Add configuration files and update project documentation

- Introduced .editorconfig for consistent coding styles across the project.
- Added .golangci.yml for Go linting configuration.
- Updated AGENTS.md to clarify project structure and components.
- Enhanced CONTRIBUTING.md with Makefile usage for common tasks.
- Updated Dockerfiles to use Go 1.24 and improved build instructions.
- Refined README.md and deployment documentation for clarity.
- Added testing documentation in testing.md for backend and frontend tests.
- Introduced Makefile for streamlined development commands and tasks.

frontend-nuxt/lib/UniqueList.ts

@@ -1,50 +1,52 @@
-/**
- * Elements should have unique field "id"
- */
 export interface Identifiable {
   id: number | string
 }
 
-export class UniqueList<T extends Identifiable> {
-  elements: Record<string, T> = {}
-
-  update(
-    dataList: T[],
-    addCallback?: (it: T) => void,
-    removeCallback?: (it: T) => void,
-    updateCallback?: (oldElement: T, newElement: T) => void
-  ): void {
-    const elementsToAdd = dataList.filter((it) => this.elements[String(it.id)] === undefined)
-    const elementsToRemove: T[] = []
-    for (const id of Object.keys(this.elements)) {
-      if (dataList.find((up) => String(up.id) === id) === undefined) {
-        const el = this.elements[id]
-        if (el) elementsToRemove.push(el)
-      }
-    }
-    if (removeCallback) {
-      elementsToRemove.forEach((it) => removeCallback(it))
-    }
-    if (updateCallback) {
-      dataList.forEach((newElement) => {
-        const oldElement = this.elements[String(newElement.id)]
-        if (oldElement) {
-          updateCallback(oldElement, newElement)
-        }
-      })
-    }
-    if (addCallback) {
-      elementsToAdd.forEach((it) => addCallback(it))
-    }
-    elementsToRemove.forEach((it) => delete this.elements[String(it.id)])
-    elementsToAdd.forEach((it) => (this.elements[String(it.id)] = it))
-  }
-
-  getElements(): T[] {
-    return Object.values(this.elements)
-  }
-
-  byId(id: number | string): T | undefined {
-    return this.elements[String(id)]
-  }
+export interface UniqueList<T extends Identifiable> {
+  elements: Record<string, T>
+}
+
+export function createUniqueList<T extends Identifiable>(): UniqueList<T> {
+  return { elements: {} }
+}
+
+export function uniqueListUpdate<T extends Identifiable>(
+  list: UniqueList<T>,
+  dataList: T[],
+  addCallback?: (it: T) => void,
+  removeCallback?: (it: T) => void,
+  updateCallback?: (oldElement: T, newElement: T) => void
+): void {
+  const elementsToAdd = dataList.filter((it) => list.elements[String(it.id)] === undefined)
+  const elementsToRemove: T[] = []
+  for (const id of Object.keys(list.elements)) {
+    if (dataList.find((up) => String(up.id) === id) === undefined) {
+      const el = list.elements[id]
+      if (el) elementsToRemove.push(el)
+    }
+  }
+  if (removeCallback) {
+    elementsToRemove.forEach((it) => removeCallback(it))
+  }
+  if (updateCallback) {
+    dataList.forEach((newElement) => {
+      const oldElement = list.elements[String(newElement.id)]
+      if (oldElement) {
+        updateCallback(oldElement, newElement)
+      }
+    })
+  }
+  if (addCallback) {
+    elementsToAdd.forEach((it) => addCallback(it))
+  }
+  elementsToRemove.forEach((it) => delete list.elements[String(it.id)])
+  elementsToAdd.forEach((it) => (list.elements[String(it.id)] = it))
+}
+
+export function uniqueListGetElements<T extends Identifiable>(list: UniqueList<T>): T[] {
+  return Object.values(list.elements)
+}
+
+export function uniqueListById<T extends Identifiable>(list: UniqueList<T>, id: number | string): T | undefined {
+  return list.elements[String(id)]
 }