Feature/ruby support update

[NoorFatima-code]

Ruby Support — Major Update
What it was before
Originally, the applyRubyDialect() function was very basic. It only handled:

puts and print (Ruby's print commands)
if / elsif / else / unless / while / until
def (function definitions) — but only with simple names
end (closing a block)
nil (Ruby's "empty value")

Everything else in Ruby — method names with ?/!, different loop styles, classes, error handling — wasn't supported at all. Because of this, more than 12 out of the Ruby test files were crashing.
What's been added now

Method names containing ? or !
Ruby commonly uses names like prime?, zero?, save!. These used to crash the transpiler. Now they're safely renamed (e.g. prime? → prime_q) so the system can understand them. Care was also taken so normal text (like "Hello, World!") doesn't get mistakenly treated as a method name.
Ruby's different loop styles
5.times do |i|
(1..100).each do |n|
array.each do |x|
array.each_with_index do |x, i|
a.upto(b) do
a.downto(b) do
loop do (infinite loop)
Any generic something do |x| ... end pattern

All of these now convert correctly.
3. case/when/else (Ruby's switch statement)
Previously not supported at all. Now it correctly converts into an if-else chain.
4. Classes
class Animal, class Dog < Animal (inheritance) — now convert into the correct format.
5. attr_reader / attr_accessor / attr_writer
For now, these are commented out (proper support planned for the future).
6. @variable (instance variables)
Previously not supported. Now converts into the correct format.
7. raise (throwing errors)
Previously not supported at all. Now converts into the correct syntax.
8. begin / rescue / end (error handling)
Our system doesn't support try/catch yet. So this is now safely skipped — the normal code still runs, only the error-handling part is skipped (turned into a comment), so it doesn't crash.
9. ClassName.new(...)
Previously not supported. Now converts into the correct constructor-call format.
10. File.exist?
Turned out the system uses a different actual name for this, so it's now matched correctly.
11. Modifier if/unless
One-line conditions like break unless swapped now convert correctly too.
12. .length / .size
Previously this sometimes incorrectly matched the whole line. Now it only matches the correct part.