feat: Complete Trading Bot v4 with Drift Protocol integration

Features:
- Autonomous trading system with Drift Protocol on Solana
- Real-time position monitoring with Pyth price feeds
- Dynamic stop-loss and take-profit management
- n8n workflow integration for TradingView signals
- Beautiful web UI for settings management
- REST API for trade execution and monitoring

- Next.js 15 with standalone output mode
- TypeScript with strict typing
- Docker containerization with multi-stage builds
- PostgreSQL database for trade history
- Singleton pattern for Drift client connection pooling
- BN.js for BigNumber handling (Drift SDK requirement)

- Configurable stop-loss and take-profit levels
- Breakeven trigger and profit locking
- Daily loss limits and trade cooldowns
- Slippage tolerance controls
- DRY_RUN mode for safe testing

- Real-time risk calculator
- Interactive sliders for all parameters
- Live preview of trade outcomes
- Position sizing and leverage controls
- Beautiful gradient design with Tailwind CSS

- POST /api/trading/execute - Execute trades
- POST /api/trading/close - Close positions
- GET /api/trading/positions - Monitor active trades
- GET /api/trading/check-risk - Validate trade signals
- GET /api/settings - View configuration
- POST /api/settings - Update configuration

- Fixed Borsh serialization errors (simplified order params)
- Resolved RPC rate limiting with singleton pattern
- Fixed BigInt vs BN type mismatches
- Corrected order execution flow
- Improved position state management

- Complete setup guides
- Docker deployment instructions
- n8n workflow configuration
- API reference documentation
- Risk management guidelines

- Runs on port 3001 (external), 3000 (internal)
- Uses Helius RPC for optimal performance
- Production-ready with error handling
- Health monitoring and logging

n8n-trader-workflow.json

@@ -0,0 +1,100 @@
+{
+  "name": "Trader",
+  "nodes": [
+    {
+      "parameters": {
+        "httpMethod": "POST",
+        "path": "3371ad7c-0866-4161-90a4-f251de4aceb8",
+        "options": {}
+      },
+      "id": "683db7ad-2df6-44c7-afaa-d2f40705f268",
+      "name": "Webhook",
+      "type": "n8n-nodes-base.webhook",
+      "typeVersion": 1,
+      "position": [
+        500,
+        460
+      ],
+      "webhookId": "3371ad7c-0866-4161-90a4-f251de4aceb8"
+    },
+    {
+      "parameters": {
+        "chatId": "579304651",
+        "text": "={{ $json.signal.startsWith(\"Buy\") ? \"🟢 \" + $json.signal : \"🔴 \" + $json.signal }}\n",
+        "additionalFields": {
+          "appendAttribution": false
+        }
+      },
+      "id": "e9caf28b-5731-46ba-bb31-b152fde4bae5",
+      "name": "Telegram",
+      "type": "n8n-nodes-base.telegram",
+      "typeVersion": 1.1,
+      "position": [
+        1300,
+        460
+      ],
+      "credentials": {
+        "telegramApi": {
+          "id": "Csk5cg4HtaSqP5jJ",
+          "name": "Telegram account"
+        }
+      }
+    },
+    {
+      "parameters": {
+        "fields": {
+          "values": [
+            {
+              "name": "signal",
+              "stringValue": "={{ $json.body.split('|')[0].trim() }}"
+            }
+          ]
+        },
+        "options": {}
+      },
+      "id": "1844fbcb-282b-4b01-9744-b21adda235e9",
+      "name": "Edit Fields",
+      "type": "n8n-nodes-base.set",
+      "typeVersion": 3.2,
+      "position": [
+        860,
+        460
+      ]
+    }
+  ],
+  "pinData": {},
+  "connections": {
+    "Webhook": {
+      "main": [
+        [
+          {
+            "node": "Edit Fields",
+            "type": "main",
+            "index": 0
+          }
+        ]
+      ]
+    },
+    "Edit Fields": {
+      "main": [
+        [
+          {
+            "node": "Telegram",
+            "type": "main",
+            "index": 0
+          }
+        ]
+      ]
+    }
+  },
+  "active": true,
+  "settings": {
+    "executionOrder": "v1"
+  },
+  "versionId": "b35ed14e-bd11-4601-a304-6263832f11b4",
+  "id": "Bg1iplLiwLdVexG1",
+  "meta": {
+    "instanceId": "e766d4f0b5def8ee8cb8561cd9d2b9ba7733e1907990b6987bca40175f82c379"
+  },
+  "tags": []
+}