feature/data persistence (#1180)

- **feat: add documentation and GitHub Actions workflow for publishing
documentation**
- **docs(concepts): add documentation for chain modules**
- **refactor: Simplify session management with SQLite storage and remove
deprecated code**
- **refactor: Simplify database initialization and remove
DatabaseContext**
- **refactor: move connection handling logic to resolver package**
- **feat: implement session management with database persistence**
- **feat: Ensure config directory exists when creating database path**
- **feat: Add SetUserHandle function to set user handle in session**
- **feat: Add public methods to set session fields with database save**
- **refactor: Remove unused session setter functions**
- **feat: Add getter methods for all Session Model properties**
- **feat: enhance Session model with user name details**
- **feat: add Motr support and update UI elements**
- **<no value>**
- **feat: Add unique handle constraint and method to check handle
existence**
- **docs: update site URL to onsonr.dev**
- **fix: correct import statement for database package**
- **test: updated CI to run tests on pull requests and merge groups**
- **docs: remove reference to develop branch in workflow**
- **feat: add WebAuthn support for user registration**
- **fix: correct smart account attenuation preset name**
- **feat: add ComputeIssuerDID and ComputeSonrAddr functions to ucan
package**
- **test: add unit tests for MPC keyset and keyshare**
- **feat: introduce new script to streamline GitHub issue creation**

pkg/gateway/internal/database/models.go

@@ -1,19 +1,41 @@
 package database
 
+import (
+	"net/http"
+
+	"github.com/labstack/echo/v4"
+	"gorm.io/gorm"
+)
+
+var (
+	ErrInvalidCredentials = echo.NewHTTPError(http.StatusUnauthorized, "Invalid credentials")
+	ErrInvalidSubject     = echo.NewHTTPError(http.StatusBadRequest, "Invalid subject")
+	ErrInvalidUser        = echo.NewHTTPError(http.StatusBadRequest, "Invalid user")
+
+	ErrUserAlreadyExists = echo.NewHTTPError(http.StatusConflict, "User already exists")
+	ErrUserNotFound      = echo.NewHTTPError(http.StatusNotFound, "User not found")
+)
+
+type User struct {
+	gorm.Model
+	Address     string `json:"address"`
+	Handle      string `json:"handle"`
+	FirstName   string `json:"firstName"`
+	LastInitial string `json:"lastInitial"`
+	VaultCID    string `json:"vaultCID"`
+}
+
 type Session struct {
-	ID               string `json:"id"`
+	gorm.Model
+	ID               string `json:"id" gorm:"primaryKey"`
 	BrowserName      string `json:"browserName"`
 	BrowserVersion   string `json:"browserVersion"`
 	UserArchitecture string `json:"userArchitecture"`
 	Platform         string `json:"platform"`
 	PlatformVersion  string `json:"platformVersion"`
 	DeviceModel      string `json:"deviceModel"`
-}
-
-type User struct {
-	Address   string `json:"address"`
-	Handle    string `json:"handle"`
-	FirstName string `json:"firstName"`
-	LastName  string `json:"lastName"`
-	VaultCID  string `json:"vaultCID"`
+	UserHandle       string `json:"userHandle"`
+	FirstName        string `json:"firstName"`
+	LastInitial      string `json:"lastInitial"`
+	VaultAddress     string `json:"vaultAddress"`
 }