perf: 静态路由修改为简单的map缓存

keepalive_issue_demo/client.v

@@ -0,0 +1,34 @@
+// Minimal client example - Test Keep-Alive connection reuse
+module main
+
+import net.http
+import time
+
+fn main() {
+	println('=== V HTTP Keep-Alive Issue Demo ===\n')
+	println('Sending 5 consecutive requests, observe the time for each...\n')
+	
+	url := 'http://127.0.0.1:8080/'
+	
+	for i in 1 .. 6 {
+		start := time.now()
+		
+		resp := http.get(url) or {
+			println('Request failed: ${err}')
+			continue
+		}
+		
+		elapsed := time.since(start)
+		println('Request #${i}: ${elapsed.milliseconds()}ms - Status: ${resp.status_code}')
+	}
+	
+	println('\n--- Analysis ---')
+	println('If Keep-Alive works correctly:')
+	println('  - First request: ~300ms (establish TCP connection)')
+	println('  - Subsequent requests: ~1-10ms (reuse connection)')
+	println('')
+	println('Actual behavior (V language current):')
+	println('  - Every request takes ~300ms (reconnect each time)')
+	println('')
+	println('Reason: net.http.Server calls conn.close() after each request')
+}