Add IP check to diagnostics

src/server.ts

@@ -123,23 +123,28 @@ const server = createServer(async (req: IncomingMessage, res: ServerResponse) =>
                     uptime: process.uptime()
                 };
     
-                // 2. Check Network & DuckDuckGo Connectivity
-                try {
-                    const start = Date.now();
-                    const res = await fetch("https://duckduckgo.com/duckchat/v1/status?q=1", {
-                        headers: { "User-Agent": "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/121.0.0.0 Safari/537.36" }
-                    });
-                    const hash = res.headers.get("x-vqd-hash-1");
-                    report.checks.duckduckgo = {
-                        status: res.status,
-                        latency_ms: Date.now() - start,
-                        vqd_present: !!hash,
-                        ip_blocked: res.status === 403 || res.status === 418
-                    };
-                } catch (e: any) {
-                    report.checks.duckduckgo = { error: e.message };
-                }
-    
+                            // 2. Check Network & DuckDuckGo Connectivity
+                            try {
+                                const start = Date.now();
+                                
+                                // Check IP
+                                const ipRes = await fetch("https://api.ipify.org?format=json");
+                                const ipData = await ipRes.json() as any;
+                                
+                                const res = await fetch("https://duckduckgo.com/duckchat/v1/status?q=1", {
+                                    headers: { "User-Agent": "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/121.0.0.0 Safari/537.36" }
+                                });
+                                const hash = res.headers.get("x-vqd-hash-1");
+                                report.checks.duckduckgo = {
+                                    status: res.status,
+                                    latency_ms: Date.now() - start,
+                                    vqd_present: !!hash,
+                                    ip_blocked: res.status === 403 || res.status === 418,
+                                    server_ip: ipData.ip
+                                };
+                            } catch (e: any) {
+                                report.checks.duckduckgo = { error: e.message };
+                            }    
                 // 3. Check JSDOM & Canvas Mock
                 try {
                     const { JSDOM } = require("jsdom");