feat(nip13): Support PoW

Signed-off-by: Awiteb <a@4rs.nl>

src/cli/mod.rs

@@ -59,6 +59,9 @@ pub struct CliOptions {
     /// Where your relays list. And repository relays if not included in naddr
     #[arg(short, long, required = true)]
     pub relays:     Vec<RelayUrl>,
+    /// Proof of Work difficulty when creatring events
+    #[arg(long, default_value_t = 0)]
+    pub pow:        u8,
 }
 
 #[derive(Parser, Debug)]

src/cli/repo/announce.rs

@@ -91,6 +91,7 @@ impl CommandRunner for AnnounceArgs {
             maintainers,
             self.labels.into_iter().map(utils::str_trim).collect(),
         )?
+        .pow(options.pow)
         .build(user_pubk);
         let nevent = Nip19Event::new(event.id.expect("There is an id"))
             .relays(write_relays.iter().take(3).cloned())