mein-solar: full feature set

- Schema: companyType, topics, salesScore, salesReason, offerPackage, approved, approvedAt, SearchHistory table
- /api/search-history: GET (by mode) + POST (save query)
- /api/ai-search: stadtwerke/industrie/custom prompts with history dedup
- /api/enrich-leads: website scraping + GPT-4o-mini enrichment (fire-and-forget after each job)
- /api/generate-email: personalized outreach via GPT-4o
- Suche page: 3 mode tabs (Stadtwerke/Industrie/Freie Suche), Alle-Bundesländer queue button, AiSearchModal gets searchMode + history
- Leadspeicher: Bewertung dots column, Paket badge column, Freigeben toggle button, email generator in SidePanel, approved-only export option
- Leads API: approvedOnly + companyType filters, new fields in PATCH

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

app/api/search-history/route.ts

@@ -0,0 +1,47 @@
+import { NextRequest, NextResponse } from "next/server";
+import { prisma } from "@/lib/db";
+
+export async function GET(req: NextRequest) {
+  try {
+    const { searchParams } = new URL(req.url);
+    const mode = searchParams.get("mode") || "";
+
+    const where = mode ? { searchMode: mode } : {};
+
+    const history = await prisma.searchHistory.findMany({
+      where,
+      orderBy: { executedAt: "desc" },
+      take: 50,
+      select: { query: true, region: true, searchMode: true, executedAt: true },
+    });
+
+    return NextResponse.json(history);
+  } catch (err) {
+    console.error("GET /api/search-history error:", err);
+    return NextResponse.json({ error: "Failed to fetch search history" }, { status: 500 });
+  }
+}
+
+export async function POST(req: NextRequest) {
+  try {
+    const body = await req.json() as { query: string; region: string; searchMode: string };
+    const { query, region, searchMode } = body;
+
+    if (!query?.trim() || !searchMode?.trim()) {
+      return NextResponse.json({ error: "query und searchMode sind erforderlich" }, { status: 400 });
+    }
+
+    const entry = await prisma.searchHistory.create({
+      data: {
+        query: query.trim(),
+        region: (region || "").trim(),
+        searchMode: searchMode.trim(),
+      },
+    });
+
+    return NextResponse.json(entry);
+  } catch (err) {
+    console.error("POST /api/search-history error:", err);
+    return NextResponse.json({ error: "Failed to save search history" }, { status: 500 });
+  }
+}