MIP-0005: Merge Requests for Cross-Project Contribution Proposals

[christopherwxyz]

This discussion is for review and feedback on MIP-0005: Merge Requests for Cross-Project Contribution Proposals.

Full text: mips/MIP-0005-merge-requests.md
PR: #17
Original discussion: https://github.com/officialunofficial/makechain/discussions/391

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Summary

MIP-0005 adds a protocol-level merge request primitive for cross-project contribution proposals:

• MERGE_REQUEST_ADD (type 84) and MERGE_REQUEST_REMOVE (type 85) as a new 2P set family
• Permissionless proposals from fork descendants to upstream projects
• Fork lineage validated via retained 0x1A parent index within MAX_FORK_LINEAGE_DEPTH = 256 hops
• Dual authorization for closure: requester withdrawal or target-project WRITE+ maintainer
• Content-addressed identity: request_id = Message.hash
• State at prefix 0x1B (forward) and 0x1C (reverse by requester)
• ProjectState extended with merge_request_count
• Storage limit: 20 + storage_units × 20 per project
• Activates behind named hardfork MergeRequests (same wire version 5)
• gRPC: GetMergeRequest, ListMergeRequests, ListMergeRequestsByRequester
• REST: /projects/{id}/merge-requests, /accounts/{addr}/merge-requests

Requires: MIP-0003 (address-native identity)

Author: @marthendalnunes

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Please review and share feedback on the proposal.