feat(profile): role-aware nav + avatar menu + full editable profile

Navigation:
- UserMenu (avatar + role-aware dropdown: Dashboard, Admin Panel for admins,
  Profile, Sign out) replaces Sign In/Try Free when logged in (desktop + mobile).
- Real avatars in dashboard sidebar + a new admin-shell profile section.
- Shared Avatar primitive (image with initials fallback). SiteChrome excludes /admin.

Profile (data-collection surface for future AI video generation):
- SettingsProfile rebuilt: avatar upload + slogan, about, company, website,
  country, national code, birthdate, gender. No resume builder (per scope change).
- /api/profile forwards all fields; new user-scoped /api/profile/upload (avatar →
  MinIO via file-svc, sets avatar). Identity UpdateUserRequest/UserResponse widened
  (country/national/method); no DB migration (columns already exist).
- fa+en strings; verified GET/PATCH round-trip + logged-in SSR render.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

messages/en.json

@@ -12,6 +12,13 @@
     "learn": "Learn",
     "signIn": "Sign In",
     "tryForFree": "Try for Free",
+    "accountMenu": "Account menu",
+    "roleAdmin": "Admin",
+    "roleUser": "Member",
+    "menuDashboard": "Dashboard",
+    "menuAdminPanel": "Admin panel",
+    "menuProfile": "Profile & settings",
+    "menuSignOut": "Sign out",
     "openMenuAriaLabel": "Open navigation menu",
     "mobileMenuTitle": "Menu",
     "videoMakerBrowse": "Browse Templates",
@@ -521,7 +528,7 @@
     },
     "componentsDashboardSettingsSettingsProfile": {
       "title": "Profile",
-      "subtitle": "Your public name and account email.",
+      "subtitle": "Your public profile, photo and account details.",
       "displayNameLabel": "Display name",
       "displayNamePlaceholder": "Your name",
       "emailLabel": "Email",
@@ -530,7 +537,28 @@
       "saveChanges": "Save changes",
       "updateFailed": "Could not update profile.",
       "updateSuccess": "Profile updated successfully.",
-      "networkError": "Network error. Please try again."
+      "networkError": "Network error. Please try again.",
+      "changeAvatar": "Change profile picture",
+      "uploading": "Uploading image…",
+      "avatarUpdated": "Profile picture updated.",
+      "uploadFailed": "Could not upload the image.",
+      "sloganLabel": "Slogan / headline",
+      "sloganPlaceholder": "e.g. Motion designer",
+      "aboutLabel": "About me",
+      "aboutPlaceholder": "Tell us a little about yourself…",
+      "companyLabel": "Company / business",
+      "websiteLabel": "Website",
+      "countryLabel": "Country",
+      "countryPlaceholder": "United States",
+      "nationalCodeLabel": "National ID",
+      "birthDateLabel": "Date of birth",
+      "genderLabel": "Gender",
+      "genderUnset": "Not specified",
+      "genderMale": "Male",
+      "genderFemale": "Female",
+      "genderOther": "Other",
+      "genderPreferNotToSay": "Prefer not to say",
+      "dataCollectionHint": "This information is used to personalize your experience and power future AI video generation."
     },
     "componentsDashboardSettingsSettingsSecurity": {
       "title": "Security",