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feat(chain): remove channels, add social feed (Phase A of v2.0.0)

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Replaces the channel/membership model with a VK/Twitter-style feed:
public posts, follow graph, likes. Views are deliberately off-chain
(counted by the hosting relay, Phase B).

Removed
  - EventCreateChannel, EventAddMember
  - CreateChannelPayload, AddMemberPayload, ChannelMember
  - prefixChannel, prefixChanMember
  - chain.Channel(), chain.ChannelMembers()
  - node/api_channels.go
  - GetChannel, GetChannelMembers on ExplorerQuery

Added
  - Events: CREATE_POST, DELETE_POST, FOLLOW, UNFOLLOW, LIKE_POST, UNLIKE_POST
  - Payloads: CreatePostPayload, DeletePostPayload, FollowPayload,
    UnfollowPayload, LikePostPayload, UnlikePostPayload
  - Stored shape: PostRecord (author, size, hash, hosting relay, timestamp,
    reply/quote refs, soft-delete flag, fee paid)
  - State prefixes: post:, postbyauthor:, follow:, followin:, like:, likecount:
  - Queries: Post(), PostsByAuthor(), Following(), Followers(),
    LikeCount(), HasLiked()
  - Cached like counter via bumpLikeCount helper

Pricing
  - BasePostFee = 1000 µT (aligned with MinFee block-validation floor)
  - PostByteFee = 1 µT/byte of compressed content
  - Total fee credited in full to HostingRelay pub (storage compensation)
  - MaxPostSize = 256 KiB

Integrity
  - CREATE_POST validates content_hash length (32 B) and size range
  - DELETE_POST restricted to post.Author
  - Duplicate FOLLOW / LIKE rejected
  - reply_to and quote_of mutually exclusive

Tests
  - TestFeedCreatePost: post stored, indexed, host credited
  - TestFeedInsufficientFee: underpaid post is skipped
  - TestFeedFollowUnfollow: follow graph round-trips via forward + inbound indices
  - TestFeedLikeUnlike: like toggles with dedup, counter stays accurate
  - TestFeedDeletePostByOther: non-author deletion rejected

This is Phase A (chain-layer). Phase B adds the relay feed-mailbox
(post bodies + gossipsub) and HTTP endpoints. Phase C adds the client
Feed tab.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
This commit is contained in:
vsecoder
2026-04-18 18:36:00 +03:00
parent f2cb5586ca
commit 88848efa63
6 changed files with 695 additions and 168 deletions
Download Patch File Download Diff File Expand all files Collapse all files

7
node/api_routes.go
View File

@@ -79,12 +79,6 @@ type ExplorerQuery struct {
GetNFTs func() ([]blockchain.NFTRecord, error)
NFTsByOwner func(ownerPub string) ([]blockchain.NFTRecord, error)
// Channel group-messaging lookups (R1). GetChannel returns metadata;
// GetChannelMembers returns the Ed25519 pubkey of every current member.
// Both may be nil on nodes that don't expose channel state (tests).
GetChannel func(channelID string) (*blockchain.CreateChannelPayload, error)
GetChannelMembers func(channelID string) ([]string, error)
// Events is the SSE hub for the live event stream. Optional — if nil the
// /api/events endpoint returns 501 Not Implemented.
Events *SSEHub
@@ -127,7 +121,6 @@ func RegisterExplorerRoutes(mux *http.ServeMux, q ExplorerQuery, flags ...Explor
registerUpdateCheckAPI(mux, q)
registerOnboardingAPI(mux, q)
registerTokenAPI(mux, q)
registerChannelAPI(mux, q)
if !f.DisableSwagger {
registerSwaggerRoutes(mux)
}