fix(get_asset_details): return asset tags

[bobby-smedley]

🎯 What does this PR do?

The asset query never selected tags, so every asset came back looking untagged regardless of whether it had tags.

Select tags in the shared asset query, with an explicit limit of 100 — the knowledge-graph schema defaults every list field to 10 and truncates silently.

✅ Checklist

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