fmt: apply rustfmt across the P2 arc

CI's rustfmt check flagged the multi-line sqlx::query() calls I
introduced in P2 (loop_id_for_run, zeroclaw_gateway_url, etc.).
No behavior change — pure formatting.

crates/cm-api/src/routes/research.rs

@@ -883,10 +883,7 @@ async fn decide_publish(
     if approval.status != "pending" {
         return Err(ApiError::Conflict);
     }
-    let notes_ref = notes
-        .as_deref()
-        .map(str::trim)
-        .filter(|s| !s.is_empty());
+    let notes_ref = notes.as_deref().map(str::trim).filter(|s| !s.is_empty());
     let landed = cm_db::repo::research_publish_approvals::decide(
         &state.pool,
         id,
@@ -992,12 +989,21 @@ pub async fn get_artifact(
     let safe_title: String = topic
         .title
         .chars()
-        .map(|c| if c.is_ascii_alphanumeric() || c == '-' || c == '_' { c } else { '-' })
+        .map(|c| {
+            if c.is_ascii_alphanumeric() || c == '-' || c == '_' {
+                c
+            } else {
+                '-'
+            }
+        })
         .collect();
     let filename = format!("{}-v{}.md", safe_title.trim_matches('-'), outcome.version);
     Ok((
         [
-            (header::CONTENT_TYPE, "text/markdown; charset=utf-8".to_string()),
+            (
+                header::CONTENT_TYPE,
+                "text/markdown; charset=utf-8".to_string(),
+            ),
             (
                 header::CONTENT_DISPOSITION,
                 format!("attachment; filename=\"{filename}\""),