[BUG] execute_ppl_query context provider tool returns 200 OK despite query validation errors

[goyamegh]

Describe the bug

The execute_ppl_query tool shows 200 OK status even when the PPL query fails with validation or syntax errors. This creates a misleading success indication in the UI while the query actually failed.

Expected behavior

The API should return an appropriate error status code and feed the information about query failures by passing as context (opened separately #10615 )

Actual behavior

• UI shows "Invalid Query" error state
• Assistant shows tool execution as "completed" despite failure

Screenshots

Proposed Solution

Return

Labels

bug, api, observability, logs, query-language, error-handling