🔧 Refactor Compiler Initialization with Functional Options

[dsyme]

Overview

This PR refactors the NewCompiler method to use functional options, simplifying compiler initialization and improving flexibility.

Key Changes

• Introduced functional options pattern for compiler configuration
• Added new option methods like WithVerbose, WithEngineOverride, etc.
• Updated tests to use new initialization pattern
• Simplified default compiler creation logic
• Removed redundant NewCompilerWithCustomOutput method
• Maintained backward compatibility with NewCompilerWithVersion

Benefits

• More flexible and readable compiler initialization
• Easier to add new configuration options
• Reduced method complexity
• Better type safety and configuration management

Migration

• Replace NewCompiler(false, "", "version") with NewCompilerWithVersion("version")
• For more complex configurations, use functional options like NewCompiler(WithVerbose(true), WithEngineOverride("claude"))

Testing

• Updated all existing tests to use new initialization pattern
• Verified no breaking changes in compiler behavior

[dsyme]

@copilot fix the go formatting CI failures

[Copilot]

@dsyme I've opened a new pull request, #12335, to work on those changes. Once the pull request is ready, I'll request review from you.