feat: OnyvaLeads customer UI — Suche + Leadspeicher

- New Topbar: logo, 2-tab pill switcher, live "Neu" badge
- /suche page: SearchCard, LoadingCard, ExamplePills
- /leadspeicher page: full leads table with filters, pagination
- StatusBadge, StatusPopover, LeadSidePanel, BulkActionBar
- POST /api/search: unified search entry point → serp-enrich
- Remove Sidebar + old TopBar from layout
- Title: OnyvaLeads, redirect / → /suche

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

components/leadspeicher/StatusBadge.tsx

@@ -0,0 +1,54 @@
+"use client";
+
+export type LeadStatus = "new" | "contacted" | "in_progress" | "not_relevant" | "converted";
+
+interface StatusConfig {
+  label: string;
+  background: string;
+  color: string;
+}
+
+export const STATUS_MAP: Record<string, StatusConfig> = {
+  new:          { label: "Neu",             background: "#1e3a5f", color: "#93c5fd" },
+  contacted:    { label: "Kontaktiert",     background: "#064e3b", color: "#6ee7b7" },
+  in_progress:  { label: "In Bearbeitung",  background: "#451a03", color: "#fcd34d" },
+  not_relevant: { label: "Nicht relevant",  background: "#1e1e2e", color: "#6b7280" },
+  converted:    { label: "Konvertiert",     background: "#2e1065", color: "#d8b4fe" },
+};
+
+export const STATUS_OPTIONS = [
+  { value: "new",          label: "Neu" },
+  { value: "contacted",    label: "Kontaktiert" },
+  { value: "in_progress",  label: "In Bearbeitung" },
+  { value: "not_relevant", label: "Nicht relevant" },
+  { value: "converted",    label: "Konvertiert" },
+];
+
+interface StatusBadgeProps {
+  status: string;
+  onClick?: (e: React.MouseEvent) => void;
+}
+
+export function StatusBadge({ status, onClick }: StatusBadgeProps) {
+  const cfg = STATUS_MAP[status] ?? STATUS_MAP.new;
+  return (
+    <span
+      onClick={onClick}
+      style={{
+        display: "inline-flex",
+        alignItems: "center",
+        padding: "3px 10px",
+        borderRadius: 20,
+        fontSize: 12,
+        fontWeight: 500,
+        background: cfg.background,
+        color: cfg.color,
+        cursor: onClick ? "pointer" : "default",
+        userSelect: "none",
+        whiteSpace: "nowrap",
+      }}
+    >
+      {cfg.label}
+    </span>
+  );
+}