feat: refactor LicenseKey to use trial field instead of metadata for …

core/src/test/scala/app/softnetwork/elastic/client/LicenseExecutorSpec.scala

@@ -177,7 +177,7 @@ class LicenseExecutorSpec extends AnyFlatSpec with Matchers {
         licenseType = LicenseType.Pro,
         features = Feature.values.toSet,
         expiresAt = Some(Instant.now().plusSeconds(15 * 86400)),
-        metadata = Map("trial" -> "true")
+        trial = true
       )
     }
     val executor = new LicenseExecutor(strategy = mkStrategy(trialManager))
@@ -302,7 +302,7 @@ class LicenseExecutorSpec extends AnyFlatSpec with Matchers {
       licenseType = LicenseType.Pro,
       features = Feature.values.toSet,
       expiresAt = Some(Instant.parse("2026-07-08T23:59:59Z")),
-      metadata = Map("trial" -> "true")
+      trial = true
     )
     val executor = new LicenseExecutor(
       strategy = mkStrategy(proManager, refreshResult = Right(trialKey))

licensing/src/main/scala/app/softnetwork/elastic/licensing/package.scala

@@ -102,11 +102,12 @@ package object licensing {
     metadata: Map[String, String] = Map.empty,
     quota: Option[Quota] = None,
     usage: Option[LicenseUsage] = None,
-    platform: Option[Platform] = None
+    platform: Option[Platform] = None,
+    trial: Boolean = false
   ) {
 
     /** Whether this is a trial license (Pro trial via API key). */
-    def isTrial: Boolean = metadata.get("trial").contains("true")
+    def isTrial: Boolean = trial
 
     /** Days remaining until expiration, or None if no expiry. Positive = not yet expired. */
     def daysRemaining: Option[Long] = daysRemainingAt(java.time.Instant.now())

licensing/src/test/scala/app/softnetwork/elastic/licensing/LicenseKeySpec.scala

@@ -87,13 +87,13 @@ class LicenseKeySpec extends AnyFlatSpec with Matchers {
     key.metadata shouldBe empty
   }
 
-  "isTrial" should "return true when trial metadata is set" in {
+  "isTrial" should "return true when trial field is set" in {
     val key = LicenseKey(
       id = "org-123",
       licenseType = LicenseType.Pro,
       features = Set(Feature.MaterializedViews),
       expiresAt = Some(Instant.now().plus(Duration.ofDays(30))),
-      metadata = Map("trial" -> "true")
+      trial = true
     )
     key.isTrial shouldBe true
   }
@@ -103,13 +103,12 @@ class LicenseKeySpec extends AnyFlatSpec with Matchers {
       id = "org-123",
       licenseType = LicenseType.Pro,
       features = Set(Feature.MaterializedViews),
-      expiresAt = Some(Instant.now().plus(Duration.ofDays(365))),
-      metadata = Map("trial" -> "false")
+      expiresAt = Some(Instant.now().plus(Duration.ofDays(365)))
     )
     key.isTrial shouldBe false
   }
 
-  it should "return false when trial metadata is absent" in {
+  it should "return false when trial defaults to false" in {
     LicenseKey.Community.isTrial shouldBe false
   }