1. Node selector shows live RAM/disk usage from Pterodactyl API (/node-info endpoint)
2. Disk allocation field, pre-filled at 3× estimated pack size
3. JVM args textarea auto-populated with Aikar G1GC flags
4. Spawn type: added 'vanilla' as new default, cleaned labels
5. Java version auto-selects from MC version (<=1.16→8, 1.17-1.20→17, 1.21+→21)
6. Port auto-assigned from max used port on node (/next-port endpoint), read-only + Re-roll
7. Pack size estimate shown on details card from provider file metadata
New endpoints: GET /node-info (Pterodactyl nodes API), GET /next-port?node=X (DB query)
All changes in _pack_details.ejs + modpack-installer.js. No migrations.
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