refactor: remove git attribute from Person and StudentShort classes and simplify contact information handling

lab2/main.rb

@@ -42,7 +42,7 @@ def test_parsing
   student = Student.from_string(student_string)
   puts "Parsed Student: #{student.to_s}"
 
-  short_string = 'Иванов И.И., Git: https://github.com/ivanov, Contact: Phone: +79876543210'
+  short_string = 'Иванов И.И., Contact: Phone: +79876543210'
   student_short = StudentShort.from_string('4', short_string)
   puts "Parsed StudentShort: #{student_short.to_s}"
 end

lab2/person.rb

@@ -1,7 +1,7 @@
 class Person
   attr_reader :id, :git, :phone, :telegram, :email
 
-  def initialize(id:, git:, phone: nil, telegram: nil, email: nil)
+  def initialize(id:, git: nil, phone: nil, telegram: nil, email: nil)
     self.class.validate_id(id)
     self.phone = phone
     self.telegram = telegram
@@ -21,11 +21,7 @@ class Person
   end
 
   def contact_info
-    return "Phone: #{@phone}" if @phone
-    return "Telegram: #{@telegram}" if @telegram
-    return "Email: #{@email}" if @email
-
-    'No contact available'
+    [@phone, @telegram, @email].compact.join(', ')
   end
 
   def self.valid_phone_number?(phone)

lab2/student_short.rb

@@ -3,15 +3,14 @@ require_relative 'person'
 class StudentShort < Person
   attr_reader :surname_initials
 
-  def initialize(id:, git:, surname_initials:, phone: nil, telegram: nil, email: nil)
-    super(id: id, git: git, phone: phone, telegram: telegram, email: email)
+  def initialize(id:, surname_initials:, phone: nil, telegram: nil, email: nil)
+    super(id: id, phone: phone, telegram: telegram, email: email)
     @surname_initials = surname_initials
   end
 
   def self.from_student(student)
     new(
       id: student.id,
-      git: student.git,
       surname_initials: student.surname_and_initials,
       phone: student.phone,
       telegram: student.telegram,
@@ -21,17 +20,15 @@ class StudentShort < Person
 
   def self.from_string(id, info_string)
     parts = info_string.split(',').map(&:strip)
-    raise ArgumentError, 'Invalid info string format' if parts.size < 3
+    raise ArgumentError, 'Invalid info string format' if parts.size < 2
 
     surname_initials = parts[0]
-    git = parts[1].split(': ').last.strip
-    contact_string = parts[2].split(': ', 2).last.strip
+    contact_string = parts[1].split(': ', 2).last.strip
 
     phone, telegram, email = parse_contact_string(contact_string)
 
     new(
       id: id,
-      git: git,
       surname_initials: surname_initials,
       phone: phone,
       telegram: telegram,
@@ -41,7 +38,7 @@ class StudentShort < Person
 
   def to_s
     contact_info = contact_info()
-    "#{@surname_initials}, Git: #{@git}, Contact: #{contact_info}"
+    "#{@surname_initials}, Contact: #{contact_info}"
   end
 
   private