feat: complete dynamic menu system across all frontends

- Add "Merchant Frontend" tab to admin menu-config page
- Merchant render endpoint now respects AdminMenuConfig visibility
  via get_merchant_primary_platform_id() platform resolution
- New store menu render endpoint (GET /store/core/menu/render/store)
  with platform-scoped visibility and store_code interpolation
- Store sidebar migrated from hardcoded Jinja2 macros to dynamic
  Alpine.js x-for rendering with loading skeleton and fallback
- Store init-alpine.js: add loadMenuConfig(), expandSectionForCurrentPage()
- Include store page route fixes, login template updates, and tests

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

app/modules/marketplace/routes/pages/store.py

@@ -4,7 +4,6 @@ Marketplace Store Page Routes (HTML rendering).
 
 Store pages for marketplace management:
 - Onboarding wizard
-- Dashboard
 - Marketplace imports
 - Letzshop integration
 """
@@ -16,7 +15,9 @@ from sqlalchemy.orm import Session
 from app.api.deps import get_current_store_from_cookie_or_header, get_db
 from app.modules.core.utils.page_context import get_store_context
 from app.modules.marketplace.services.onboarding_service import OnboardingService
+from app.modules.service import module_service
 from app.modules.tenancy.models import User
+from app.modules.tenancy.models.store_platform import StorePlatform
 from app.templates_config import templates
 
 router = APIRouter()
@@ -39,14 +40,27 @@ async def store_onboarding_page(
     """
     Render store onboarding wizard.
 
-    Mandatory 4-step wizard that must be completed before accessing dashboard:
+    4-step wizard for marketplace setup:
     1. Merchant Profile Setup
     2. Letzshop API Configuration
     3. Product & Order Import Configuration
     4. Order Sync (historical import)
 
-    If onboarding is already completed, redirects to dashboard.
+    If marketplace module is not enabled for this store's platform,
+    redirects to dashboard. If onboarding is already completed,
+    redirects to dashboard.
     """
+    sp = (
+        db.query(StorePlatform)
+        .filter(StorePlatform.store_id == current_user.token_store_id)
+        .first()
+    )
+    if not sp or not module_service.is_module_enabled(db, sp.platform_id, "marketplace"):
+        return RedirectResponse(
+            url=f"/store/{store_code}/dashboard",
+            status_code=302,
+        )
+
     onboarding_service = OnboardingService(db)
     if onboarding_service.is_completed(current_user.token_store_id):
         return RedirectResponse(
@@ -60,44 +74,6 @@ async def store_onboarding_page(
     )
 
 
-# ============================================================================
-# STORE DASHBOARD
-# ============================================================================
-
-
-@router.get(
-    "/{store_code}/dashboard", response_class=HTMLResponse, include_in_schema=False
-)
-async def store_dashboard_page(
-    request: Request,
-    store_code: str = Path(..., description="Store code"),
-    current_user: User = Depends(get_current_store_from_cookie_or_header),
-    db: Session = Depends(get_db),
-):
-    """
-    Render store dashboard.
-
-    Redirects to onboarding if not completed.
-
-    JavaScript will:
-    - Load store info via API
-    - Load dashboard stats via API
-    - Load recent orders via API
-    - Handle all interactivity
-    """
-    onboarding_service = OnboardingService(db)
-    if not onboarding_service.is_completed(current_user.token_store_id):
-        return RedirectResponse(
-            url=f"/store/{store_code}/onboarding",
-            status_code=302,
-        )
-
-    return templates.TemplateResponse(
-        "core/store/dashboard.html",
-        get_store_context(request, db, current_user, store_code),
-    )
-
-
 # ============================================================================
 # MARKETPLACE IMPORTS
 # ============================================================================
@@ -115,7 +91,15 @@ async def store_marketplace_page(
     """
     Render marketplace import page.
     JavaScript loads import jobs and products via API.
+    Redirects to onboarding if not completed.
     """
+    onboarding_service = OnboardingService(db)
+    if not onboarding_service.is_completed(current_user.token_store_id):
+        return RedirectResponse(
+            url=f"/store/{store_code}/onboarding",
+            status_code=302,
+        )
+
     return templates.TemplateResponse(
         "marketplace/store/marketplace.html",
         get_store_context(request, db, current_user, store_code),
@@ -139,7 +123,15 @@ async def store_letzshop_page(
     """
     Render Letzshop integration page.
     JavaScript loads orders, credentials status, and handles fulfillment operations.
+    Redirects to onboarding if not completed.
     """
+    onboarding_service = OnboardingService(db)
+    if not onboarding_service.is_completed(current_user.token_store_id):
+        return RedirectResponse(
+            url=f"/store/{store_code}/onboarding",
+            status_code=302,
+        )
+
     return templates.TemplateResponse(
         "marketplace/store/letzshop.html",
         get_store_context(request, db, current_user, store_code),