docs: restructure Phase 2 (TUI priority) + update Phase 3

docs/plans/2024-06-22-hostkeeper-design.md

@@ -687,26 +687,24 @@ Continue anyway? [y/N]
 
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-### Phase 2: Enhanced Features (4-6 weeks)
+### Phase 2: TUI Overhaul & Enhanced Features (4-6 weeks)
 
-**TUI Enhancement:**
+**Priority 1 — TUI Overhaul:**
-- Rich TUI interface for all operations
+- Tab system with orange theme (TabManager, tab bar, keyboard shortcuts)
-- Dual-pane SFTP browser
+- Multi-session SSH tabs (live interactive shells within TUI)
-- Key management UI
+- TUI forms for add/edit hosts (replace CLI prompts)
-- Snippet manager
+- SFTP file browser in TUI tab
-- Connection snippets execution
+- Key & snippet management in TUI
 
-**Security Enhancement:**
+**Priority 2 — Security Enhancement:**
 - AES-256 encryption for storage
 - Master password protection
 - Secure credential export/import
-- Enhanced error messages
 
-**User Experience:**
+**Priority 3 — UX Polish:**
-- Shell completion
 - Configuration profiles
-- Theme support
+- Theme customization
-- Keyboard shortcuts
+- Enhanced error messages in TUI
 
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@@ -720,8 +718,6 @@ Continue anyway? [y/N]
 
 **Advanced Terminal:**
 - Custom terminal emulator
-- Multiple session management
-- Tab support
 - Advanced text selection
 
 **Integration:**