Fix typos in circuit writer

[viktorking7]

Description

• Summary: Corrects a spelling typo in comments for clarity and consistency. No functional changes.
• Files:
  • src/circuit_writer/ir.rs
  • src/circuit_writer/writer.rs
• Change: Replace “cotainer” with “container” in inline comments.
• Impact: Documentation-only; zero risk, no behavior or tests affected.