fix: prevent _ensure_hf_token from swallowing click.Abort

[alfredoclarifai]

Quick Fix Summary

• Fix _ensure_hf_token swallowing click.Abort due to a broad except Exception handler, which was producing a misleading empty warning (Unexpected error ensuring HF_TOKEN:) and allowing execution to continue past an intentional abort

Root Cause

When config.yaml is missing, _ensure_hf_token correctly raises click.Abort(). But the outer except Exception catches it, downgrades it to a cryptic warning, and lets execution fall through to ModelBuilder._validate_folder which then crashes with a noisy AssertionError traceback.

Fix

Add except click.Abort: raise before the general except Exception so the abort propagates as intended.

Closes #936

Test plan

• tests/cli/test_local_runner_cli.py — all 7 tests pass

🤖 Generated with Claude Code

[github-actions]

Package	Line Rate	Health
clarifai	45%	❌
clarifai.cli	65%	➖
clarifai.cli.templates	46%	❌
clarifai.client	65%	➖
clarifai.client.auth	67%	➖
clarifai.constants	100%	✔
clarifai.datasets	100%	✔
clarifai.datasets.export	80%	✔
clarifai.datasets.upload	75%	➖
clarifai.datasets.upload.loaders	37%	❌
clarifai.models	100%	✔
clarifai.modules	0%	❌
clarifai.rag	0%	❌
clarifai.runners	52%	➖
clarifai.runners.models	64%	➖
clarifai.runners.pipeline_steps	41%	❌
clarifai.runners.pipelines	77%	➖
clarifai.runners.utils	62%	➖
clarifai.runners.utils.data_types	72%	➖
clarifai.schema	100%	✔
clarifai.urls	60%	➖
clarifai.utils	60%	➖
clarifai.utils.evaluation	16%	❌
clarifai.workflows	95%	✔
Summary	61% (9852 / 16123)	➖

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