wire types: use chrono DateTime<Utc> as the timestamp type throughout

hive-c0re/src/operator_questions.rs

@@ -14,7 +14,8 @@ use std::sync::Mutex;
 use std::time::{SystemTime, UNIX_EPOCH};
 
 use anyhow::{Context, Result, bail};
-use hive_sh4re::wire_time::WireTime;
+
+use chrono::{DateTime, Utc};
 use rusqlite::{Connection, OptionalExtension, params};
 use serde::Serialize;
 
@@ -75,12 +76,12 @@ pub struct OpQuestion {
     pub question: String,
     pub options: Vec<String>,
     pub multi: bool,
-    pub asked_at: WireTime,
+    pub asked_at: DateTime<Utc>,
     /// Deadline after which a watchdog auto-resolves the question with
     /// answer `[expired]`. `None` = no expiry. Surfaced on the
     /// dashboard as a remaining-time chip.
-    pub deadline_at: Option<WireTime>,
-    pub answered_at: Option<WireTime>,
+    pub deadline_at: Option<DateTime<Utc>>,
+    pub answered_at: Option<DateTime<Utc>>,
     pub answer: Option<String>,
     /// Recipient of the question. `None` = the operator (dashboard
     /// path); `Some(<agent>)` = a peer agent asked via
@@ -288,14 +289,14 @@ fn row_to_question(row: &rusqlite::Row<'_>) -> rusqlite::Result<OpQuestion> {
         question: row.get(2)?,
         options,
         multi: multi != 0,
-        asked_at: hive_sh4re::wire_time::WireTime(row.get(5)?),
+        asked_at: hive_sh4re::wire_time::from_secs(row.get(5)?),
         answered_at: row
             .get::<_, Option<i64>>(6)?
-            .map(hive_sh4re::wire_time::WireTime),
+            .map(hive_sh4re::wire_time::from_secs),
         answer: row.get(7)?,
         deadline_at: row
             .get::<_, Option<i64>>(8)?
-            .map(hive_sh4re::wire_time::WireTime),
+            .map(hive_sh4re::wire_time::from_secs),
         target: row.get(9)?,
     })
 }