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feat(fof-layer4): supersedes_post_id field on Post

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Adds an optional supersedes_post_id pointer to Post for the
"re-issue with narrower access" path. Author publishes a new post
that references an earlier one; receivers can render "this is a
re-issued version of an earlier post" + offer to view the original.

Covered by PostId = BLAKE3(Post) — receivers can verify it wasn't
forged by anyone but the author.

#[serde(default)] for back-compat; existing posts deserialize with
None. All existing Post construction sites bulk-updated to set the
field to None.

Storage::get_post returns None for the field today; a follow-up can
add a dedicated column if/when receivers need to render the
pointer. The author-side re-issue helper that creates posts with
this field set comes in the Tauri/UI slice — the wire shape is in
place now.

148 tests pass (no regressions).

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
This commit is contained in:
Scott Reimers 2026-05-14 16:29:55 -06:00
parent c2f2203331
commit fdbf97f2d7
11 changed files with 50 additions and 0 deletions
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5
crates/core/src/fof.rs
View file

@ -914,6 +914,7 @@ mod tests {
attachments: vec![],
timestamp_ms: 3000,
fof_gating: Some(built.gating.clone()),
supersedes_post_id: None,
};
// Bob's device unlocks the post via his V_me (= v_x_bob).
@ -995,6 +996,7 @@ mod tests {
let post = crate::types::Post {
author: alice_id, content: "alice".into(), attachments: vec![],
timestamp_ms: 3000, fof_gating: Some(built.gating.clone()),
supersedes_post_id: None,
};
s.store_post_with_intent(
&post_id, &post,
@ -1085,6 +1087,7 @@ mod tests {
let post = crate::types::Post {
author: alice_id, content: "alice".into(), attachments: vec![],
timestamp_ms: 3000, fof_gating: Some(built.gating.clone()),
supersedes_post_id: None,
};
s.store_post_with_intent(
&post_id, &post,
@ -1186,6 +1189,7 @@ mod tests {
let post = crate::types::Post {
author: alice_id, content: "x".into(), attachments: vec![],
timestamp_ms: 3000, fof_gating: Some(built.gating.clone()),
supersedes_post_id: None,
};
s.store_post_with_intent(
&post_id, &post,
@ -1334,6 +1338,7 @@ mod tests {
let alice_post = crate::types::Post {
author: alice_id, content: String::new(), attachments: vec![],
timestamp_ms: 3000, fof_gating: Some(built.gating.clone()),
supersedes_post_id: None,
};
let bob_unlock = find_unlock_for_post(&bob_storage, &alice_post).unwrap()
.expect("Bob can unlock");