feat: add product management features and integrate role selection

- Added PRODUCTS_ROUTES to app routing.
- Removed roles.const.ts and related references to central-auth-roles.
- Updated login component to remove role selection logic.
- Integrated ToastService for success notifications in customer, inventory, product brand, product category, supplier, and user forms.
- Implemented product and category selection fields in product form.
- Created reusable select components for product brands and categories.
- Enhanced user form with password validation and role selection.
- Established roles service for fetching roles from the API.

src/app/modules/auth/pages/login/login.component.html

@@ -1,15 +1,4 @@
 <form [formGroup]="loginForm" class="w-full flex flex-col gap-4" (ngSubmit)="submit()">
-  @if (!defaultRole) {
-    <div class="flex items-center gap-4 justify-center mb-10">
-      @for (role of centralAuthRoles; track role.key) {
-        <div class="flex items-center gap-1">
-          <p-radiobutton [inputId]="role.key" name="role" [value]="role.key" formControlName="role" size="small" />
-          <uikit-label [name]="role.key" class="cursor-pointer">{{ role.title }}</uikit-label>
-        </div>
-      }
-    </div>
-  }
-
   <uikit-field name="username" pSize="large" [control]="loginForm.controls.username" label="نام کاربری">
     <input
       pInputText

src/app/modules/auth/pages/login/login.component.ts

@@ -16,7 +16,7 @@ import { Password } from 'primeng/password';
 import { ProgressSpinnerModule } from 'primeng/progressspinner';
 import { RadioButtonModule } from 'primeng/radiobutton';
 import { CaptchaService } from 'src/app/core/services/captcha.service';
-import { CENTRAL_AUTH_ROLES } from '../../constants/central-auth-roles.const';
+// import { CENTRAL_AUTH_ROLES } from '../../constants/central-auth-roles.const';
 
 @Component({
   selector: 'app-login',
@@ -56,14 +56,14 @@ export class LoginComponent {
   readonly isCaptchaExpired = this.captchaService.captchaIsExpired;
   readonly isCaptchaLoading = this.captchaService.loading;
   readonly captchaImageSrc = this.captchaService.captchaImageSrc;
-  readonly centralAuthRoles = CENTRAL_AUTH_ROLES;
+  // readonly centralAuthRoles = CENTRAL_AUTH_ROLES;
 
   readonly loginForm = this.fb.group({
     username: ['', [Validators.required]],
     password: ['', [Validators.required]],
     rememberMe: [false],
     captcha: ['', [Validators.required]],
-    role: [this.defaultRole || this.centralAuthRoles[0].key, [Validators.required]],
+    role: [this.defaultRole, [Validators.required]],
   });
 
   selectedRole = signal<TRoles>('SCHOOL');