add nip60 crate

crates/nip60/Cargo.toml

@@ -0,0 +1,14 @@
+[package]
+name = "nip60"
+version.workspace = true
+edition.workspace = true
+publish.workspace = true
+
+[dependencies]
+gpui.workspace = true
+nostr.workspace = true
+nostr-sdk.workspace = true
+
+cdk.workspace = true
+cdk-redb.workspace = true
+cdk-nostr.workspace = true

crates/nip60/src/lib.rs

@@ -0,0 +1,49 @@
+#![cfg(not(target_arch = "wasm32"))]
+
+use gpui::App;
+use nostr::prelude::*;
+
+/// Initialize the wallet registry.
+pub fn init(_cx: &mut App) {}
+
+/// Compile-only phase 0 spike: proves the `nostr::nips::nip60` types, kinds,
+/// and the cdk crates resolve against the workspace's git nostr. Replaced by
+/// the real implementation.
+#[allow(dead_code)]
+fn spike() {
+    let _kinds = (
+        Kind::CashuWallet,
+        Kind::CashuWalletUnspentProof,
+        Kind::CashuWalletSpendingHistory,
+        Kind::CashuWalletQuote,
+    );
+
+    let _history =
+        nostr::nips::nip60::SpendingHistory::new(nostr::nips::nip60::TransactionDirection::In, 1);
+    let _builder = cdk::wallet::WalletBuilder::new();
+    let _store: Option<cdk_redb::WalletRedbDatabase> = None;
+    let _inbox: Option<cdk_nostr::inbox::NostrInbox> = None;
+
+    if let Ok(mint) = nostr::types::Url::parse("https://mint.example.com") {
+        let proof = nostr::nips::nip60::CashuProof {
+            id: String::new(),
+            amount: 1,
+            secret: String::new(),
+            c: String::new(),
+        };
+        let _wallet_event = nostr::nips::nip60::WalletEvent::new("privkey", vec![mint.clone()]);
+        let _token_event =
+            nostr::nips::nip60::TokenEvent::new(mint, vec![proof]).destroyed("id".to_string());
+    }
+}
+
+/// Only compiles when `nostr` and `cdk_nostr` resolve to the same crate.
+#[allow(dead_code)]
+fn spike_unified(key: nostr::key::SecretKey) -> cdk_nostr::nostr::key::SecretKey {
+    key
+}
+
+#[allow(dead_code)]
+fn spike_sdk_unified(client: nostr_sdk::client::Client) -> cdk_nostr::nostr_sdk::client::Client {
+    client
+}