Add daemon-owned Iroh endpoint

crates/geth-store/src/lib.rs

@@ -47,6 +47,13 @@ impl Store {
                 agent_id TEXT,
                 created_at_ms INTEGER NOT NULL
             );
+            CREATE TABLE IF NOT EXISTS node_endpoints (
+                endpoint_id TEXT PRIMARY KEY,
+                node_id TEXT NOT NULL,
+                agent_id TEXT NOT NULL,
+                transport TEXT NOT NULL,
+                created_at_ms INTEGER NOT NULL
+            );
             CREATE TABLE IF NOT EXISTS resources (
                 resource_id TEXT PRIMARY KEY,
                 kind TEXT NOT NULL,
@@ -168,6 +175,20 @@ impl Store {
         Ok(())
     }
 
+    pub fn upsert_node_endpoint(
+        &self,
+        endpoint_id: &str,
+        node_id: &str,
+        agent_id: &str,
+        transport: &str,
+    ) -> Result<(), StoreError> {
+        self.conn.execute(
+            "INSERT OR IGNORE INTO node_endpoints(endpoint_id, node_id, agent_id, transport, created_at_ms) VALUES (?1, ?2, ?3, ?4, ?5)",
+            params![endpoint_id, node_id, agent_id, transport, now_ms()],
+        )?;
+        Ok(())
+    }
+
     pub fn list_resources(&self) -> Result<Vec<StoredResource>, StoreError> {
         let mut stmt = self.conn.prepare(
             "SELECT resource_id, kind, name, status FROM resources ORDER BY kind, name, resource_id",