refactor: use nowMillis ext for reset timestamp

Co-authored-by: Cursor <cursoragent@cursor.com>

Author: piotr-iohk

AGENTS.md

@@ -178,6 +178,7 @@ suspend fun getData(): Result<Data> = withContext(Dispatchers.IO) {
 - ALWAYS check existing code patterns before implementing new features
 - USE existing extensions and utilities rather than creating new ones
 - ALWAYS use or create `Context` extension properties in `ext/Context.kt` instead of raw `context.getSystemService()` casts
+- NEVER use `System.currentTimeMillis()`, use time helpers from `ext/DateTime.kt` instead (e.g. `nowMillis()`, `Clock.nowMs()`) — they accept a `Clock` and are unit-testable
 - ALWAYS apply the YAGNI (You Ain't Gonna Need It) principle for new code
 - ALWAYS reuse existing constants
 - ALWAYS ensure a method exist before calling it

app/src/main/java/to/bitkit/repositories/LightningRepo.kt

@@ -61,6 +61,7 @@ import to.bitkit.di.BgDispatcher
 import to.bitkit.env.Defaults
 import to.bitkit.env.Env
 import to.bitkit.ext.getSatsPerVByteFor
+import to.bitkit.ext.nowMillis
 import to.bitkit.ext.nowTimestamp
 import to.bitkit.ext.toPeerDetailsList
 import to.bitkit.ext.totalNextOutboundHtlcLimitSats
@@ -99,6 +100,7 @@ import kotlin.time.Duration
 import kotlin.time.Duration.Companion.milliseconds
 import kotlin.time.Duration.Companion.minutes
 import kotlin.time.Duration.Companion.seconds
+import kotlin.time.ExperimentalTime
 
 @Singleton
 @Suppress("LongParameterList", "TooManyFunctions", "LargeClass")
@@ -1629,6 +1631,7 @@ class LightningRepo @Inject constructor(
      * Returns the device epoch seconds captured after the VSS deletes and before the node restart,
      * so callers can require any scores sync timestamp to be strictly newer to prove a post-reset download.
      */
+    @OptIn(ExperimentalTime::class)
     suspend fun resetPathfindingScores(walletIndex: Int = 0): Result<Long> = withContext(bgDispatcher) {
         Logger.info("Resetting pathfinding scores", context = TAG)
 
@@ -1654,7 +1657,7 @@ class LightningRepo @Inject constructor(
             return@withContext Result.failure(it)
         }
 
-        val resetAtSecs = System.currentTimeMillis() / 1000
+        val resetAtSecs = nowMillis() / 1000
 
         start(walletIndex = walletIndex, shouldRetry = false)
             .map { resetAtSecs }