Add project docs and GitHub Pages

.github/workflows/pages.yml

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+name: Deploy Docs to GitHub Pages
+
+on:
+  push:
+    branches: [ main ]
+  workflow_dispatch:
+
+permissions:
+  contents: read
+  pages: write
+  id-token: write
+
+concurrency:
+  group: 'pages'
+  cancel-in-progress: true
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v3
+      - uses: actions/configure-pages@v3
+      - uses: actions/upload-pages-artifact@v1
+        with:
+          path: './docs'
+  deploy:
+    needs: build
+    runs-on: ubuntu-latest
+    environment:
+      name: github-pages
+      url: ${{ steps.deployment.outputs.page_url }}
+    steps:
+      - id: deployment
+        uses: actions/deploy-pages@v1

README.md

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+# BackWizard
+
+BackWizard is a modular Ktor server application written in Kotlin. The project is structured as a multi‑module Gradle build and provides authentication, user management and admin utilities. The server is packaged as a Docker container and is deployed via GitHub Actions.
+
+## Project Structure
+
+- `app` – main application module containing the `Application.kt` entry point and Ktor plugins setup.
+- `core:core` – common utilities such as configuration helpers, response helpers and JWT utilities.
+- `core:database` – database plugin using Exposed ORM and PostgreSQL.
+- `feature:auth` – registration, login and token refresh logic.
+- `feature:user` – endpoints and domain logic for user data.
+- `feature:admin` – admin utilities like resetting the user table.
+
+Modules are declared in `settings.gradle.kts` and loaded using Koin for dependency injection.
+
+## Getting Started
+
+1. **Configuration** – supply `app/src/main/resources/application.conf` with database and JWT settings. The repository excludes this file from version control. Tests verify that all required properties exist.
+2. **Build** – run `./gradlew build` to compile and test the project.
+3. **Docker** – the `Dockerfile` creates a fat jar and exposes port `8080`.
+4. **Deployment** – GitHub Actions (`.github/workflows`) build, push and deploy Docker images.
+
+## Further Reading
+
+- [OpenAPI Specification](documentation/documentation.yaml)
+- `core` and `feature` modules for detailed implementation of each service.
+

docs/index.md

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+# BackWizard
+
+BackWizard is a modular Ktor server application written in Kotlin. The project is structured as a multi‑module Gradle build and provides authentication, user management and admin utilities. The server is packaged as a Docker container and is deployed via GitHub Actions.
+
+## Project Structure
+
+- `app` – main application module containing the `Application.kt` entry point and Ktor plugins setup.
+- `core:core` – common utilities such as configuration helpers, response helpers and JWT utilities.
+- `core:database` – database plugin using Exposed ORM and PostgreSQL.
+- `feature:auth` – registration, login and token refresh logic.
+- `feature:user` – endpoints and domain logic for user data.
+- `feature:admin` – admin utilities like resetting the user table.
+
+Modules are declared in `settings.gradle.kts` and loaded using Koin for dependency injection.
+
+## Getting Started
+
+1. **Configuration** – supply `app/src/main/resources/application.conf` with database and JWT settings. The repository excludes this file from version control. Tests verify that all required properties exist.
+2. **Build** – run `./gradlew build` to compile and test the project.
+3. **Docker** – the `Dockerfile` creates a fat jar and exposes port `8080`.
+4. **Deployment** – GitHub Actions (`.github/workflows`) build, push and deploy Docker images.
+
+## Further Reading
+
+- [OpenAPI Specification](documentation/documentation.yaml)
+- `core` and `feature` modules for detailed implementation of each service.
+