feat(sync): Phase 1 MVP - single relay proactive sync

- Add src/sync/ module with SyncManager
- Add NGIT_SYNC_RELAY_URL config option
- Subscribe to kind 30617 on configured relay
- Validate synced events through Nip34WritePolicy
- Integration test with two TestRelay instances

1 files changed, 2 insertions, 0 deletions

diff --git a/src/http/nip11.rs b/src/http/nip11.rs
index 1723601..e9e1c25 100644
--- a/src/http/nip11.rs
+++ b/src/http/nip11.rs
@@ -105,6 +105,7 @@ mod tests {
             metrics_enabled: true,
             metrics_connection_per_ip_abuse_threshold: 10,
             metrics_top_n_repos: 10,
+            sync_relay_url: None,
         };
 
         let doc = RelayInformationDocument::from_config(&config);
@@ -139,6 +140,7 @@ mod tests {
             metrics_enabled: true,
             metrics_connection_per_ip_abuse_threshold: 10,
             metrics_top_n_repos: 10,
+            sync_relay_url: None,
         };
 
         let doc = RelayInformationDocument::from_config(&config);