feat: add audit log viewing for vendor and tenant personas

Vendor sees all audit events with tenant filter at /vendor/audit.
Tenant admin sees only their own events at /tenant/audit.
Both support pagination, action/result filters, and text search.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

ui/src/types/api.ts

@@ -93,3 +93,35 @@ export interface TenantSettings {
   serverEndpoint: string | null;
   createdAt: string;
 }
+
+// Audit log types
+export interface AuditLogEntry {
+  id: string;
+  actorEmail: string | null;
+  tenantId: string | null;
+  action: string;
+  resource: string | null;
+  environment: string | null;
+  result: string;
+  sourceIp: string | null;
+  createdAt: string;
+}
+
+export interface AuditLogPage {
+  content: AuditLogEntry[];
+  page: number;
+  size: number;
+  totalElements: number;
+  totalPages: number;
+}
+
+export interface AuditLogFilters {
+  action?: string;
+  result?: string;
+  search?: string;
+  from?: string;
+  to?: string;
+  tenantId?: string;
+  page?: number;
+  size?: number;
+}