fix: add --all to cargo fmt in script/test and autoformat codebase

cargo fmt without --all fails with "Failed to find targets" in
workspace repos. This was blocking every story's gates. Also ran
cargo fmt --all to fix all existing formatting issues.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

server/src/chat/transport/matrix/start.rs

@@ -84,9 +84,7 @@ pub async fn handle_start(
         match crate::chat::lookup::find_story_by_number(project_root, story_number) {
             Some(found) => found,
             None => {
-                return format!(
-                    "No story, bug, or spike with number **{story_number}** found."
-                );
+                return format!("No story, bug, or spike with number **{story_number}** found.");
             }
         };
 
@@ -115,7 +113,13 @@ pub async fn handle_start(
     );
 
     match agents
-        .start_agent(project_root, &story_id, resolved_agent.as_deref(), None, None)
+        .start_agent(
+            project_root,
+            &story_id,
+            resolved_agent.as_deref(),
+            None,
+            None,
+        )
         .await
     {
         Ok(info) => {
@@ -231,7 +235,14 @@ mod tests {
     async fn handle_start_returns_not_found_for_unknown_number() {
         let tmp = tempfile::tempdir().unwrap();
         let project_root = tmp.path();
-        for stage in &["1_backlog", "2_current", "3_qa", "4_merge", "5_done", "6_archived"] {
+        for stage in &[
+            "1_backlog",
+            "2_current",
+            "3_qa",
+            "4_merge",
+            "5_done",
+            "6_archived",
+        ] {
             std::fs::create_dir_all(project_root.join(".huskies").join("work").join(stage))
                 .unwrap();
         }
@@ -276,7 +287,8 @@ mod tests {
             "response must not say 'Failed' when coders are busy: {response}"
         );
         assert!(
-            response.to_lowercase().contains("queue") || response.to_lowercase().contains("available"),
+            response.to_lowercase().contains("queue")
+                || response.to_lowercase().contains("available"),
             "response must mention queued/available state: {response}"
         );
     }