Add Dreame Vacuum Notifications blueprint

Sends customizable notifications for Dreame vacuum events (cleaning
status, consumable alerts, warnings, errors, and informational messages).
Requires the Dreame Vacuum integration.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

Common/Dreame Vacuum/README.md

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+# Dreame Vacuum Notifications
+
+Sends customizable notifications for Dreame vacuum events. Requires the [Dreame Vacuum](https://github.com/Tasshack/dreame-vacuum) integration.
+
+## Features
+
+- Notifications for cleaning started and completed
+- Consumable end-of-life alerts (brush, filter, mop pad, sensor, etc.)
+- Device warning and error notifications
+- Informational alerts (e.g., action blocked by Do Not Disturb)
+- Individual toggle for each event type
+- Customizable message templates with variable substitution
+- Multiple notification targets
+
+## How It Works
+
+The blueprint listens to events fired by the Dreame Vacuum integration:
+
+| Event | Description |
+| --- | --- |
+| `dreame_vacuum_task_status` | Cleaning job started or completed |
+| `dreame_vacuum_consumable` | Consumable reached end-of-life |
+| `dreame_vacuum_warning` | Dismissible device warning |
+| `dreame_vacuum_error` | Device fault |
+| `dreame_vacuum_information` | Action blocked by user settings |
+
+Events are filtered by the configured vacuum entity, so only the selected vacuum triggers notifications.
+
+## Configuration
+
+| Input | Description |
+| --- | --- |
+| **Vacuum Entity** | The Dreame vacuum entity to monitor |
+| **Notification Targets** | One or more `notify` entities |
+| **Event Toggles** | Enable/disable each event type independently |
+| **Message Templates** | Customizable message for each event type |
+
+## Message Template Variables
+
+### Cleaning Started
+
+| Variable | Description |
+| --- | --- |
+| `{vacuum_name}` | Friendly name of the vacuum |
+| `{cleaning_mode}` | Cleaning mode (e.g., sweeping, mopping) |
+| `{status}` | Current status |
+
+### Cleaning Completed
+
+| Variable | Description |
+| --- | --- |
+| `{vacuum_name}` | Friendly name of the vacuum |
+| `{cleaning_mode}` | Cleaning mode used |
+| `{status}` | Final status |
+| `{cleaned_area}` | Area cleaned (m²) |
+| `{cleaning_time}` | Cleaning duration (minutes) |
+
+### Consumable Depleted
+
+| Variable | Description |
+| --- | --- |
+| `{vacuum_name}` | Friendly name of the vacuum |
+| `{consumable}` | Consumable name (e.g., Main Brush, Side Brush, Filter, Mop Pad) |
+
+### Warning
+
+| Variable | Description |
+| --- | --- |
+| `{vacuum_name}` | Friendly name of the vacuum |
+| `{warning}` | Warning description |
+| `{code}` | Warning code |
+
+### Error
+
+| Variable | Description |
+| --- | --- |
+| `{vacuum_name}` | Friendly name of the vacuum |
+| `{error}` | Error description |
+| `{code}` | Error code |
+
+### Information
+
+| Variable | Description |
+| --- | --- |
+| `{vacuum_name}` | Friendly name of the vacuum |
+| `{information}` | Information message (e.g., Dust Collection, Cleaning Paused) |
+
+## Debug Mode
+
+Enable **Debug Notifications** in the Debug section to send persistent notifications with raw event data for troubleshooting.
+
+## Author
+
+Alexei Dolgolyov (<dolgolyov.alexei@gmail.com>)