add post creating business case

publishing/api/build.gradle

@@ -44,7 +44,7 @@ kotlin {
                 if ((project.hasProperty('RELEASE_MODE') && project.property('RELEASE_MODE') == "true") || System.getenv('RELEASE_MODE') == "true") {
                     api "com.insanusmokrassar:postssystem.core.api:$core_version"
                 } else {
-                    api projectByName("postssystem.core.api")
+                    api projectByName("core.api")
                 }
             }
         }

publishing/api/src/commonMain/kotlin/com/insanusmokrassar/postssystem/core/publishing/PostKeyGenerator.kt

@@ -0,0 +1,5 @@
+package com.insanusmokrassar.postssystem.core.publishing
+
+import com.insanusmokrassar.postssystem.core.post.PostId
+
+typealias PostKeyGenerator = suspend (PostId, TriggerId) -> TriggerControlKey