docs: update project docs

docs/features-list.md

@@ -3,7 +3,7 @@
 > **Purpose**: Comprehensive inventory of all implemented features for code review and optimization
 > **Created**: 2025-10-15
 > **Updated**: 2025-10-16
-> **Status**: Phases 0-12 Complete
+> **Status**: Phases 0-12 Complete, Phase 13 In Progress (Keyboard Shortcuts, Notifications, Tooltips, Help Documentation)
 
 ---
 
@@ -293,13 +293,52 @@ src/
 
 ---
 
+### **13. Polish & UX Refinements (Phase 13)** ⏳ _In Progress_
+
+**Keyboard Shortcuts**:
+- Cmd/Ctrl+Shift+N: Create new snippet
+- Cmd/Ctrl+K: Toggle dataset manager
+- Cmd/Ctrl+S: Publish draft
+- Escape: Close any open modal
+- Dual handler system (document-level + Monaco integration)
+- Cross-platform support (Cmd on Mac, Ctrl on Windows/Linux)
+
+**Toast Notification System**:
+- Four types: error, success, warning, info
+- Bottom-right positioning, 4-second auto-dismiss
+- Slide-in/slide-out animations
+- Manual close button
+- Replaced 19 `alert()` calls with contextual toasts
+- Kept `confirm()` dialogs for destructive actions
+
+**Tooltips**:
+- Added to all interactive elements (buttons, links, controls)
+- Keyboard shortcut hints included where applicable
+- Consistent tooltip text across the application
+
+**Enhanced Help Documentation**:
+- Comprehensive Help modal with 6 sections
+- About Astrolabe (project vision and approach)
+- Key Features (scannable highlights)
+- Getting Started (4-step workflow guide)
+- Keyboard Shortcuts (reference table)
+- Storage & Limits (with data persistence warning)
+- Tips & Tricks (power user features)
+
+**Files**: `app.js` (keyboard handlers), `config.js` (Toast utility), `styles.css` (toast/help styles), `index.html` (help modal)
+
+---
+
 ## 📝 **Next Steps**
 
-### Phase 12 Complete! All dataset features implemented.
+### Phase 13 In Progress! Keyboard shortcuts, notifications, tooltips, and help documentation complete.
 
-**Potential Next Phases**:
-- **Phase 13**: Polish & UX Refinements (keyboard shortcuts, tooltips, loading states)
+**Remaining Phase 13 Tasks**:
+- [ ] Loading states for rendering
+- [ ] Empty states (no snippets, no datasets)
+- [ ] Improved visual design polish
+- [ ] Cross-browser testing
+
+**Future Phases**:
 - **Phase 14**: Advanced Snippet Features (tagging system, templates, bulk operations)
 - **Phase 15**: Authentication & Backend (cloud sync, sharing)
-
-**Current Priority**: Code review and optimization of Phase 12 features if needed.