chore(spec): update api-surface snapshot for TimeRelativeTrigger exports (#1874)

gen:api-surface — records the 5 new @objectstack/spec/automation exports
(TimeRelativeTriggerSchema, TimeRelativeTrigger, TimeRelativeTriggerInput,
TIME_RELATIVE_DEFAULT_CRON, TIME_RELATIVE_DEFAULT_MAX_RECORDS). Additive only:
0 breaking, 5 added. Gated by the check:api-surface CI job.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01AHzW68suiFuu6GdJyea8U4

Author: claude

packages/spec/api-surface.json

@@ -2069,7 +2069,12 @@
     "SyncExecutionStatusSchema (const)",
     "SyncMode (type)",
     "SyncModeSchema (const)",
+    "TIME_RELATIVE_DEFAULT_CRON (const)",
+    "TIME_RELATIVE_DEFAULT_MAX_RECORDS (const)",
     "TRY_CATCH_NODE_TYPE (const)",
+    "TimeRelativeTrigger (type)",
+    "TimeRelativeTriggerInput (type)",
+    "TimeRelativeTriggerSchema (const)",
     "Transition (type)",
     "TransitionSchema (const)",
     "TryCatchConfig (type)",