[Bug]: Synthetic event generator fails seed and validation tests

[Deepthit-23]

Affected Component

Other / Not sure

Bug Description

The event generator script utils/synthetic_event_generator.py does not support features expected by its tests:

1. generate_event() does not accept the seed keyword parameter, throwing a TypeError during deterministic verification.
2. generate_events() does not validate if interval_seconds is positive, failing to raise the expected ValueError.

Steps to Reproduce

Run the event generator tests:

python -m pytest tests/test_synthetic_event_generator.py -v


### Expected Behavior

- `generate_event` should accept a `seed` argument and seed the `random` module for deterministic generation.
- `generate_events` should reject invalid intervals by raising a `ValueError`.

### Actual Behavior

1. `test_generate_event_is_deterministic_with_seed` raises a `TypeError`:
TypeError: generate_event() got an unexpected keyword argument 'seed'

### Python Version

3.11

### Operating System

Windows 11

### Inference Device

None

### Error Log / Traceback

```shell

Screenshots or Recordings

No response

Additional Context

No response

Checklist

• I have searched existing issues and this is not a duplicate.
• I have tested with the latest version of the main branch.

[Deepthit-23]

@Devnil434 could you please assign this issue to me?