refactor: migrate EventStore and MessageStore to :outbox-api and :journal-api

- Replaced usages of `:message-store-api` and `:working-memory-api` with `:journal-api`, `:outbox-api`, and `:context-api`.
- Deprecated legacy `EventStore` and `MessageStore` interfaces, added `typealias` for backward compatibility.
- Updated imports across all modules with references to `:journal-api` and `:outbox-api`.
- Introduced `journalRoutes` and `outboxRoutes` in `:server` for audit log and live event stream endpoints.
- Adjusted `Agent` to expose read-only `journal` and `outbox` stores for improved modularity and clarity.
- Removed legacy Event and AgentEvent definitions from `:proto`, migrated to `:outbox-api`.
- Storage-related modules have been updated to support the new APIs consistently.

message-log-ksqlite/build.gradle.kts

@@ -0,0 +1,33 @@
+plugins {
+    alias(libs.plugins.kotlin.multiplatform)
+    alias(libs.plugins.kotlin.serialization)
+}
+
+// KMP-реализация MutableMessageStore поверх ksqlite (https://github.com/caffeine-mgn/ksqlite).
+//
+// Цели сборки (параллельны :storage-ksqlite):
+//  - jvm() — основная, тесты гоняются здесь (in-memory DB без файла)
+//  - linuxX64() / mingwX64() — smoke-проверка что KMP реально KMP
+//
+// Apple targets невозможно собрать на Linux — Kotlin Multiplatform plugin auto-disables их.
+
+kotlin {
+    jvmToolchain(21)
+
+    jvm()
+    linuxX64()
+    mingwX64()
+
+    sourceSets {
+        commonMain.dependencies {
+            api(project(":message-log-api"))
+
+            implementation("pw.binom.db:ksqlite:0.1.0")
+            implementation(libs.kotlinx.serialization.json)
+        }
+        commonTest.dependencies {
+            implementation(kotlin("test"))
+            implementation(libs.kotlinx.coroutines.test)
+        }
+    }
+}