0.3.2

Bugs Fixed:
1. CSS custom properties (:root vars) defined — batch manager, edge creator, DQA, namespace manager, version manag
er sections now render with correct colors
2. Duplicate .toolbar, .progress, .progress-bar CSS rules removed
3. Toast function no longer conflicts with .toast CSS class — uses translucent styling with fade-out animation
4. Search placeholder updated to show keyboard shortcuts

**Features Added:**
- Ctrl+K or `/` → focus search
- Ctrl+N → focus create node
- 1-6 → switch tabs (Dashboard/Questions/Edges/Tools/Graph/Brain)
- R → refresh stats + nodes (when not in input)