docs(06-02): add Docker deployment section to README

- Quick Start with docker-compose commands
- Configuration with key environment variables
- Reverse proxy setup instructions
- Data persistence and volume info
- Backup and restore procedures
- Health check verification

README.md

@@ -1,32 +1,14 @@
-# sv
+# TaskPlaner
 
-Everything you need to build a Svelte project, powered by [`sv`](https://github.com/sveltejs/cli).
-
-## Creating a project
-
-If you're seeing this, you've probably already done this step. Congrats!
-
-```sh
-# create a new project
-npx sv create my-app
-```
-
-To recreate this project with the same configuration:
-
-```sh
-# recreate this project
-npx sv create --template minimal --types ts --no-install .
-```
+A simple task and thought capture app. Quickly add tasks, thoughts, and notes from any device.
 
 ## Developing
 
-Once you've created a project and installed dependencies with `npm install` (or `pnpm install` or `yarn`), start a development server:
+Install dependencies and start a development server:
 
 ```sh
+npm install
 npm run dev
-
-# or start the server and open the app in a new browser tab
-npm run dev -- --open
 ```
 
 ## Building
@@ -37,6 +19,85 @@ To create a production version of your app:
 npm run build
 ```
 
-You can preview the production build with `npm run preview`.
+## Docker Deployment
 
-> To deploy your app, you may need to install an [adapter](https://svelte.dev/docs/kit/adapters) for your target environment.
+### Quick Start
+
+```bash
+# Build and start the container
+docker-compose up -d
+
+# View logs
+docker-compose logs -f
+
+# Stop the container
+docker-compose down
+```
+
+The application will be available at http://localhost:3000
+
+### Configuration
+
+Copy `.env.example` to `.env` and customize:
+
+```bash
+cp .env.example .env
+```
+
+Key settings:
+- `ORIGIN` - Required for production. Set to your public URL (e.g., `https://tasks.example.com`)
+- `BODY_SIZE_LIMIT` - Max upload size. Default: `512kb`, recommended: `10M`
+- `PORT` - Server port inside container. Default: `3000`
+
+### Behind a Reverse Proxy
+
+When running behind nginx, traefik, or similar, uncomment these in `.env`:
+
+```bash
+PROTOCOL_HEADER=x-forwarded-proto
+HOST_HEADER=x-forwarded-host
+ADDRESS_HEADER=x-forwarded-for
+XFF_DEPTH=1
+```
+
+### Data Persistence
+
+Data is stored in a Docker named volume (`taskplaner_data`). This includes:
+- SQLite database (`/app/data/taskplaner.db`)
+- Uploaded images (`/app/data/uploads/`)
+
+The volume persists across container restarts and updates.
+
+### Backup & Restore
+
+Create a backup:
+```bash
+./backup.sh
+```
+
+Backups are saved to `./backups/` with timestamps.
+
+Restore from backup:
+```bash
+# Stop the container first
+docker-compose down
+
+# Restore (replace TIMESTAMP with actual backup filename)
+docker run --rm \
+  -v taskplaner_taskplaner_data:/data \
+  -v $(pwd)/backups:/backup \
+  alpine tar xzf /backup/taskplaner_backup_TIMESTAMP.tar.gz -C /data
+
+# Start the container
+docker-compose up -d
+```
+
+### Health Check
+
+The container includes a health check at `/health`. View status:
+
+```bash
+docker-compose ps
+```
+
+A healthy container shows `(healthy)` in the status column.