feat: add `get_info` method and protected access to key student info

- Added `get_info` method to return a concise summary of the student, including surname with initials, Git link, and primary contact method.
- Implemented individual methods for retrieving surname with initials, Git link, and contact information separately.
- Protected contact fields from direct modification; fields can now only be updated via `set_contacts`.
- Enhanced string parsing with `from_string` constructor to initialize objects directly from formatted strings.
- Updated main file to test new methods and constructor functionality.

lab2/main.rb

@@ -20,6 +20,11 @@ begin
         email: 'no-replay@djft.ru'
     )
 
+    puts student1.get_info
+    puts "Surname and Initials: #{student1.surname_and_initials}"
+    puts "Git Info: #{student1.git_info}"
+    puts "Contact Info: #{student1.contact_info}"
+
     student2 = Student.new(
         surname: 'Норакет',
         name: 'Норакет',

lab2/student.rb

@@ -96,9 +96,28 @@ class Student
       "Email: #{@email || 'N/A'} | Git: #{@git || 'N/A'}"
     end
   
+    def get_info
+      "#{surname_and_initials}, Git: #{git_info}, Contact: #{contact_info}"
+    end
+  
+    def surname_and_initials
+      "#{@surname} #{name[0]}.#{patronymic[0]}."
+    end
+  
+    def git_info
+      @git
+    end
+  
+    def contact_info
+      return "Phone: #{@phone}" if @phone
+      return "Telegram: #{@telegram}" if @telegram
+      return "Email: #{@email}" if @email
+      'No contact available'
+    end
+  
     private
   
     attr_reader :phone, :telegram, :email
-  
     attr_writer :phone, :telegram, :email
   end
+