[9.2] [Discover][APM] Fix message warning not appearing from context (#242173) (#242232)

# Backport

This will backport the following commits from `main` to `9.2`:
- [[Discover][APM] Fix message warning not appearing from context
(#242173)](#242173)

<!--- Backport version: 9.6.6 -->

### Questions ?
Please refer to the [Backport tool
documentation](https://github.com/sorenlouv/backport)

<!--BACKPORT [{"author":{"name":"Gonçalo Rica Pais da
Silva","email":"[email protected]"},"sourceCommit":{"committedDate":"2025-11-07T09:06:18Z","message":"[Discover][APM]
Fix message warning not appearing from context (#242173)\n\n##
Summary\n\nFixes the warning messages not appearing in the Unified Trace
Waterfall,\nas it wasn't getting passed into the context
correctly.\n\n<img width=\"475\" height=\"193\"
alt=\"image\"\nsrc=\"https://github.com/user-attachments/assets/f35d4a99-2b74-4f54-9cf0-16902d95bbe0\"\n/>\n\n##
How to test\n\n- Go to Discover whilst on Observability space, select an
OTEL traces\nindex in either classic or ES|QL mode\n- Open a trace
document and view the overview, find until you get a\ntrace with
partial/incomplete data.\n- The warning should show in full on the
focused trace waterfall, and on\nthe full trace
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Fix message warning not appearing from
context","number":242173,"url":"https://github.com/elastic/kibana/pull/242173","mergeCommit":{"message":"[Discover][APM]
Fix message warning not appearing from context (#242173)\n\n##
Summary\n\nFixes the warning messages not appearing in the Unified Trace
Waterfall,\nas it wasn't getting passed into the context
correctly.\n\n<img width=\"475\" height=\"193\"
alt=\"image\"\nsrc=\"https://github.com/user-attachments/assets/f35d4a99-2b74-4f54-9cf0-16902d95bbe0\"\n/>\n\n##
How to test\n\n- Go to Discover whilst on Observability space, select an
OTEL traces\nindex in either classic or ES|QL mode\n- Open a trace
document and view the overview, find until you get a\ntrace with
partial/incomplete data.\n- The warning should show in full on the
focused trace waterfall, and on\nthe full trace
waterfall","sha":"698bc828630f25a82afc556b739e87177577a1f7"}},"sourceBranch":"main","suggestedTargetBranches":["8.19","9.1","9.2"],"targetPullRequestStates":[{"branch":"main","label":"v9.3.0","branchLabelMappingKey":"^v9.3.0$","isSourceBranch":true,"state":"MERGED","url":"https://github.com/elastic/kibana/pull/242173","number":242173,"mergeCommit":{"message":"[Discover][APM]
Fix message warning not appearing from context (#242173)\n\n##
Summary\n\nFixes the warning messages not appearing in the Unified Trace
Waterfall,\nas it wasn't getting passed into the context
correctly.\n\n<img width=\"475\" height=\"193\"
alt=\"image\"\nsrc=\"https://github.com/user-attachments/assets/f35d4a99-2b74-4f54-9cf0-16902d95bbe0\"\n/>\n\n##
How to test\n\n- Go to Discover whilst on Observability space, select an
OTEL traces\nindex in either classic or ES|QL mode\n- Open a trace
document and view the overview, find until you get a\ntrace with
partial/incomplete data.\n- The warning should show in full on the
focused trace waterfall, and on\nthe full trace
waterfall","sha":"698bc828630f25a82afc556b739e87177577a1f7"}},{"branch":"8.19","label":"v8.19.7","branchLabelMappingKey":"^v(\\d+).(\\d+).\\d+$","isSourceBranch":false,"state":"NOT_CREATED"},{"branch":"9.1","label":"v9.1.7","branchLabelMappingKey":"^v(\\d+).(\\d+).\\d+$","isSourceBranch":false,"state":"NOT_CREATED"},{"branch":"9.2","label":"v9.2.1","branchLabelMappingKey":"^v(\\d+).(\\d+).\\d+$","isSourceBranch":false,"state":"NOT_CREATED"}]}]
BACKPORT-->

Co-authored-by: Gonçalo Rica Pais da Silva <[email protected]>

Author: kibanamachine

x-pack/solutions/observability/plugins/apm/public/components/shared/trace_waterfall/trace_waterfall_context.tsx

@@ -86,7 +86,7 @@ export function TraceWaterfallContextProvider({
   showLegend,
   serviceName,
 }: Props) {
-  const { duration, traceWaterfall, maxDepth, rootItem, legends, colorBy, traceState } =
+  const { duration, traceWaterfall, maxDepth, rootItem, legends, colorBy, traceState, message } =
     useTraceWaterfall({
       traceItems,
     });
@@ -116,6 +116,7 @@ export function TraceWaterfallContextProvider({
         colorBy,
         showLegend,
         serviceName,
+        message,
       }}
     >
       {children}