style: cargo fmt on today's new code (883/884/886/opus-pin)

The mergemaster gates run rustfmt and rejected 864's merge because
several files I added/touched in master today had not been fmt'd.
Six files affected, mostly trivial line-wrapping nits. Fixes the
formatting gate for the next 864 merge attempt.

server/src/http/mcp/mod.rs

@@ -61,11 +61,7 @@ pub async fn mcp_get_handler() -> Response {
 /// `POST /mcp` — JSON-RPC 2.0 entry point for `initialize`, `tools/list`,
 /// `tools/call`, and `notifications/*`.
 #[handler]
-pub async fn mcp_post_handler(
-    req: &Request,
-    body: Body,
-    ctx: Data<&Arc<AppContext>>,
-) -> Response {
+pub async fn mcp_post_handler(req: &Request, body: Body, ctx: Data<&Arc<AppContext>>) -> Response {
     let content_type = req.header("content-type").unwrap_or("");
     if !content_type.is_empty() && !content_type.contains("application/json") {
         return json_response(JsonRpcResponse::error(

server/src/http/mcp/shell_tools/script.rs

@@ -366,12 +366,8 @@ async fn run_script_tool(
 
     // When verbose, fall back to the legacy truncated output so callers
     // who actually want raw text still get a bounded payload.
-    let mut payload = build_diagnostic_response(
-        result.status.success(),
-        exit_code,
-        &combined,
-        verbose,
-    );
+    let mut payload =
+        build_diagnostic_response(result.status.success(), exit_code, &combined, verbose);
     if verbose {
         payload["output"] = serde_json::json!(truncate_output(&combined, MAX_OUTPUT_LINES));
     }
@@ -715,7 +711,10 @@ mod tests {
             "last error code should be parsed"
         );
         let summary = parsed["summary"].as_str().expect("summary string");
-        assert!(summary.contains("150 error"), "summary mentions error count: {summary}");
+        assert!(
+            summary.contains("150 error"),
+            "summary mentions error count: {summary}"
+        );
         // Default response should be small even with 150 errors.
         assert!(
             result.len() < 50_000,
@@ -724,9 +723,13 @@ mod tests {
         );
 
         // Verbose mode: raw output is included.
-        let result_v = tool_run_check(&json!({"verbose": true}), &ctx).await.unwrap();
+        let result_v = tool_run_check(&json!({"verbose": true}), &ctx)
+            .await
+            .unwrap();
         let parsed_v: serde_json::Value = serde_json::from_str(&result_v).unwrap();
-        let output = parsed_v["output"].as_str().expect("verbose includes output");
+        let output = parsed_v["output"]
+            .as_str()
+            .expect("verbose includes output");
         assert!(output.contains("error[E1]"), "verbose contains first line");
         assert!(output.contains("error[E150]"), "verbose contains last line");
     }