Add ERC: Buyer-Seller Negotiable Pricing

[admi-n]

This proposal introduces a new smart contract mechanism that allows buyers and sellers to freely negotiate and determine transaction prices on the Ethereum network. A new trading mode is added, where goods can be negotiated rather than only priced. This mechanism allows the seller to set an initial price, and the buyer can propose a new price through negotiation with the seller. Ultimately, both parties can reach an agreement and complete the transaction.

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[eip-review-bot]

File ERCS/erc-7764.md

Requires 1 more reviewers from @axic, @g11tech, @samwilsn, @xinbenlv

[github-actions[bot]]

The commit 85fec6c5390855de0cda4ff6d823b31eb82ed960 (as a parent of 8befb311cf53ecb31ecc634686d8ce3369b2d2ac) contains errors. Please inspect the Run Summary for details.

[github-actions[bot]]

There has been no activity on this issue for six months. It will be closed in 7 days if there is no new activity. If you would like to move this PR forward, please respond to any outstanding feedback or add a comment indicating that you have addressed all required feedback and are ready for a review.

[github-actions[bot]]

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