**Manufacturing progression**
- Tier 1-4 progression across levels 1-100 (upgrades every 5 levels)
- Tier 5 progression across levels 101-200 (upgrades every 20 levels)
- Perk effects are automatically derived from player level/rank state
- **Anti-boost XP system**
- XP is granted only when crafted and sold counts are paired per tier
- Farming lower tiers after unlocking higher tiers gives reduced XP
- Notifications explain when XP is earned (or why it is not)
- **Two bag item types**
- **Crafted product bags** (used for manufacturing/selling loop)
- **Wearable storage bags** (`wear_*`) with unique stash IDs
- **Immersive selling flow**
- NPC walks in, player confirms with `E`, handoff animation, NPC leaves with bag prop
- **UI**
- Separate **Bags** category for wearable storage
- Tier lock checks for wearable purchases
- Profile/perk/manufacturing display in NUI
