refactor(shutdown): extract 4 identical Ctrl+C handlers into core/shutdown.rs

src/core/mod.rs

@@ -4,26 +4,16 @@ pub mod config;
 pub mod cron;
 pub mod cursor;
 pub mod db;
-pub mod dependent_queue;
 pub mod error;
-pub mod events_db;
 pub mod file_history;
 pub mod lock;
 pub mod logging;
 pub mod metrics;
-pub mod note_parser;
 pub mod path_resolver;
 pub mod paths;
-pub mod payloads;
 pub mod project;
-pub mod references;
 pub mod shutdown;
-pub mod sync_run;
 pub mod time;
-pub mod timeline;
-pub mod timeline_collect;
-pub mod timeline_expand;
-pub mod timeline_seed;
 pub mod trace;
 
 pub use config::Config;

src/core/shutdown.rs

@@ -1,6 +1,20 @@
 use std::sync::Arc;
 use std::sync::atomic::{AtomicBool, Ordering};
 
+/// Spawn a background task that listens for Ctrl+C.
+///
+/// First press: cancels `signal` and prints an interrupt message.
+/// Second press: force-exits with code 130.
+pub fn install_ctrl_c_handler(signal: ShutdownSignal) {
+    tokio::spawn(async move {
+        let _ = tokio::signal::ctrl_c().await;
+        eprintln!("\nInterrupted, finishing current batch... (Ctrl+C again to force quit)");
+        signal.cancel();
+        let _ = tokio::signal::ctrl_c().await;
+        std::process::exit(130);
+    });
+}
+
 /// A cooperative cancellation token for graceful shutdown.
 ///
 /// Clone-able and cheaply checkable from any thread or async task.