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/wait.rs

@@ -1,7 +1,7 @@
 //! Agent wait — blocks until an agent reaches a terminal state with optional timeout.
 use super::super::{AgentEvent, AgentInfo, AgentStatus};
-use super::types::{agent_info_from_entry, composite_key};
 use super::AgentPool;
+use super::types::{agent_info_from_entry, composite_key};
 
 use tokio::sync::broadcast;