Added delete note functionality with confirmation modal

.gitignore

@@ -52,3 +52,4 @@ data/
 
 reproduce_auth_500.py
 debug_list_notes.py
+DEPLOY_TO_HF.md

Dockerfile

@@ -3,9 +3,11 @@ FROM python:3.11-slim
 
 WORKDIR /app
 
-# Install Node.js for frontend build
+# Install Node.js 20.x for frontend build (required for React 19, Vite 7)
 RUN apt-get update && \
-    apt-get install -y nodejs npm curl && \
+    apt-get install -y curl gnupg && \
+    curl -fsSL https://deb.nodesource.com/setup_20.x | bash - && \
+    apt-get install -y nodejs && \
     rm -rf /var/lib/apt/lists/*
 
 # Copy and install frontend dependencies

GITSUMMARY.md

@@ -0,0 +1,85 @@
+# Git Summary - Delete Note Feature
+
+## Overview
+Implemented complete delete note functionality with confirmation dialog to prevent accidental deletions.
+
+## Changes Made
+
+### Backend (`backend/src/api/routes/notes.py`)
+- **Added DELETE endpoint** (`DELETE /api/notes/{path}`)
+  - Deletes note file from vault filesystem
+  - Removes all related index entries (metadata, tags, links)
+  - Updates index health statistics
+  - Returns `204 No Content` on success
+  - Returns `404 Not Found` if note doesn't exist
+  - Returns `500 Internal Server Error` for other failures
+
+### Frontend
+
+#### 1. API Service (`frontend/src/services/api.ts`)
+- **Added `deleteNote()` function**
+  - Accepts note path parameter
+  - Makes DELETE request to `/api/notes/{path}`
+  - URL-encodes path to handle special characters
+  - Returns Promise<void> (no content response)
+
+#### 2. New Component (`frontend/src/components/DeleteConfirmationDialog.tsx`)
+- **DeleteConfirmationDialog component**
+  - Reusable dialog component for confirming note deletion
+  - Props:
+    - `isOpen`: Controls dialog visibility
+    - `noteName`: Name of note being deleted (for confirmation message)
+    - `isDeleting`: Loading state during deletion
+    - `onConfirm`: Callback when user confirms deletion
+    - `onCancel`: Callback when user cancels
+  - Features:
+    - Displays note name in warning message
+    - "Cancel" button to abort deletion
+    - "Delete" button with destructive styling (red)
+    - Disables buttons during deletion request
+    - Shows "Deleting..." text while loading
+
+#### 3. Main App (`frontend/src/pages/MainApp.tsx`)
+- **Added state management**
+  - `isDeleteDialogOpen`: Boolean for dialog visibility
+  - `isDeleting`: Boolean for deletion loading state
+
+- **Added handler function `handleDeleteNote()`**
+  - Calls `deleteNote()` API with current note path
+  - Refreshes notes list after successful deletion
+  - Clears current note selection
+  - Auto-selects first available note
+  - Shows success/error toast notifications
+  - Extracts display name from note title or path
+  - Handles errors gracefully with error messages
+
+- **Connected UI**
+  - Passed `onDelete={() => setIsDeleteDialogOpen(true)}` to NoteViewer component
+  - Added DeleteConfirmationDialog component to page
+  - Dialog displays current note's title and handles confirmation
+
+## User Flow
+1. User clicks trash icon button in note viewer
+2. DeleteConfirmationDialog modal appears showing note name
+3. User can:
+   - Click "Cancel" to abort deletion
+   - Click "Delete" to confirm and delete the note
+4. On deletion:
+   - Note is removed from filesystem and database
+   - Notes list refreshes
+   - UI auto-selects next available note
+   - Success toast confirms deletion
+
+## Files Modified/Created
+- ✅ `backend/src/api/routes/notes.py` - Added DELETE endpoint
+- ✅ `frontend/src/services/api.ts` - Added deleteNote function
+- ✅ `frontend/src/components/DeleteConfirmationDialog.tsx` - New component
+- ✅ `frontend/src/pages/MainApp.tsx` - Integrated delete flow
+
+## Testing Recommendations
+- Test deleting a note and verify it's removed from UI
+- Test that deleting updates note count in footer
+- Test error handling (e.g., network failure)
+- Test that deletion dialog closes after confirmation
+- Test auto-selection of next note after deletion
+- Test deletion of last note (should show empty state)