feat(mcp): record SQL executions in query history

apps/desktop/src/components/editor/QueryHistory.vue

@@ -16,6 +16,7 @@ import { canRollbackHistoryEntry } from "@/lib/history/historyAiAnalysis";
 import { hasHistoryDateRange, historyDateRangeIsValid, type HistoryDateRange } from "@/lib/history/historyTimeRange";
 import { HISTORY_ROW_HEIGHT, HISTORY_SCROLL_BUFFER, shouldVirtualizeHistory } from "@/lib/history/historyVirtualList";
 import { historyConnectionHasSelectedDatabase } from "@/lib/history/historySearch";
+import { historyEntrySource } from "@/lib/history/historyEntrySource";
 import type { HistoryConnectionFilter, HistoryDatabaseFilter, HistoryEntry, HistorySearchRequest } from "@/lib/backend/api";
 import { copyToClipboard } from "@/lib/common/clipboard";
 import { executeWithProductionSqlGuard } from "@/lib/database/productionExecutionGuard";
@@ -605,6 +606,9 @@ onBeforeUnmount(() => {
                   {{ kindShortLabel(entry) }}
                 </span>
                 <span class="truncate font-medium">{{ entryTitle(entry) }}</span>
+                <span v-if="historyEntrySource(entry)" class="inline-flex h-5 shrink-0 items-center rounded border border-primary/30 bg-primary/5 px-1 text-[10px] font-medium text-primary">
+                  {{ historyEntrySource(entry) }}
+                </span>
                 <span class="ml-auto shrink-0 text-muted-foreground">{{ formatTime(entry.executed_at) }}</span>
               </div>
               <div class="truncate font-mono text-muted-foreground">{{ entrySubtitle(entry) }}</div>

apps/desktop/src/lib/history/__tests__/historyEntrySource.spec.ts

@@ -0,0 +1,14 @@
+import { describe, expect, it } from "vitest";
+import { historyEntrySource } from "@/lib/history/historyEntrySource";
+
+describe("historyEntrySource", () => {
+  it("identifies MCP entries from history details", () => {
+    expect(historyEntrySource({ details_json: '{"source":"mcp"}' })).toBe("MCP");
+  });
+
+  it("ignores other, missing, or invalid details", () => {
+    expect(historyEntrySource({ details_json: '{"source":"desktop"}' })).toBeNull();
+    expect(historyEntrySource({ details_json: null })).toBeNull();
+    expect(historyEntrySource({ details_json: "{" })).toBeNull();
+  });
+});

apps/desktop/src/lib/history/historyEntrySource.ts

@@ -0,0 +1,11 @@
+import type { HistoryEntry } from "@/lib/backend/api";
+
+export function historyEntrySource(entry: Pick<HistoryEntry, "details_json">): "MCP" | null {
+  if (!entry.details_json) return null;
+  try {
+    const details = JSON.parse(entry.details_json) as { source?: unknown };
+    return details.source === "mcp" ? "MCP" : null;
+  } catch {
+    return null;
+  }
+}