data pipeline refactor and fix

gateway/src/main.ts

@@ -16,6 +16,8 @@ import { ContainerManager } from './k8s/container-manager.js';
 import { ZMQRelayClient } from './clients/zmq-relay-client.js';
 import { IcebergClient } from './clients/iceberg-client.js';
 import { ConversationStore } from './harness/memory/conversation-store.js';
+import { BlobStore } from './harness/memory/blob-store.js';
+import { ConversationService } from './services/conversation-service.js';
 import { AgentHarness, type HarnessSessionConfig } from './harness/agent-harness.js';
 import { OHLCService } from './services/ohlc-service.js';
 import { SymbolIndexService } from './services/symbol-index-service.js';
@@ -369,12 +371,17 @@ try {
 const conversationStore = new ConversationStore(redis, app.log, icebergClient);
 app.log.debug('Conversation store initialized');
 
+const blobStore = new BlobStore(icebergClient, app.log);
+const conversationService = new ConversationService(conversationStore, blobStore, app.log);
+app.log.debug('Blob store and conversation service initialized');
+
 // Harness factory: captures infrastructure deps; channel handlers stay infrastructure-free
 function createHarness(sessionConfig: HarnessSessionConfig): AgentHarness {
   return new AgentHarness({
     ...sessionConfig,
     providerConfig: config.providerConfig,
     conversationStore,
+    blobStore,
     historyLimit: config.conversationHistoryLimit,
   });
 }
@@ -391,6 +398,7 @@ const websocketHandler = new WebSocketHandler({
   createHarness,
   ohlcService,  // Optional
   symbolIndexService,  // Optional
+  conversationService,  // Optional - for history replay on reconnect
 });
 app.log.debug('WebSocket handler initialized');
 
@@ -614,6 +622,19 @@ try {
       mcpTools: [],
     });
 
+    // Strategy subagent: all strategy-related MCP tools
+    toolRegistry.registerAgentTools({
+      agentName: 'strategy',
+      platformTools: [],
+      mcpTools: [
+        'python_write', 'python_edit', 'python_read', 'python_list',
+        'python_log', 'python_revert',
+        'backtest_strategy', 'activate_strategy', 'deactivate_strategy',
+        'list_active_strategies', 'get_backtest_results',
+        'get_strategy_trades', 'get_strategy_events',
+      ],
+    });
+
     app.log.info(
       {
         agents: toolRegistry.getRegisteredAgents(),