feat: add logo image and RTL support styles

- Added logo image to assets.
- Implemented RTL support styles in rtlSupport.scss for various components including breadcrumb, datatable, and tree node toggle button.

chore: configure environment files for production, staging, and development

- Created environment.prod.ts for production settings.
- Created environment.staging.ts for staging settings.
- Created environment.ts for local development settings.

feat: define custom theme preset

- Added presets.ts to define a custom theme preset using PrimeUIX with specific component styles and semantic colors.

chore: set up proxy configuration for local development

src/app/core/models/index.ts

@@ -0,0 +1,5 @@
+export * from './maybe.model';
+export * from './namedRoutes.model';
+export * from './navigation.model';
+export * from './route-utils.model';
+export * from './user.model';

src/app/core/models/maybe.model.ts

@@ -0,0 +1 @@
+export type Maybe<T> = T | null;

src/app/core/models/namedRoutes.model.ts

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+import { Route } from '@angular/router';
+
+/**
+ * Generic type for creating strongly typed named routes
+ * @template T - Union of string literals representing route names
+ * @returns Record<T, Route> - Object with route names as keys and Route objects as values
+ *
+ * @example
+ * ```typescript
+ * type AuthRouteNames = 'auth' | 'login';
+ * const authRoutes: NamedRoutes<AuthRouteNames> = {
+ *   auth: { path: 'auth', component: AuthComponent },
+ *   login: { path: 'login', component: LoginComponent }
+ * };
+ * ```
+ */
+
+export interface RouteInfo {
+  meta: {
+    title: string;
+    icon?: string;
+    pagePath?: (params: any) => string;
+  };
+}
+
+export interface NamedRouteWithInfo extends Route, RouteInfo {}
+
+export type NamedRoutes<T extends string> = Record<T, NamedRouteWithInfo>;

src/app/core/models/navigation.model.ts

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+export interface MenuItem {
+  key: string;
+  title: string;
+  icon?: string;
+  routerLink?: string;
+  children?: MenuItem[];
+  permissions?: string[];
+  roles?: string[];
+}
+
+export interface NavigationConfig {
+  role: string;
+  menuItems: MenuItem[];
+}

src/app/core/models/route-utils.model.ts

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+import { Routes } from '@angular/router';
+import { NamedRoutes } from './namedRoutes.model';
+
+/**
+ * Utility function to convert NamedRoutes to Routes array
+ * @param namedRoutes - Object containing named routes
+ * @returns Array of Route objects suitable for Angular router
+ *
+ * @example
+ * ```typescript
+ * const routes = routesToArray(studentNamedRoutes);
+ * // Returns: [Route, Route, Route, ...]
+ * ```
+ */
+export function routesToArray<T extends string>(namedRoutes: NamedRoutes<T>): Routes {
+  return Object.values(namedRoutes);
+}
+
+/**
+ * Utility function to get route path by name with type safety
+ * @param namedRoutes - Object containing named routes
+ * @param routeName - Name of the route to get path for
+ * @returns The path string for the specified route
+ *
+ * @example
+ * ```typescript
+ * const dashboardPath = getRoutePath(studentNamedRoutes, 'dashboard');
+ * // Returns: 'dashboard'
+ * ```
+ */
+export function getRoutePath<T extends string>(namedRoutes: NamedRoutes<T>, routeName: T): string {
+  return namedRoutes[routeName].path || '';
+}
+
+/**
+ * Utility function to build full route path with prefix
+ * @param prefix - Route prefix (e.g., '/student')
+ * @param namedRoutes - Object containing named routes
+ * @param routeName - Name of the route to build path for
+ * @returns Full route path
+ *
+ * @example
+ * ```typescript
+ * const fullPath = buildRoutePath('/student', studentNamedRoutes, 'dashboard');
+ * // Returns: '/student/dashboard'
+ * ```
+ */
+export function buildRoutePath<T extends string>(
+  prefix: string,
+  namedRoutes: NamedRoutes<T>,
+  routeName: T
+): string {
+  const basePath = prefix.endsWith('/') ? prefix.slice(0, -1) : prefix;
+  const routePath = getRoutePath(namedRoutes, routeName);
+  return `${basePath}/${routePath}`;
+}

src/app/core/models/service.model.ts

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+export interface IPaginatedQuery<LastSeen = string> {
+  lastSeen: LastSeen;
+  pageSize: number;
+}
+
+export interface IPaginatedResponse<T, LastSeen = string> {
+  lastSeen: LastSeen;
+  totalCount: number;
+  items: T[];
+}

src/app/core/models/severity.ts

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+export type TSeverity =
+  | 'success'
+  | 'secondary'
+  | 'info'
+  | 'warn'
+  | 'danger'
+  | 'contrast'
+  | undefined
+  | null;

src/app/core/models/store.model.ts

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+export interface defaultStoreState<T> {
+  loading: boolean;
+  error: string | null;
+  items: T;
+}

src/app/core/models/user.model.ts

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+export enum UserRole {
+  ADMIN = 'admin',
+  SCHOOL = 'school',
+  TEACHER = 'teacher',
+  STUDENTS = 'students',
+  GRADER = 'grader',
+  SUPERADMIN = 'superadmin',
+}
+
+export type TRoles = keyof typeof UserRole;
+
+export interface User {
+  fullName: string;
+  role: TRoles;
+  // id: string;
+  // email: string;
+  // firstName: string;
+  // lastName: string;
+  // permissions: Permission[];
+  // isActive: boolean;
+  // lastLogin?: Date;
+  // createdAt: Date;
+  // updatedAt: Date;
+}
+
+export interface Permission {
+  id: string;
+  name: string;
+  resource: string;
+  action: string;
+}
+
+export interface IAuthResponse {
+  // user: User;
+  token: string;
+  fullName: string;
+  mustChangePassword: boolean;
+  role: string;
+  refreshToken: string;
+  expiresIn: number;
+}
+
+export interface LoginCredentials {
+  username: string;
+  password: string;
+  captcha: string;
+}
+
+export interface IUserLoginInfo {
+  username: string;
+  password: string;
+  mobile: string;
+  email: string;
+}
+
+export interface ISignupRequestPayload {
+  firstName: string;
+  lastName: string;
+  gender: boolean;
+  mobile: string;
+  email: string;
+  username: string;
+  password: string;
+}