P3: party totals by what moved the money, once (defects 14, 11, 24)

Each party's part of an entry is signed as its own account would show it,
with a direction and its cash and in-kind amounts; a reversal is its
original negated. Totals on a cash or all basis: for a member, all equals
the members' equity statement and cash the K-1's cash. Money is cash,
cards and the financing accounts, and a liability credit never pays its
own creditor (creditor_of), so accruals and declared distributions count
once. tin_last4 from the TIN or W-9 facts.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01T3gXMVt7XJPi6ens1or9Dj

crates/ledger-gui/src/pages/journal.rs

@@ -483,6 +483,21 @@ pub fn describe(b: &Books, line: &JournalLine) -> Option<Event> {
             };
             ev(icon::USER_GEAR, text, pid.map(Route::Party))
         }
+        "party.creditor_set" => {
+            let pid = p.get("id").and_then(|v| v.as_u64());
+            let name = party_name(b, pid);
+            let account = p
+                .get("account_id")
+                .and_then(|v| v.as_u64())
+                .map(|a| b.account_name(a))
+                .unwrap_or_else(|| "an account".to_string());
+            let text = if p.get("on").and_then(|v| v.as_bool()).unwrap_or(true) {
+                format!("{name} is now owed on {account}")
+            } else {
+                format!("{name} is no longer owed on {account}")
+            };
+            ev(icon::USER_GEAR, text, pid.map(Route::Party))
+        }
         "party.w9_set" => {
             let pid = p.get("id").and_then(|v| v.as_u64());
             let name = party_name(b, pid);