bugfixes; research subproc; higher sandbox limits

web/src/components/ChartView.vue

@@ -1,5 +1,5 @@
 <script setup lang="ts">
-import { ref, onMounted, onBeforeUnmount, watch } from 'vue'
+import { ref, onMounted, onBeforeUnmount, watch, type WatchStopHandle } from 'vue'
 import Card from 'primevue/card'
 import { createTradingViewDatafeed } from '../composables/useTradingViewDatafeed'
 import { useTradingViewShapes } from '../composables/useTradingViewShapes'
@@ -11,10 +11,11 @@ import type { IChartingLibraryWidget } from '../types/tradingview'
 import { intervalToSeconds } from '../utils'
 import { wsManager } from '../composables/useWebSocket'
 
-// Convert seconds to TradingView interval string
+// Convert seconds to TradingView interval string.
+// TradingView uses plain minute numbers ("60", "240") for intraday,
+// and "1D", "2D" etc for daily. Never use "H" suffix — it's not in supported_resolutions.
 function secondsToInterval(seconds: number): string {
   if (seconds % 86400 === 0) return `${seconds / 86400}D`
-  if (seconds % 3600 === 0) return `${seconds / 3600}H`
   return `${seconds / 60}` // plain number = minutes
 }
 
@@ -27,9 +28,23 @@ let shapeCleanup: (() => void) | null = null // Cleanup function for shape sync
 let indicatorCleanup: (() => void) | null = null // Cleanup function for indicator sync
 let customIndicatorCleanup: (() => void) | null = null // Cleanup for custom TV studies
 let chartInitialized = false // Guard against double-init on reconnect
+let symbolWatcher: WatchStopHandle | null = null
 
 const maybeInitChart = () => {
   if (chartInitialized || !chartContainer.value) return
+  if (!chartStore.symbol) {
+    // Defer until backend provides a symbol
+    if (!symbolWatcher) {
+      symbolWatcher = watch(() => chartStore.symbol, (sym) => {
+        if (sym) {
+          symbolWatcher?.()
+          symbolWatcher = null
+          maybeInitChart()
+        }
+      })
+    }
+    return
+  }
   chartInitialized = true
   initChart()
 }
@@ -205,6 +220,10 @@ function setupStoreWatchers() {
 }
 
 onBeforeUnmount(() => {
+  if (symbolWatcher) {
+    symbolWatcher()
+    symbolWatcher = null
+  }
   // Cleanup shape synchronization
   if (shapeCleanup) {
     shapeCleanup()