feat: major feature updates and cleanup

- Add Redis architecture implementation
- Update browser extension functionality
- Clean up deprecated files and documentation
- Enhance backend handlers for auth, messages, search
- Add new configuration options and settings
- Update Docker and deployment configurations

backend/handlers/update_settings.go

@@ -0,0 +1,99 @@
+package handlers
+
+import (
+	"net/http"
+
+	"github.com/gin-gonic/gin"
+	"github.com/trackeep/backend/models"
+)
+
+// UpdateSettings represents update and OAuth configuration
+type UpdateSettings struct {
+	OAuthServiceURL     string `json:"oauth_service_url"`
+	AutoUpdateCheck     bool   `json:"auto_update_check"`
+	UpdateCheckInterval string `json:"update_check_interval"`
+	PrereleaseUpdates   bool   `json:"prerelease_updates"`
+}
+
+// GetUpdateSettings handles GET /api/v1/auth/update/settings
+func GetUpdateSettings(c *gin.Context) {
+	userID := c.GetInt("user_id")
+
+	// Get settings from database
+	settings, err := models.GetUserUpdateSettings(uint(userID))
+	if err != nil {
+		c.JSON(http.StatusInternalServerError, gin.H{"error": "Failed to get settings"})
+		return
+	}
+
+	// Convert to response format
+	response := UpdateSettings{
+		OAuthServiceURL:     settings.OAuthServiceURL,
+		AutoUpdateCheck:     settings.AutoUpdateCheck,
+		UpdateCheckInterval: settings.UpdateCheckInterval,
+		PrereleaseUpdates:   settings.PrereleaseUpdates,
+	}
+
+	c.JSON(http.StatusOK, response)
+}
+
+// UpdateUpdateSettings handles PUT /api/v1/auth/update/settings
+func UpdateUpdateSettings(c *gin.Context) {
+	userID := c.GetInt("user_id")
+
+	var newSettings UpdateSettings
+	if err := c.ShouldBindJSON(&newSettings); err != nil {
+		c.JSON(http.StatusBadRequest, gin.H{"error": err.Error()})
+		return
+	}
+
+	// Update model
+	updatedSettings := &models.UserUpdateSettings{
+		OAuthServiceURL:     newSettings.OAuthServiceURL,
+		AutoUpdateCheck:     newSettings.AutoUpdateCheck,
+		UpdateCheckInterval: newSettings.UpdateCheckInterval,
+		PrereleaseUpdates:   newSettings.PrereleaseUpdates,
+	}
+
+	// Save to database
+	err := models.SaveUserUpdateSettings(uint(userID), updatedSettings)
+	if err != nil {
+		c.JSON(http.StatusInternalServerError, gin.H{"error": "Failed to save settings"})
+		return
+	}
+
+	// Return updated settings
+	GetUpdateSettings(c)
+}
+
+// GetTestUpdateSettings handles GET /api/v1/test-update-settings (for demo mode)
+func GetTestUpdateSettings(c *gin.Context) {
+	settings := getDefaultUpdateSettings()
+	c.JSON(http.StatusOK, settings)
+}
+
+// GetUpdateSettingsForAPI returns update settings for internal API use
+func GetUpdateSettingsForAPI(userID int) (UpdateSettings, error) {
+	settings, err := models.GetUserUpdateSettings(uint(userID))
+	if err != nil {
+		// Return default settings if error
+		defaultSettings := getDefaultUpdateSettings()
+		return defaultSettings, nil
+	}
+
+	return UpdateSettings{
+		OAuthServiceURL:     settings.OAuthServiceURL,
+		AutoUpdateCheck:     settings.AutoUpdateCheck,
+		UpdateCheckInterval: settings.UpdateCheckInterval,
+		PrereleaseUpdates:   settings.PrereleaseUpdates,
+	}, nil
+}
+
+func getDefaultUpdateSettings() UpdateSettings {
+	return UpdateSettings{
+		OAuthServiceURL:     getEnvWithDefault("OAUTH_SERVICE_URL", "https://oauth.tdvorak.dev"),
+		AutoUpdateCheck:     getBoolEnvWithDefault("AUTO_UPDATE_CHECK", false),
+		UpdateCheckInterval: getEnvWithDefault("UPDATE_CHECK_INTERVAL", "24h"),
+		PrereleaseUpdates:   getBoolEnvWithDefault("PRERELEASE_UPDATES", false),
+	}
+}