggle feature
- Add RegistrationDisabled component tests (rendering, navigation, styling)
- Add registrationToggle logic tests (config handling, edge cases, multi-location consistency)
- Configure Vitest with jsdom environment for React component testing
- All 80 tests passing (9 new tests for RegistrationDisabled + 21 for toggle logic)
## Summary
Allow users to select the number of decision records to display (5/10/20/50)
in the Web UI, with persistent storage in localStorage.
## Changes
### Backend
- api/server.go: Add 'limit' query parameter support to /api/decisions/latest
- Default: 5 (maintains current behavior)
- Max: 50 (prevents excessive data loading)
- Fully backward compatible
### Frontend
- web/src/lib/api.ts: Update getLatestDecisions() to accept limit parameter
- web/src/pages/TraderDashboard.tsx:
- Add decisionLimit state management with localStorage persistence
- Add dropdown selector UI (5/10/20/50 options)
- Pass limit to API calls and update SWR cache key
## Time Coverage
- 5 records = 15 minutes (default, quick check)
- 10 records = 30 minutes (short-term review)
- 20 records = 1 hour (medium-term analysis)
- 50 records = 2.5 hours (deep pattern analysis)
* fix(auth): allow re-fetching OTP for unverified users
**Problem:**
- User registers but interrupts OTP setup
- Re-registration returns "邮箱已被注册" error
- User stuck, cannot retrieve QR code to complete setup
**Root Cause:**
- handleRegister rejects all existing emails without checking OTPVerified status
- No way for users to recover from interrupted registration
**Fix:**
- Check if existing user has OTPVerified=false
- If unverified, return original OTP QR code instead of error
- User can continue completing registration with same user_id
- If verified, still reject with "邮箱已被注册" (existing behavior)
**Code Changes:**
```go
// Before:
_, err := s.database.GetUserByEmail(req.Email)
if err == nil {
c.JSON(http.StatusConflict, gin.H{"error": "邮箱已被注册"})
return
}
// After:
existingUser, err := s.database.GetUserByEmail(req.Email)
if err == nil {
if !existingUser.OTPVerified {
// Return OTP to complete registration
qrCodeURL := auth.GetOTPQRCodeURL(existingUser.OTPSecret, req.Email)
c.JSON(http.StatusOK, gin.H{
"user_id": existingUser.ID,
"otp_secret": existingUser.OTPSecret,
"qr_code_url": qrCodeURL,
"message": "检测到未完成的注册，请继续完成OTP设置",
})
return
}
c.JSON(http.StatusConflict, gin.H{"error": "邮箱已被注册"})
return
}
```
**Testing Scenario:**
1. User POST /api/register with email + password
2. User receives OTP QR code but closes browser (interrupts)
3. User POST /api/register again with same email + password
4. ✅ Now returns original OTP instead of error
5. User can complete registration via /api/complete-registration
**Security:**
✅ No security issue - still requires OTP verification
✅ Only returns OTP for unverified accounts
✅ Password not validated on re-fetch (same as initial registration)
**Impact:**
✅ Users can recover from interrupted registration
✅ Better UX for registration flow
✅ No breaking changes to existing verified users
**API Changes:**
- POST /api/register response for unverified users:
- Status: 200 OK (was: 409 Conflict)
- Body includes: user_id, otp_secret, qr_code_url, message
Fixes#615
Co-Authored-By: tinkle-community <tinklefund@gmail.com>
* test(api): add comprehensive unit tests for OTP re-fetch logic
- Test OTP re-fetch logic for unverified users
- Test OTP verification state handling
- Test complete registration flow scenarios
- Test edge cases (ID=0, empty OTPSecret, verified users)
All 11 test cases passed, covering:
1. OTPRefetchLogic (3 cases): new user, unverified refetch, verified rejection
2. OTPVerificationStates (2 cases): verified/unverified states
3. RegistrationFlow (3 cases): first registration, interrupted resume, duplicate attempt
4. EdgeCases (3 cases): validates behavior with edge conditions
Related to PR #653 - ensures proper OTP re-fetch behavior for unverified users.
Co-Authored-By: tinkle-community <tinklefund@gmail.com>
* style: apply go fmt after rebase
Co-Authored-By: tinkle-community <tinklefund@gmail.com>
---------
Co-authored-by: ZhouYongyou <128128010+zhouyongyou@users.noreply.github.com>
Co-authored-by: tinkle-community <tinklefund@gmail.com>
* fix(database): prevent data loss on Docker restart with WAL mode and graceful shutdown
Fixes#816
## Problem
Exchange API keys and private keys were being lost after `docker compose restart`.
