feature(event-sourcing): baseline for the architecture review fixes.

- fixed the tool overlay in tui.
- fixed tool calling - added schemas.
- getting all sessionIds via event store.
- instead of sending all events on the replay - there's a new way for replaying.
- session snapshot is now a thing getting sent for previously created sessions.
- added logging to important parts.
- revert workflowId from WorkflowCompletedEvent.

testing/contracts/src/test/kotlin/com/correx/testing/contracts/model/orchestration/EventsTest.kt

@@ -37,7 +37,6 @@ class EventsTest {
             sessionId = SessionId("s1"),
             terminalStageId = StageId("stage-a"),
             totalStages = 1,
-            workflowId = workflowId,
         )
 
         val json = eventJson.encodeToString(EventPayload.serializer(), event)