fix(repository): add missing name column in find_network query

The sed replacement during the network name feature didn't update
find_network's SELECT, causing a ColumnNotFound panic on host creation.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

src/server/repository/networks.rs

@@ -23,7 +23,7 @@ pub async fn list_networks(pool: &AnyPool) -> Result<Vec<Network>, DbError> {
 pub async fn find_network(pool: &AnyPool, id: i64) -> Result<Option<Network>, DbError> {
     // `fetch_optional` returns `Ok(None)` when no row matches — unlike
     // `fetch_one`, which returns an error when nothing is found.
-    let row = sqlx::query("SELECT id, cidr FROM networks WHERE id = $1")
+    let row = sqlx::query("SELECT id, name, cidr FROM networks WHERE id = $1")
         .bind(id) // `$1` is replaced with the value of `id` at runtime
         .fetch_optional(pool)
         .await?;