feat: sample sensitive columns progressively

frontend/src/shell/database-management/SensitiveDataReviewDrawer.test.tsx

@@ -21,6 +21,7 @@ const suggestions: SensitivityReviewItem[] = [
     assessment: "sensitive",
     evidence: [{ kind: "content", ruleId: "pii.email" }],
     observedValues: 1,
+    coverage: "sampled",
   },
   {
     columnId: "22222222-2222-4222-8222-222222222222",
@@ -33,6 +34,7 @@ const suggestions: SensitivityReviewItem[] = [
     assessment: "sensitive",
     evidence: [{ kind: "metadata", ruleId: "metadata.health" }],
     observedValues: 0,
+    coverage: "metadata",
   },
 ];
 

frontend/src/shell/database-management/SensitiveDataReviewDrawer.tsx

@@ -183,7 +183,7 @@ export function SensitiveDataReviewDrawer({
                           ? suggestion.evidence.map((item) => item.label
                             ? `${item.ruleId} (${item.label}${item.confidence === undefined ? "" : ` ${Math.round(item.confidence * 100)}%`})`
                             : item.ruleId).join(", ")
-                          : "no sensitive match"}. Observed values: {suggestion.observedValues}.
+                          : "no sensitive match"}. Coverage: {suggestion.coverage.replace("_", " ")}. Observed values: {suggestion.observedValues}.
                       </p>
                     </div>
                     <span className={`rounded px-2 py-0.5 text-[11px] font-semibold ${changedFromCurrent ? "bg-amber-500/12 text-amber-800 dark:text-amber-300" : "bg-muted text-muted-foreground"}`}>

frontend/src/shell/database-management/SensitivityAnalysisHistoryDrawer.tsx

@@ -145,7 +145,7 @@ export function SensitivityAnalysisHistoryDrawer({
     ["total", "Total columns"],
     ["suggestedSensitive", "Sensitive"],
     ["suggestedNonSensitive", "Not sensitive"],
-    ["unknown", "Unknown"],
+    ["unknown", "Unprocessed"],
   ] as const;
   return (
     <FleetLedgerDrawer