catalog: Soundza (#163) lacks the ai-generated tag, a quote of its redistribution ban, and a "Still open" note #184

Why it matters

Soundza was merged in #163. The entry misses rules that the guides and the AI-assets policy apply to similar entries.

Evidence (catalog/audio/soundza.md)

• It is status: needs-review but has no line saying what is still open. The only other such entry is megascans-starter-content.
• Notes (line 24) state a ban on standalone redistribution, but the Evidence section never quotes that clause.
• Notes (line 26) say some sounds are AI-generated. tags (line 11) has no ai-generated, and there is no link to docs/ai-assets.md. Both are required by that guide's rule 2, as done on budgetpixel-sfx and the bitnuker-* entries.

Suggested approach

• Re-read the terms and quote the redistribution clause with a date.
• Add the tag and the guide link.
• Either set the entry active or add a "Still open:" line.
• Consider a validator rule that every needs-review entry carries a "Still open" line.

Done when

The entry quotes every restriction its Notes state, is tagged per the AI-assets rules, and the validator enforces the needs-review note.