Align webview console and tab lifecycle

cdp.go

@@ -322,6 +322,9 @@ func (c *CDPClient) CloseTab() error {
 	if err != nil {
 		return coreerr.E("CDPClient.CloseTab", "failed to determine target ID", err)
 	}
+	defer func() {
+		_ = c.Close()
+	}()
 
 	ctx, cancel := context.WithTimeout(c.ctx, debugEndpointTimeout)
 	defer cancel()
@@ -336,8 +339,7 @@ func (c *CDPClient) CloseTab() error {
 	if success, ok := result["success"].(bool); ok && !success {
 		return coreerr.E("CDPClient.CloseTab", "target close was not acknowledged", nil)
 	}
-
-	return c.Close()
+	return nil
 }
 
 // ListTargets returns all available targets.

console.go

@@ -61,14 +61,13 @@ func NewConsoleWatcher(wv *Webview) *ConsoleWatcher {
 	return watcher
 }
 
-// normalizeConsoleType converts CDP event types to package-level values.
+// normalizeConsoleType converts CDP event types to the canonical package value.
 //
-// This keeps the legacy warn alias for compatibility. Use canonicalConsoleType
-// when the exact RFC type names are required.
+// It accepts legacy warn aliases but stores the RFC form, warning.
 func normalizeConsoleType(raw string) string {
 	normalized := strings.ToLower(core.Trim(core.Sprint(raw)))
 	if normalized == "warning" {
-		return "warn"
+		return "warning"
 	}
 	return normalized
 }