feat: integrate nostrdb relay indexing

- Upgrade `nostrdb` to v0.6.1 with relay metadata support
- Switch to `nostr::RelayUrl` for typed relay URLs
- Use `process_event_with()` to pass relay info during ingestion
- Update `Relay`, `RelayPool`, and unknown ID logic accordingly

This enables richer indexing with relay provenance in events.

Signed-off-by: William Casarin <jb55@jb55.com>

crates/enostr/src/error.rs

@@ -25,6 +25,9 @@ pub enum Error {
     #[error("invalid public key")]
     InvalidPublicKey,
 
+    #[error("invalid relay url")]
+    InvalidRelayUrl,
+
     // Secp(secp256k1::Error),
     #[error("json error: {0}")]
     Json(#[from] serde_json::Error),

crates/enostr/src/relay/mod.rs

@@ -149,7 +149,7 @@ pub fn setup_multicast_relay(
 }
 
 pub struct Relay {
-    pub url: String,
+    pub url: nostr::RelayUrl,
     pub status: RelayStatus,
     pub sender: WsSender,
     pub receiver: WsReceiver,
@@ -180,9 +180,10 @@ impl PartialEq for Relay {
 impl Eq for Relay {}
 
 impl Relay {
-    pub fn new(url: String, wakeup: impl Fn() + Send + Sync + 'static) -> Result<Self> {
+    pub fn new(url: nostr::RelayUrl, wakeup: impl Fn() + Send + Sync + 'static) -> Result<Self> {
         let status = RelayStatus::Connecting;
-        let (sender, receiver) = ewebsock::connect_with_wakeup(&url, Options::default(), wakeup)?;
+        let (sender, receiver) =
+            ewebsock::connect_with_wakeup(url.as_str(), Options::default(), wakeup)?;
 
         Ok(Self {
             url,
@@ -210,7 +211,7 @@ impl Relay {
 
     pub fn connect(&mut self, wakeup: impl Fn() + Send + Sync + 'static) -> Result<()> {
         let (sender, receiver) =
-            ewebsock::connect_with_wakeup(&self.url, Options::default(), wakeup)?;
+            ewebsock::connect_with_wakeup(self.url.as_str(), Options::default(), wakeup)?;
         self.status = RelayStatus::Connecting;
         self.sender = sender;
         self.receiver = receiver;

crates/enostr/src/relay/pool.rs

@@ -1,5 +1,5 @@
 use crate::relay::{setup_multicast_relay, MulticastRelay, Relay, RelayStatus};
-use crate::{ClientMessage, Result};
+use crate::{ClientMessage, Error, Result};
 use nostrdb::Filter;
 
 use std::collections::BTreeSet;
@@ -50,7 +50,7 @@ pub struct WebsocketRelay {
 impl PoolRelay {
     pub fn url(&self) -> &str {
         match self {
-            Self::Websocket(wsr) => &wsr.relay.url,
+            Self::Websocket(wsr) => wsr.relay.url.as_str(),
             Self::Multicast(_wsr) => "multicast",
         }
     }
@@ -315,7 +315,10 @@ impl RelayPool {
         if self.has(&url) {
             return Ok(());
         }
-        let relay = Relay::new(url, wakeup)?;
+        let relay = Relay::new(
+            nostr::RelayUrl::parse(url).map_err(|_| Error::InvalidRelayUrl)?,
+            wakeup,
+        )?;
         let pool_relay = PoolRelay::websocket(relay);
 
         self.relays.push(pool_relay);

crates/enostr/src/relay/subs_debug.rs

@@ -229,6 +229,7 @@ fn calculate_error_size(error: &Error) -> usize {
         | Error::InvalidBech32
         | Error::InvalidByteSize
         | Error::InvalidSignature
+        | Error::InvalidRelayUrl
         | Error::Io(_)
         | Error::InvalidPublicKey => mem::size_of_val(error), // No heap usage