# Sub-Task 7 Progress: SkillsTab Modifications

## Status: Completed

## Completed Steps
- [x] Understand current skill data structure and SkillsTab UI
- [x] Remove "Elemental Attunement" skill, add per-mana capacity upgrades (Bug 9)
- [x] Update Effect Research skill costs (Bug 11)
- [x] Move Research category skills to Mana, Meditation Focus to Mana (Bug 12)
- [x] Remove "Disenchanting" skill completely (Bug 13)
- [x] Test all skill changes in UI (build test)
- [x] Commit and push changes

## Bug Fix Details

### Bug 9: Per-Mana-Type Capacity Upgrades
- Removed "Elem. Attunement" skill
- Added per-mana-type capacity upgrades:
  - fireManaCap, waterManaCap, airManaCap, earthManaCap
  - lightManaCap, darkManaCap, deathManaCap
  - metalManaCap, sandManaCap, lightningManaCap
  - transferenceManaCap
- Each costs 100-250 of its own element mana (depending on tier)
- Added `cost` field to SkillDef type

### Bug 11: Effect Research Skills Cost Update
- Effect Research skills now cost:
  - Transference mana (base cost)
  - Element mana of the corresponding type (fire for Fire Spell Research, etc.)
- Updated all research skills with `cost` field
- Updated store.ts to handle new cost type
- Updated SkillsTab.tsx to display additional cost

### Bug 12: Skill Category Changes
- Moved all skills from "research" category to "mana" category
- Moved "Meditation Focus" from "study" to "mana" category
- Updated SKILL_CATEGORIES to remove "research" category
- Updated SkillsTab.tsx to use updated categories

### Bug 13: Disenchanting Skill Removal
- Removed from skills.ts (SKILLS_DEF)
- Removed from skill-evolution.ts (DISENCHANTING_TIERS and SKILL_EVOLUTION_PATHS)
- Removed from SkillDebug.tsx
- Removed from EnchantmentPreparer.tsx
- Removed from store.ts and crafting-slice.ts
- Removed from attunements.ts (both files)
- Updated test files (skills.test.ts)
- Removed from AttunementsTab.tsx display

## Notes
- All changes committed and pushed
- Build test passed (npm run build)
- Skill cost system now supports additional element mana costs
- Per-mana capacity upgrades provide 10% capacity increase per level (max 10 levels each)