Mods Tier Progression

# Changelog: ModsTierProgression
All notable changes to this project are documented in this file.
## [1.0] - 2026-07-12
### Added
- **Quality 1-6 Mod Crafting**: Enabled progressive tier crafting for 35 custom and vanilla weapon, tool, and armor modifications.
- **Dynamic Economy Engine**: Introduced an automatic material cost multiplier framework (+100% to +500% raw ingredients) to create a late-game resource sink.
- **Legendary Part Hard Gate**: Configured a hard gate for Tier 6 crafting, forcefully requiring exactly 1 Legendary Part (`resourceLegendaryParts`).
- **Inclusive "OR" Unlock Matrix**: Connected shared modifications (like grips and global weapon components) to multiple magazine streams so playstyles are never bottlenecked.
- **Engine Safety Injection**: Forced the `HasQuality` attribute to `true` across all 35 items to cleanly activate the right-arrow UI slider in the crafting menu.
### Changed
- **Optimized XPath Routing**: Consolidated 35 repetitive xml recipe appends into a high-density, multi-targeted string array to prevent file size bloat.
- **Unrolled Progression Loops**: Swapped unstable `base_set` comma-arrays for discrete `base_add` progression rules to bypass a critical rounding bug in the engine parser.
- **Split-Tier Material Balancer**: Refactored the economic loop away from dynamic wildcards into explicit targeted whitelists to protect sensitive drops:
- **Bracket A (Heavy Industrial)**: Full +500% cost scaling.
- **Bracket B (Rare Tech)**: Throttled to +250% cost scaling.
- **Bracket C (Nightmare Bulk/Gems)**: Throttled to +100% cost scaling.
### Removed
- **Workstation Tool Clamps**: Dropped progressive adjustments for forge-installed tools (`toolAnvil`, `toolCookingPot`, `toolCookingGrill`) to prioritize vanilla stability and prevent hardcoded Tier 0 UI errors.
- **Obsolete `items.xml`**: Discarded the custom tracking property idea in favor of native tracking variables to fix loading recognition bugs.