v0.7.0 cli client with readline added, directory structure updated

internal/client/display/board.go

@@ -0,0 +1,54 @@
+// FILE: lixenwraith/chess/internal/client/display/board.go
+package display
+
+import (
+	"fmt"
+	"strings"
+)
+
+// RenderBoard renders an ASCII board with colored pieces
+func RenderBoard(asciiBoard string) {
+	lines := strings.Split(asciiBoard, "\n")
+
+	for i, line := range lines {
+		if strings.TrimSpace(line) == "" {
+			continue
+		}
+
+		isRankLine := (i == 0) || (i == 9)
+
+		// Process each character
+		for _, char := range line {
+			switch {
+			case char >= 'a' && char <= 'h' && isRankLine:
+				// File letters - Cyan
+				fmt.Printf("%s%c%s", Cyan, char, Reset)
+			case char >= 'A' && char <= 'Z':
+				// White pieces - Blue
+				fmt.Printf("%s%c%s", Blue, char, Reset)
+			case char >= 'a' && char <= 'z' && !isRankLine:
+				// Black pieces - Red
+				fmt.Printf("%s%c%s", Red, char, Reset)
+			case char == '.':
+				// Empty squares
+				fmt.Printf(".")
+			case char >= '1' && char <= '8':
+				// Rank numbers - Cyan
+				fmt.Printf("%s%c%s", Cyan, char, Reset)
+			case char == ' ':
+				fmt.Printf(" ")
+			default:
+				fmt.Printf("%c", char)
+			}
+		}
+		fmt.Println()
+	}
+}
+
+// ColorForTurn returns colored turn indicator
+func ColorForTurn(turn string) string {
+	if turn == "w" {
+		return Blue + "White" + Reset
+	}
+	return Red + "Black" + Reset
+}