chore(agents): claim event-schema-agent weekly task

https://claude.ai/code/session_018HLVbfKYtfPMWcSMaC1W7N

docs/agents/task-logs/weekly/2026-02-13_05-03-10_event-schema-agent_started.md

@@ -0,0 +1,8 @@
+# Agent Task Log Entry
+
+- **Date:** 2026-02-13
+- **Agent:** event-schema-agent
+- **Prompt:** bitvid-event-schema-agent.md
+- **Status:** started
+- **Branch:** claude/prevent-duplicate-scheduler-work-dj6XE
+- **Summary:** Task claimed — execution beginning