Backlog/v12 branding tenants

backend/modules/appconfig/usecase/branding.go

@@ -51,10 +51,11 @@ func (s *brandingService) isWhiteLabelEntitled(_ context.Context) bool {
 }
 
 // read loads the stored branding (JSON in the `branding` config row), falling
-// back to defaults when unset or unparseable.
+// back to defaults when unset or unparseable. Uses GetOwn so a tenant without
+// its own row gets defaults instead of inheriting the master tenant's brand.
 func (s *brandingService) read(ctx context.Context) (dto.BrandingResponse, error) {
 	resp := dto.BrandingResponse{ProductName: defaultProductName}
-	row, err := s.repo.GetByKey(ctx, brandingConfigKey)
+	row, err := s.repo.GetOwn(ctx, brandingConfigKey)
 	if err != nil {
 		return resp, err
 	}

frontend/src/features/auth/services/auth.context.tsx

@@ -209,9 +209,9 @@ export function AuthProvider({ children }: { children: ReactNode }) {
   // Wire the api-client logout fallback (fired when refresh fails).
   useEffect(() => {
     setLogoutHandler(() => {
-      setUser(null)
+      reset()
     })
-  }, [])
+  }, [reset])
 
   // Apply the user's saved language preference once known (lang_key → i18n).
   useEffect(() => {

frontend/src/features/branding/services/branding.context.tsx

@@ -1,6 +1,6 @@
 import { createContext, useCallback, useContext, useEffect, useMemo, useState, type ReactNode } from 'react'
 import { brandingHttpService } from './branding-http.service'
-import { getSupportTenantId } from '@/shared/lib/current-tenant'
+import { getSupportTenantId, useSupportTenant } from '@/shared/lib/current-tenant'
 import type { BrandingPublic } from '../types/branding.types'
 
 interface BrandingContextValue {
@@ -43,6 +43,7 @@ function applyBranding(b: BrandingPublic | null) {
 
 export function BrandingProvider({ children }: { children: ReactNode }) {
   const [branding, setBranding] = useState<BrandingPublic | null>(null)
+  const supportTenantId = useSupportTenant()?.id ?? null
 
   const refresh = useCallback(async () => {
     try {
@@ -66,7 +67,7 @@ export function BrandingProvider({ children }: { children: ReactNode }) {
 
   useEffect(() => {
     void refresh()
-  }, [refresh])
+  }, [refresh, supportTenantId])
 
   const value = useMemo(() => ({ branding, refresh }), [branding, refresh])
   return <BrandingContext.Provider value={value}>{children}</BrandingContext.Provider>