chore: bulk commit of pre-existing changes

Includes:
- Admin dashboard layout and page updates
- API account auth module (routes, schemas, service)
- Dashboard sign-up form extraction, middleware refactor
- Marketplace proxy and middleware updates
- CORS origins expansion for dev environment
- Seed email domain correction (.com → .ma)
- Docs: create-account guide, fleet page, signup plan
- Various UI component and layout refinements

apps/api/src/modules/auth/auth.account.schemas.ts

@@ -0,0 +1,59 @@
+import { z } from 'zod'
+
+/**
+ * Minimal signup schema — only asks for what's needed to create an identity.
+ * See progressive-signup-plan.md Section 3.
+ */
+export const accountStartSchema = z.object({
+  email: z.string().email(),
+  password: z.string().min(8).max(128),
+  preferredLanguage: z.enum(['en', 'fr', 'ar']).default('en'),
+})
+
+export const companyProfileSchema = z.object({
+  firstName: z.string().min(1).max(80).optional(),
+  lastName: z.string().min(1).max(80).optional(),
+  firstNameAr: z.string().max(80).optional(),
+  lastNameAr: z.string().max(80).optional(),
+  companyName: z.string().min(2).max(120).optional(),
+  companyNameAr: z.string().max(120).optional(),
+  phone: z.string().min(1).max(80).optional(),
+  companyEmail: z.string().email().optional(),
+  streetAddress: z.string().min(1).max(200).optional(),
+  streetAddressAr: z.string().max(200).optional(),
+  city: z.string().min(1).max(120).optional(),
+  cityAr: z.string().max(120).optional(),
+  country: z.string().min(1).max(120).optional(),
+  countryAr: z.string().max(120).optional(),
+  zipCode: z.string().min(1).max(40).optional(),
+  fax: z.string().max(80).optional(),
+  yearsActive: z.string().max(80).optional(),
+})
+
+export const legalIdentitySchema = z.object({
+  legalName: z.string().min(2).max(160),
+  legalForm: z.string().min(1).max(80),
+  registrationNumber: z.string().min(1).max(120),
+  iceNumber: z.string().min(1).max(120),
+  taxId: z.string().min(1).max(120),
+  operatingLicenseNumber: z.string().min(1).max(120),
+  operatingLicenseIssuedAt: z.string().min(1).max(40),
+  operatingLicenseIssuedBy: z.string().min(1).max(160),
+})
+
+export const paymentSetupSchema = z.object({
+  paymentProvider: z.enum(['AMANPAY', 'PAYPAL']),
+  responsibleName: z.string().min(1).max(160),
+  responsibleRole: z.string().min(1).max(120),
+  responsibleIdentityNumber: z.string().min(1).max(120),
+  responsibleQualification: z.string().max(200).optional(),
+  responsiblePhone: z.string().min(1).max(80),
+  responsibleEmail: z.string().email(),
+  representativeName: z.string().max(160).optional(),
+  representativeTitle: z.string().max(120).optional(),
+})
+
+export const planSchema = z.object({
+  plan: z.enum(['STARTER', 'GROWTH', 'PRO']),
+  billingPeriod: z.enum(['MONTHLY', 'ANNUAL']),
+})