hive-agent: finish chrono-clock migration on remaining call sites

hive-agent/src/todos.rs

@@ -32,7 +32,8 @@ use std::path::Path;
 use std::sync::Mutex;
 
 use anyhow::{Context, Result};
-use hive_sh4re::wire_time::now_unix;
+use chrono::{DateTime, Utc};
+use hive_sh4re::wire_time;
 use rusqlite::{Connection, params};
 
 /// SQL bootstrap. `CREATE TABLE IF NOT EXISTS` so first-boot agents and
@@ -66,8 +67,8 @@ const MIGRATIONS: &[&str] = &[
     "ALTER TABLE todos ADD COLUMN acked_at INTEGER",
 ];
 
-/// One dynamic, subsystem-pushed todo. Timestamps are unix seconds; the
-/// consumer derives `age_seconds` from `updated_at`.
+/// One dynamic, subsystem-pushed todo. The consumer derives `age_seconds`
+/// from `updated_at`.
 #[derive(Debug, Clone)]
 pub struct Todo {
     pub id: i64,
@@ -80,7 +81,7 @@ pub struct Todo {
     pub summary: String,
     /// Optional free-text provenance (e.g. the room name / task label).
     pub source: Option<String>,
-    pub updated_at: i64,
+    pub updated_at: DateTime<Utc>,
 }
 
 /// The harness-local todo store. Cheap to share behind an `Arc`; the inner
@@ -144,7 +145,7 @@ impl Todos {
         source: Option<&str>,
     ) -> Result<(i64, bool)> {
         let conn = self.conn.lock().unwrap();
-        let now = now_unix();
+        let now = Utc::now().timestamp();
         let existing: Option<(i64, String, Option<String>)> = if key.is_some() {
             conn.query_row(
                 "SELECT id, summary, source FROM todos \
@@ -239,7 +240,7 @@ impl Todos {
         let conn = self.conn.lock().unwrap();
         let n = conn.execute(
             "UPDATE todos SET acked = 1, acked_at = ?1 WHERE id = ?2 AND acked = 0",
-            params![now_unix(), id],
+            params![Utc::now().timestamp(), id],
         )?;
         Ok(n)
     }
@@ -266,13 +267,14 @@ impl Todos {
         )?;
         let rows = stmt
             .query_map(params![subsystem], |row| {
+                let updated_at_secs: i64 = row.get(5)?;
                 Ok(Todo {
                     id: row.get(0)?,
                     subsystem: row.get(1)?,
                     subsystem_key: row.get(2)?,
                     summary: row.get(3)?,
                     source: row.get(4)?,
-                    updated_at: row.get(5)?,
+                    updated_at: wire_time::from_secs(updated_at_secs),
                 })
             })?
             .collect::<rusqlite::Result<Vec<_>>>()?;
@@ -491,12 +493,12 @@ mod tests {
             let conn = s.conn.lock().unwrap();
             conn.execute(
                 "UPDATE todos SET acked_at = ?1 WHERE id = ?2",
-                params![now_unix() - 1000, old_id],
+                params![Utc::now().timestamp() - 1000, old_id],
             )
             .unwrap();
         }
 
-        let removed = s.reap_acked(now_unix() - 500).unwrap();
+        let removed = s.reap_acked(Utc::now().timestamp() - 500).unwrap();
         assert_eq!(removed, 1, "only the backdated row is past the cutoff");
 
         let conn = Connection::open(dir.path().join("todos.sqlite")).unwrap();