This P0 bug posed critical security and operational risks.
### Root Cause
1. **SQLite journal_mode=delete**: Traditional rollback journal doesn't protect
against data loss during non-graceful shutdowns
2. **Incomplete graceful shutdown**: Application relied on `defer database.Close()`
which may not execute before process termination
3. **Docker grace period**: Default 10s may not be sufficient for cleanup
### Data Loss Scenario
```
User updates exchange config → Backend writes to SQLite → Data in buffer (not fsynced)
→ Docker restart (SIGTERM) → App exits → SQLite never flushes → Data lost
```
## Solution
### 1. Enable WAL Mode (Primary Fix)
- **Before**: `journal_mode=delete` (rollback journal)
- **After**: `journal_mode=WAL` (Write-Ahead Logging)
**Benefits:**
- ✅ Crash-safe even during power loss
- ✅ Better concurrent write performance
- ✅ Atomic commits with durability guarantees
### 2. Improve Graceful Shutdown
**Before:**
```go
<-sigChan
traderManager.StopAll()
// defer database.Close() may not execute in time
```
**After:**
```go
<-sigChan
traderManager.StopAll() // Step 1: Stop traders
server.Shutdown() // Step 2: Stop HTTP server (new)
database.Close() // Step 3: Explicit database close (new)
```
### 3. Increase Docker Grace Period
```yaml
stop_grace_period: 30s # Allow 30s for graceful shutdown
```
## Changes
### config/database.go
- Enable `PRAGMA journal_mode=WAL` on database initialization
- Set `PRAGMA synchronous=FULL` for data durability
- Add log message confirming WAL mode activation
### api/server.go
- Add `httpServer *http.Server` field to Server struct
- Implement `Shutdown()` method with 5s timeout
- Replace `router.Run()` with `httpServer.ListenAndServe()` for graceful shutdown support
- Add `context` import for shutdown context
### main.go
- Add explicit shutdown sequence:
1. Stop all traders
2. Shutdown HTTP server (new)
3. Close database connection (new)
- Add detailed logging for each shutdown step
### docker-compose.yml
- Add `stop_grace_period: 30s` to backend service
### config/database_test.go (TDD)
- `TestWALModeEnabled`: Verify WAL mode is active
- `TestSynchronousMode`: Verify synchronous=FULL setting
- `TestDataPersistenceAcrossReopen`: Simulate Docker restart scenario
- `TestConcurrentWritesWithWAL`: Verify concurrent write handling
## Test Results
```bash
$ go test -v ./config
=== RUN TestWALModeEnabled
--- PASS: TestWALModeEnabled (0.25s)
=== RUN TestSynchronousMode
--- PASS: TestSynchronousMode (0.06s)
=== RUN TestDataPersistenceAcrossReopen
--- PASS: TestDataPersistenceAcrossReopen (0.05s)
=== RUN TestConcurrentWritesWithWAL
--- PASS: TestConcurrentWritesWithWAL (0.09s)
PASS
```
All 16 tests pass (including 9 existing + 4 new WAL tests + 3 concurrent tests).
## Impact
**Before:**
- 🔴 Exchange credentials lost on restart
- 🔴 Trading operations disrupted
- 🔴 Security risk from credential re-entry
**After:**
- ✅ Data persistence guaranteed
- ✅ No credential loss after restart
- ✅ Safe graceful shutdown in all scenarios
- ✅ Better concurrent performance
## Acceptance Criteria
- [x] WAL mode enabled in database initialization
- [x] Graceful shutdown explicitly closes database
- [x] Unit tests verify data persistence across restarts
- [x] Docker grace period increased to 30s
- [x] All tests pass
## Deployment Notes
After deploying this fix:
1. Rebuild Docker image: `./start.sh start --build`
2. Existing `config.db` will be automatically converted to WAL mode
3. WAL files (`config.db-wal`, `config.db-shm`) will be created
4. No manual intervention required
## References
- SQLite WAL Mode: https://www.sqlite.org/wal.html
- Go http.Server Graceful Shutdown: https://pkg.go.dev/net/http#Server.Shutdown
* Add config.db* to gitignore
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