style(sidecar): rustfmt-wrap wide signatures/calls

The release workflow's `cargo fmt --check` gate failed on the Protocol 2.0
additions: upsert_guild/upsert_house signatures and their call sites in
main.rs exceeded rustfmt's default width. Reformatted with `cargo fmt` — no
behavioral change. `cargo fmt --check`, `cargo check`, and `cargo test` all
clean.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

sidecar/src/store.rs

@@ -192,7 +192,13 @@ impl Store {
 
     /// Upserts one guild's latest state, keyed by guild id. Fed from `guild.update`; one row per
     /// guild, always the most recent snapshot. This is the board the website reads on load.
-    pub async fn upsert_guild(&self, id: i64, name: Option<&str>, json: &str, t: i64) -> anyhow::Result<()> {
+    pub async fn upsert_guild(
+        &self,
+        id: i64,
+        name: Option<&str>,
+        json: &str,
+        t: i64,
+    ) -> anyhow::Result<()> {
         sqlx::query(
             "INSERT INTO guilds (id, name, json, updated_t) VALUES (?, ?, ?, ?)
              ON CONFLICT(id) DO UPDATE SET name = excluded.name, json = excluded.json, updated_t = excluded.updated_t",
@@ -250,7 +256,13 @@ impl Store {
     // ---- house registry (Protocol 2.0) ----
 
     /// Upserts one house's latest state, keyed by serial. Fed from `house.update`.
-    pub async fn upsert_house(&self, serial: &str, name: Option<&str>, json: &str, t: i64) -> anyhow::Result<()> {
+    pub async fn upsert_house(
+        &self,
+        serial: &str,
+        name: Option<&str>,
+        json: &str,
+        t: i64,
+    ) -> anyhow::Result<()> {
         sqlx::query(
             "INSERT INTO houses (serial, name, json, updated_t) VALUES (?, ?, ?, ?)
              ON CONFLICT(serial) DO UPDATE SET name = excluded.name, json = excluded.json, updated_t = excluded.updated_t",