From 4bbd87953fa0ac78ca22e4321cce458558319205 Mon Sep 17 00:00:00 2001
From: morluto <76467478+morluto@users.noreply.github.com>
Date: Tue, 27 Oct 2026 03:24:53 +0800
Subject: [PATCH] fix(environment): align recorded probe chronology

Use the shared recorded timestamp interpretation for replay ordering, including exact fractions and UTC interpretation of supported zone-less forms. Preserve native-Date fallback for unsupported historical spellings.

Validated environment comparison, state ordering and CLI tests; five new cases reproduce prior drift.
---
 .../environment/environmentCompare.test.ts    | 20 +++++++++++++------
 .../environment/environmentCompareProbe.ts    | 10 +---------
 2 files changed, 15 insertions(+), 15 deletions(-)

diff --git a/src/application/environment/environmentCompare.test.ts b/src/application/environment/environmentCompare.test.ts
index d1436ba915..d5335e2180 100644
--- a/src/application/environment/environmentCompare.test.ts
+++ b/src/application/environment/environmentCompare.test.ts
@@ -735,6 +735,11 @@ describe("probe request chronology", () => {
   it.each([
     ["2026-10-20T09:00:00.000100Z", "2026-10-20T10:00:00.0001+01:00"],
     ["2026-10-20T09:00:00.0001Z", "2026-10-20T09:00:00.000100"],
+    ["2026-10-20T10:00+01:00", "2026-10-20 09:00"],
+    [
+      "2026-10-20T10:00:00.0000000001+01:00",
+      "2026-10-20 09:00:00.000000000100",
+    ],
     ["Tue, 20 Oct 2026 09:00:00 GMT", "2026-10-20T09:00:00Z"],
   ])(
     "keeps ordinal order for equal instants and native-Date spelling compatibility (%s)",
@@ -860,17 +865,20 @@ const registerProbeOrderingAndCaptureCases = () => {
   });
 
   it.each([
-    ["0002", "0001"],
-    ["002", "001"],
+    ["2026-10-20T09:00:00.0002Z", "2026-10-20T09:00:00.0001Z"],
+    ["2026-10-20T09:00:00.002Z", "2026-10-20T09:00:00.001Z"],
+    ["2026-10-20 09:00:00.0000000002Z", "2026-10-20 09:00:00.0000000001Z"],
+    ["2026-10-20 09:00:00.0000000002", "2026-10-20T10:00:00.0000000001+01:00"],
+    ["2026-10-20 09:01", "2026-10-20T10:00+01:00"],
   ])(
-    "orders probe requests by complete fractional timestamps: %s after %s",
-    (readFraction, writeFraction) => {
+    "orders probe requests by the owner's UTC instant: %s after %s",
+    (readTime, writeTime) => {
       const report = run(
         analysisViewCaptureEvidence(
           environmentManifestCaptureFixture([
             {
               ...exchange(0, "GET", "http://app.example/api/books/2", 404),
-              startedDateTime: `2026-10-20T09:00:00.${readFraction}Z`,
+              startedDateTime: readTime,
               response: {
                 status: 404,
                 content: {
@@ -881,7 +889,7 @@ const registerProbeOrderingAndCaptureCases = () => {
             },
             {
               ...exchange(0, "DELETE", "http://app.example/api/books/2", 204),
-              startedDateTime: `2026-10-20T09:00:00.${writeFraction}Z`,
+              startedDateTime: writeTime,
             },
           ]),
         ),
diff --git a/src/application/environment/environmentCompareProbe.ts b/src/application/environment/environmentCompareProbe.ts
index b49a69d1af..8def1fa49a 100644
--- a/src/application/environment/environmentCompareProbe.ts
+++ b/src/application/environment/environmentCompareProbe.ts
@@ -56,15 +56,7 @@ const startedInstant = (
   const started = startedSchema.safeParse(record.reported);
   if (!started.success) return undefined;
   const reading = readRecordedDateTime(started.data.startedDateTime);
-  if (reading !== undefined) {
-    const { spelling } = reading;
-    const offsetTimestamp =
-      spelling.separator === "T" &&
-      (spelling.zone === "Z" || spelling.zone.includes(":"));
-    const clockTimestamp =
-      spelling.secondsPresent && spelling.fractionDigits <= 9;
-    if (offsetTimestamp || clockTimestamp) return reading.instant;
-  }
+  if (reading !== undefined) return reading.instant;
   // Preserve native-Date admission for legacy spellings, at its original precision.
   const ms = Date.parse(started.data.startedDateTime);
   return Number.isFinite(ms)