Apply PTAC naming simplification and preserve CodPTACParityRunner exception

[Copilot]

This PR aligns PTAC-related naming with the requested cleanup: typo fix to PatternHandler, removal of CodPTAC from PTAC class names, and simplification of optimizer class names in cod.ptac.opt by removing Lazy, Optional, and Pass. Per follow-up clarification, CodPTACParityRunner is explicitly preserved with its CodPTAC prefix.

• Interpreter handler rename

  • PattrrnHandler → PatternHandler
  • Updated all dependent references (InterpreterVisitor, LoopOptimizationHandler, nested types/usages).

• PTAC core naming cleanup

  • Removed CodPTAC prefix from PTAC classes (except the runner exception), including enums/interfaces/value types and orchestration classes.
  • Updated corresponding file names and all imports/usages.

• cod.ptac.opt class simplification

  • CodPTACOptimizationPass → Optimization
  • CodPTACConstantFoldingPass → ConstantFolding
  • CodPTACLazyRangePropagationPass → RangePropagation
  • CodPTACOptionalPatternLoweringPass → PatternLowering
  • CodPTACDeadTempEliminationPass → DeadTempElimination
  • CodPTACPatternFusionPass → PatternFusion

• Runner exception handling

  • Restored and kept CodPTACParityRunner class/file name as requested.

// before
public final class CodPTACLazyRangePropagationPass implements CodPTACOptimizationPass { ... }

// after
public final class RangePropagation implements Optimization { ... }