[feature]: Accompany task and job executions with custom metrics

### Tell us about the problem you're trying to solve

TaskExecution:
CREATED, STARTED, COMPLETED, FAILED, CANCELLED
Job:
CREATED, STARTED, COMPLETED, FAILED, STOPPED

All job and task events should be displayed through an observability framework.

### Describe the solution you’d like

-

### Describe the alternative you’ve considered or used

-

### Additional context

_No response_

Start by locating the TaskExecution and Job lifecycle event handling and the observability framework used by the project. Trace the CREATED, STARTED, COMPLETED, FAILED, CANCELLED, and STOPPED events, then clarify how custom metrics should be emitted and displayed for each event before implementation.

Written by the indexing model from the issue text.