feat: read file and add to prompt

reader/file.go

@@ -0,0 +1,24 @@
+package reader
+
+import (
+	"bufio"
+	"os"
+)
+
+func FileToPrompt(cmd *string, filePath string) error {
+	f, err := os.Open(filePath)
+	if err != nil {
+		return err
+	}
+	defer f.Close()
+	reader := bufio.NewReader(f)
+	*cmd = *cmd + "\nFile path: " + filePath + "\n"
+	for {
+		line, err := reader.ReadString('\n')
+		if err != nil {
+			break
+		}
+		*cmd = *cmd + "\n" + line
+	}
+	return nil
+}