refactor: rework file structure (#325)

* wip: add middlewares

* refactor: use context fom middleware in handlers

* refactor: use controller approach in handlers

* refactor: move oauth providers into services (non-working)

* feat: create oauth broker service

* refactor: use a boostrap service to bootstrap the app

* refactor: split utils into smaller files

* refactor: use more clear name for frontend assets

* feat: allow customizability of resources dir

* fix: fix typo in ui middleware

* fix: validate resource file paths in ui middleware

* refactor: move resource handling to a controller

* feat: add some logging

* fix: configure middlewares before groups

* fix: use correct api path in login mutation

* fix: coderabbit suggestions

* fix: further coderabbit suggestions

internal/controller/health_controller.go

@@ -0,0 +1,25 @@
+package controller
+
+import "github.com/gin-gonic/gin"
+
+type HealthController struct {
+	Router *gin.RouterGroup
+}
+
+func NewHealthController(router *gin.RouterGroup) *HealthController {
+	return &HealthController{
+		Router: router,
+	}
+}
+
+func (controller *HealthController) SetupRoutes() {
+	controller.Router.GET("/health", controller.healthHandler)
+	controller.Router.HEAD("/health", controller.healthHandler)
+}
+
+func (controller *HealthController) healthHandler(c *gin.Context) {
+	c.JSON(200, gin.H{
+		"status":  "ok",
+		"message": "Healthy",
+	})
+}