feat(log): 访问日志携带 ua，挂 Seq 后控制台放宽到 Info+

- WebConnectLog 访问日志新增 ua 字段（User-Agent 按 rune 截断 200 字符），便于按设备归因
- SetSeqWriter 挂 Seq 后业务控制台由 Warn+ 放宽为 Info+，Debug/SQL 仍只进 Seq 与文件
- 新增 Logger.SetConsoleMinLevel，访问日志控制台单独保持 Warn+

Co-authored-by: Cursor <cursoragent@cursor.com>

log/capture_test.go

@@ -209,6 +209,8 @@ func TestLevelFilterWriter_WarnOnly(t *testing.T) {
 	}
 }
 
+// TestSetSeqWriter_QuietsConsoleKeepsSeqFull 验证挂 Seq 后控制台放宽到 Info+：
+// Debug 不上控制台，Info/Warn 均可见，Seq 侧全量收到（含 Debug）。
 func TestSetSeqWriter_QuietsConsoleKeepsSeqFull(t *testing.T) {
 	var mu sync.Mutex
 	var gotBody string
@@ -223,13 +225,14 @@ func TestSetSeqWriter_QuietsConsoleKeepsSeqFull(t *testing.T) {
 	consoleBuf := &captureBuf{}
 	l.console.inner = consoleBuf
 	l.SetSeqWriter(srv.URL, "", "test:quiet")
-	l.Info().Msg("info-to-seq-only")
+	l.Debug().Msg("debug-to-seq-only")
+	l.Info().Msg("info-both")
 	l.Warn().Msg("warn-both")
 
 	deadline := time.Now().Add(3 * time.Second)
 	for time.Now().Before(deadline) {
 		mu.Lock()
-		ok := strings.Contains(gotBody, "info-to-seq-only") && strings.Contains(gotBody, "warn-both")
+		ok := strings.Contains(gotBody, "debug-to-seq-only") && strings.Contains(gotBody, "info-both") && strings.Contains(gotBody, "warn-both")
 		mu.Unlock()
 		if ok {
 			break
@@ -239,22 +242,28 @@ func TestSetSeqWriter_QuietsConsoleKeepsSeqFull(t *testing.T) {
 	mu.Lock()
 	body := gotBody
 	mu.Unlock()
-	if !strings.Contains(body, "info-to-seq-only") || !strings.Contains(body, "warn-both") {
+	if !strings.Contains(body, "debug-to-seq-only") || !strings.Contains(body, "info-both") || !strings.Contains(body, "warn-both") {
 		t.Fatalf("Seq incomplete: %q", body)
 	}
 	consoleBuf.mu.Lock()
 	defer consoleBuf.mu.Unlock()
 	for _, line := range consoleBuf.lines {
-		if strings.Contains(line, "info-to-seq-only") {
-			t.Fatalf("Info leaked to console: %v", consoleBuf.lines)
+		if strings.Contains(line, "debug-to-seq-only") {
+			t.Fatalf("Debug leaked to console: %v", consoleBuf.lines)
 		}
 	}
-	foundWarn := false
+	foundInfo, foundWarn := false, false
 	for _, line := range consoleBuf.lines {
+		if strings.Contains(line, "info-both") {
+			foundInfo = true
+		}
 		if strings.Contains(line, "warn-both") {
 			foundWarn = true
 		}
 	}
+	if !foundInfo {
+		t.Fatalf("Info missing on console: %v", consoleBuf.lines)
+	}
 	if !foundWarn {
 		t.Fatalf("Warn missing on console: %v", consoleBuf.lines)
 	}