Feature/505 ipfs upload service

[delightonyedikachipixel]

Closes #505

Summary
This PR implements the frontend ipfsService to handle uploading media files directly to decentralized storage using the Pinata API.

Changes Proposed

• Created frontend/services/ipfsService.ts.
• Implemented uploadFileToIPFS using the pinFileToIPFS Pinata endpoint.
• Added FormData construction with pinataMetadata for easier file identification in the Pinata dashboard and enforced CIDv1 via pinataOptions.
• Handled loading and error states gracefully, ensuring missing environment variables or rejected requests return a safe, actionable error object rather than crashing the application.

Acceptance Criteria Checklist

• Media files upload successfully to IPFS.
• A valid CID (IpfsHash) is extracted and returned.
• Integration matches the TypeScript architecture constraints.
• Loading and error states are handled gracefully.

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