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.

storage-ksqlite/src/commonMain/kotlin/pw/binom/agentik/storage/ksqlite/KsqliteWorkingMemoryStore.kt

@@ -1,9 +1,9 @@
 package pw.binom.agentik.storage.ksqlite
 
 import kotlinx.serialization.json.Json
-import pw.binom.agentik.workingMemory.WorkingMemoryEntry
-import pw.binom.agentik.workingMemory.WorkingMemoryRow
-import pw.binom.agentik.workingMemory.WorkingMemoryStore
+import pw.binom.agentik.context.WorkingMemoryEntry
+import pw.binom.agentik.context.WorkingMemoryRow
+import pw.binom.agentik.context.ContextStore
 import pw.binom.agentik.messageStore.Ids
 import pw.binom.db.ksqlite.SQLiteConnection
 import pw.binom.db.ksqlite.SQLitePreparedStatement
@@ -16,7 +16,7 @@ import kotlinx.coroutines.withContext
 
 class KsqliteWorkingMemoryStore(
     private val connection: SQLiteConnection,
-) : WorkingMemoryStore {
+) : ContextStore {
 
     private val mutex = Mutex()
     private val json = Json { ignoreUnknownKeys = true }

storage-ksqlite/src/commonMain/kotlin/pw/binom/agentik/storage/ksqlite/MessageCodecs.kt

@@ -1,9 +1,9 @@
 package pw.binom.agentik.storage.ksqlite
 
 import kotlinx.serialization.json.Json
-import pw.binom.agentik.messageLog.MessageRecord
-import pw.binom.agentik.messageLog.decodeBodyPayload
-import pw.binom.agentik.messageLog.encodeBodyPayload
+import pw.binom.agentik.journal.MessageRecord
+import pw.binom.agentik.journal.decodeBodyPayload
+import pw.binom.agentik.journal.encodeBodyPayload
 import pw.binom.db.ksqlite.SQLiteResultSet
 import kotlin.time.Instant
 

storage-ksqlite/src/commonTest/kotlin/pw/binom/agentik/storage/ksqlite/KsqliteMessageStoreTest.kt

@@ -2,9 +2,9 @@ package pw.binom.agentik.storage.ksqlite
 
 import kotlinx.coroutines.flow.toList
 import kotlinx.coroutines.test.runTest
-import pw.binom.agentik.messageLog.Content
-import pw.binom.agentik.messageLog.MessageRecord
-import pw.binom.agentik.messageLog.TurnTokens
+import pw.binom.agentik.journal.Content
+import pw.binom.agentik.journal.MessageRecord
+import pw.binom.agentik.journal.TurnTokens
 import kotlin.test.AfterTest
 import kotlin.test.BeforeTest
 import kotlin.test.Test

storage-ksqlite/src/commonTest/kotlin/pw/binom/agentik/storage/ksqlite/KsqliteWorkingMemoryStoreTest.kt

@@ -1,8 +1,8 @@
 package pw.binom.agentik.storage.ksqlite
 
 import kotlinx.coroutines.test.runTest
-import pw.binom.agentik.messageLog.Content
-import pw.binom.agentik.workingMemory.WorkingMemoryEntry
+import pw.binom.agentik.journal.Content
+import pw.binom.agentik.context.WorkingMemoryEntry
 import kotlin.test.AfterTest
 import kotlin.test.BeforeTest
 import kotlin.test.Test

storage-ksqlite/src/commonTest/kotlin/pw/binom/agentik/storage/ksqlite/SchemaMigrationTest.kt

@@ -95,9 +95,9 @@ class SchemaMigrationTest {
                 )
             )
             stores.messages.append(
-                pw.binom.agentik.messageLog.MessageRecord.UserMessage(
+                pw.binom.agentik.journal.MessageRecord.UserMessage(
                     id = "m1", conversationId = "c1",
-                    content = listOf(pw.binom.agentik.messageLog.Content.Text("hi")),
+                    content = listOf(pw.binom.agentik.journal.Content.Text("hi")),
                     createdAt = kotlin.time.Instant.parse("2026-09-15T10:00:01Z"),
                 )
             )