Format history size bytes to human-readable units (#3227)

* Add comma separators to history size bytes in workflow summary and details

Fixes DT-3634 - historySizeBytes was displayed as a raw integer (e.g. 1234567)
in the workflow summary accordion and lines-and-dots details panel. Now uses
toLocaleString() to add comma separators (e.g. 1,234,567), making the byte
count easier to read while preserving the exact value.

* Remove unused workflow-summary.svelte component

* Use formatBytes for history size display, remove '(Bytes)' from label

Show history size as human-readable units (e.g. 1.18 MB) instead of
raw byte count. Update label from 'History Size (Bytes)' to 'History Size'
since the unit is now shown in the value.

* Rename i18n key history-size-bytes to history-size

Author: andrewzamojc

src/lib/components/lines-and-dots/workflow-details.svelte

@@ -13,6 +13,7 @@
     timestampFormat,
   } from '$lib/stores/time-format';
   import type { WorkflowExecution } from '$lib/types/workflows';
+  import { formatBytes } from '$lib/utilities/format-bytes';
   import { formatDate } from '$lib/utilities/format-date';
   import {
     formatDistanceAbbreviated,
@@ -80,6 +81,12 @@
       'TemporalWorkflowVersioningBehavior'
     ],
   );
+
+  const historySizeFormatted = $derived(
+    workflow?.historySizeBytes
+      ? formatBytes(parseInt(workflow.historySizeBytes, 10))
+      : '',
+  );
   let totalActions = $derived(
     $fullEventHistory.reduce((acc, e) => e.billableActions + acc, 0).toString(),
   );
@@ -280,8 +287,8 @@
   </DetailListColumn>
 
   <DetailListColumn>
-    <DetailListLabel>{translate('common.history-size-bytes')}</DetailListLabel>
-    <DetailListTextValue text={workflow?.historySizeBytes} />
+    <DetailListLabel>{translate('common.history-size')}</DetailListLabel>
+    <DetailListTextValue text={historySizeFormatted} />
 
     {#if !$isCloud}
       <DetailListLabel

src/lib/components/workflow/workflow-summary.svelte

@@ -174,7 +174,7 @@ export const Strings = {
   'more-options': 'More options',
   download: 'Download',
   duration: 'Duration',
-  'history-size-bytes': 'History Size (Bytes)',
+  'history-size': 'History Size',
   'execution-details': 'Execution Details',
   day: 'Day',
   night: 'Night',