remove :message-store-api and migrate functionality to :journal-api and :reflection-api

- Removed `:message-store-api` module and associated classes (ConversationStore, ReflectionStore, Ids, etc.).
- Migrated reusable components to `:journal-api` (conversation-related) and `:reflection-api` (reflection-related).
- Updated imports and module dependencies across all projects to reflect new structure.
- Adjusted build scripts and tests for compatibility with the new APIs.

llm-tools/src/commonMain/kotlin/pw/binom/agentik/llm/tools/LlmMemoryReviewer.kt

@@ -10,7 +10,7 @@ import pw.binom.agentik.memory.MemoryStore
 import pw.binom.agentik.memory.MemoryStoreEvent
 import pw.binom.agentik.memory.NewMemoryNote
 import pw.binom.agentik.memory.ReviewedTurn
-import pw.binom.agentik.messageStore.Ids
+import pw.binom.agentik.journal.Ids
 import pw.binom.litert.LiteLlm
 import kotlin.time.Clock
 import kotlin.time.Instant

llm-tools/src/commonMain/kotlin/pw/binom/agentik/llm/tools/LlmReflector.kt

@@ -5,8 +5,8 @@ import kotlinx.coroutines.withContext
 import pw.binom.agentik.memory.ConversationTurn
 import pw.binom.litert.LiteConversationConfig
 import pw.binom.litert.LiteLlm
-import pw.binom.agentik.messageStore.Ids
-import pw.binom.agentik.messageStore.Reflection
+import pw.binom.agentik.journal.Ids
+import pw.binom.agentik.reflection.Reflection
 import kotlin.time.Clock
 
 /**
@@ -57,7 +57,7 @@ class LlmReflector(
             val parsed = ReflectionParser.parse(raw)
                 ?: return@withContext null
             Reflection(
-                id = Ids.reflection(),
+                id = pw.binom.agentik.reflection.Ids.new(),
                 conversationId = null, // будет проставлен caller'ом ChatConversation
                 createdAt = clock.now(),
                 turnsAnalyzed = turns.size,