hive-c0re: finish chrono-clock migration

hive-c0re/src/stores/operator_questions.rs

@@ -15,7 +15,6 @@ use std::sync::Mutex;
 use anyhow::{Context, Result, bail};
 
 use chrono::{DateTime, Utc};
-use hive_sh4re::wire_time::now_unix;
 use rusqlite::{Connection, OptionalExtension, params};
 use serde::Serialize;
 
@@ -119,7 +118,7 @@ impl OperatorQuestions {
                 i64::from(multi),
                 deadline_at,
                 target,
-                now_unix(),
+                Utc::now().timestamp(),
             ],
         )?;
         Ok(conn.last_insert_rowid())
@@ -177,7 +176,7 @@ impl OperatorQuestions {
         }
         conn.execute(
             "UPDATE operator_questions SET answer = ?1, answered_at = ?2 WHERE id = ?3",
-            params![answer, now_unix(), id],
+            params![answer, Utc::now().timestamp(), id],
         )?;
         Ok((question, asker, target))
     }
@@ -225,7 +224,7 @@ impl OperatorQuestions {
         let sentinel = format!("[cancelled by {canceller}]");
         conn.execute(
             "UPDATE operator_questions SET answer = ?1, answered_at = ?2 WHERE id = ?3",
-            params![sentinel, now_unix(), id],
+            params![sentinel, Utc::now().timestamp(), id],
         )?;
         Ok((question, asker, target))
     }