feat: record CLI command telemetry

TASKS.md

@@ -184,7 +184,7 @@ Definition of Done:
 
 ## TASK-013 — Record CLI command execution
 
-Status: Todo
+Status: Done
 
 Goal:
 Record rdb CLI command execution using the telemetry system.
@@ -200,6 +200,14 @@ Acceptance Criteria:
 - Include timestamp
 - Add/update tests
 
+Definition of Done:
+
+- All 10 CLI commands record a telemetry event on invocation
+- Events have event_type "command" and target "rdb <cmd_name>"
+- Timestamps are present in UTC ISO format
+- New integration tests added to test_telemetry.py (4 new tests)
+- All 75 tests pass
+
 ## TASK-014 — Integrate telemetry with guardrails
 
 Status: Todo