docs(rules): refresh for insert_id UUID cursor + AgentEventPage

- LogQueryController: note response shape, sort param, and that the
  cursor tiebreak is the insert_id UUID column (not exchange/instance)
- AgentEventsController: cursor now carries insert_id UUID (was instanceId);
  order is (timestamp DESC, insert_id DESC)
- core-classes: add AgentEventPage record; note that the non-paginated
  AgentEventRepository.query(...) path has been removed
- core-classes: note LogSearchRequest.sources/levels are now List<String>
  with multi-value OR semantics

Keeps the rule files in sync with the cursor-pagination + multi-select
filter work on main.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

.claude/rules/core-classes.md

@@ -17,7 +17,8 @@ paths:
 - `CommandType` — enum for command types (config-update, deep-trace, replay, route-control, etc.)
 - `CommandStatus` — enum for command acknowledgement states
 - `CommandReply` — record: command execution result from agent
-- `AgentEventRecord`, `AgentEventRepository` — event persistence
+- `AgentEventRecord`, `AgentEventRepository` — event persistence. `AgentEventRepository.queryPage(...)` is cursor-paginated (`AgentEventPage{data, nextCursor, hasMore}`); the legacy non-paginated `query(...)` path is gone.
+- `AgentEventPage` — record: `(List<AgentEventRecord> data, String nextCursor, boolean hasMore)` returned by `AgentEventRepository.queryPage`
 - `AgentEventListener` — callback interface for agent events
 - `RouteStateRegistry` — tracks per-agent route states
 
@@ -47,7 +48,7 @@ paths:
 - `SearchRequest` / `SearchResult` — search DTOs
 - `ExecutionStats`, `ExecutionSummary` — stats aggregation records
 - `StatsTimeseries`, `TopError` — timeseries and error DTOs
-- `LogSearchRequest` / `LogSearchResponse` — log search DTOs
+- `LogSearchRequest` / `LogSearchResponse` — log search DTOs. `LogSearchRequest.sources` / `levels` are `List<String>` (null-normalized, multi-value OR); `cursor` + `limit` + `sort` drive keyset pagination. Response carries `nextCursor` + `hasMore` + per-level `levelCounts`.
 
 ## storage/ — Storage abstractions