• Note: Poseidon's transpiler does not compile initializeMint function of poseidon library to rust yet, so this is done manually in lib.rs using InitializeMint attributes in struct.
  I have raised issue to poseidon for this: Issue in Transpilation of Poseidon to Anchor Rust – In initializeMint function Turbin3/poseidon#21
• Addition of the latest Poseidon library code, which includes a payer argument for init and initIfNeeded, ensuring compatibility with multi-signer configurations.
• Followed the original exact program structure from the pda-mint-authority example in Anchor.
• Includes both Anchor and Bankrun tests, providing comprehensive test coverage that was missing in previous PR.
• Required to include "anchor-spl" and anchor-lang = { version = "0.30.1", features = ["init-if-needed"] } dependency using cargo
  and add "anchor-spl/idl-build" to idl-build list

replaced all occurrences of yarn with pnpm to maintain consistency across the project.

executed pnpm fix to ensure code quality.

committed the pnpm-lock.yaml file to the repository.