v0.7.1 client readline removed for cross-platform compatibility with wasm, client logic fix fixes and refactor

internal/client/display/colors.go

@@ -1,6 +1,11 @@
 // FILE: lixenwraith/chess/internal/client/display/colors.go
 package display
 
+import (
+	"fmt"
+	"strings"
+)
+
 // Terminal color codes
 const (
 	Reset   = "\033[0m"
@@ -13,6 +18,35 @@ const (
 	White   = "\033[37m"
 )
 
+// C wraps text with color and reset codes
+func C(color, text string) string {
+	return color + text + Reset
+}
+
+// Print outputs colored text immediately
+func Print(color, format string, args ...any) {
+	fmt.Printf(C(color, format), args...)
+}
+
+// Println outputs colored text with newline
+func Println(color, format string, args ...any) {
+	fmt.Println(C(color, fmt.Sprintf(format, args...)))
+}
+
+// Build creates a multi-colored string
+type Builder struct {
+	parts []string
+}
+
+func (b *Builder) Add(color, text string) *Builder {
+	b.parts = append(b.parts, C(color, text))
+	return b
+}
+
+func (b *Builder) String() string {
+	return strings.Join(b.parts, "")
+}
+
 // Prompt returns a colored prompt string
 func Prompt(text string) string {
 	return Yellow + text + Yellow + " > " + Reset