feat: initial commit - Scrapyd UI web interface

- Next.js 16.0.1 + React 19.2.0 + Tailwind CSS 4.1.16
- Complete Scrapyd API integration (all 12 endpoints)
- Dashboard with real-time job monitoring
- Projects management (upload, list, delete)
- Spiders management with scheduling
- Jobs monitoring with filtering and cancellation
- System status monitoring
- Dark/light theme toggle with next-themes
- Server-side authentication via environment variables
- Docker deployment with multi-stage builds
- GitHub Actions CI/CD workflow

🤖 Generated with [Claude Code](https://claude.com/claude-code)

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

app/api/scrapyd/spiders/route.ts

@@ -0,0 +1,26 @@
+import { NextRequest, NextResponse } from "next/server";
+import { ScrapydClient } from "@/lib/scrapyd-client";
+
+export async function GET(request: NextRequest) {
+  try {
+    const searchParams = request.nextUrl.searchParams;
+    const project = searchParams.get("project");
+    const version = searchParams.get("version") || undefined;
+
+    if (!project) {
+      return NextResponse.json(
+        { error: "Project name is required" },
+        { status: 400 }
+      );
+    }
+
+    const data = await ScrapydClient.listSpiders({ project, version });
+    return NextResponse.json(data);
+  } catch (error) {
+    console.error("Failed to fetch spiders:", error);
+    return NextResponse.json(
+      { error: "Failed to fetch spiders" },
+      { status: 500 }
+    );
+  }
+}