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/agents/pool/pipeline/completion.rs

@@ -1,11 +1,13 @@
 //! Agent completion handling — processes exit results and triggers pipeline advancement.
-use crate::slog;
 use crate::io::watcher::WatcherEvent;
+use crate::slog;
 use std::collections::HashMap;
 use std::sync::{Arc, Mutex};
 use tokio::sync::broadcast;
 
-use super::super::super::{AgentEvent, AgentStatus, CompletionReport, PipelineStage, pipeline_stage};
+use super::super::super::{
+    AgentEvent, AgentStatus, CompletionReport, PipelineStage, pipeline_stage,
+};
 use super::super::{AgentPool, StoryAgent, composite_key};
 use super::advance::spawn_pipeline_advance;
 
@@ -207,7 +209,10 @@ pub(in crate::agents::pool) async fn run_server_owned_completion(
     // hold the build lock while gates try to run.
     if let Some(wt_path) = worktree_path.as_ref()
         && let Ok(output) = std::process::Command::new("pgrep")
-            .args(["-f", &format!("--manifest-path {}/Cargo.toml", wt_path.display())])
+            .args([
+                "-f",
+                &format!("--manifest-path {}/Cargo.toml", wt_path.display()),
+            ])
             .output()
     {
         let pids = String::from_utf8_lossy(&output.stdout);
@@ -216,7 +221,9 @@ pub(in crate::agents::pool) async fn run_server_owned_completion(
                 crate::slog!(
                     "[agents] Killing stale cargo process (pid {pid}) for '{story_id}' before running gates"
                 );
-                unsafe { libc::kill(pid, libc::SIGKILL); }
+                unsafe {
+                    libc::kill(pid, libc::SIGKILL);
+                }
             }
         }
     }
@@ -311,8 +318,8 @@ pub(in crate::agents::pool) async fn run_server_owned_completion(
 
 #[cfg(test)]
 mod tests {
-    use super::*;
     use super::super::super::AgentPool;
+    use super::*;
     use crate::agents::{AgentEvent, AgentStatus, CompletionReport};
     use std::path::PathBuf;
     use std::process::Command;