feat: implement programmatic SEO for solutions pages

- Add 10 oil-for-concern solution pages with localized slugs
- Support 4 languages: sr, en, de, fr with proper canonical URLs
- Add solutions hub, by-concern, and by-oil directory pages
- Filter bundle products from solutions pages
- Add hideLangSwitcher prop to Header component
- Update translations for all languages
- Fix canonical URLs to include locale prefix

src/i18n/messages/de.json

@@ -533,8 +533,10 @@
       "subtitle": "Erkunden Sie unsere umfassende Kollektion natürlicher Öl-Lösungen, organisiert nach Hautproblem, um Ihnen zu helfen, genau das zu finden, was Sie brauchen.",
       "stats": {
         "availableConcerns": "{count} Hautprobleme abgedeckt",
-        "totalSolutions": "{count} fachkundig kuratierte Lösungen"
+        "totalSolutions": "{count} fachkundig kuratierte Lösungen",
+        "solutionsAvailable": "{count} Lösungen verfügbar"
       },
+      "viewSolution": "Lösung ansehen",
       "noResults": "Keine Probleme gefunden. Bitte schauen Sie später für neue Lösungen vorbei."
     },
     "ByOil": {
@@ -546,6 +548,12 @@
         "availableOils": "{count} natürliche Öle",
         "totalSolutions": "{count} fachkundig kuratierte Lösungen"
       },
+      "oilCard": {
+        "solutionLabel": "Lösung verfügbar",
+        "solutionsLabel": "Lösungen verfügbar",
+        "bestFor": "Am besten für:",
+        "exploreSolutions": "Öl-Lösungen erkunden"
+      },
       "noResults": "Keine Öle gefunden. Bitte schauen Sie später für neue Lösungen vorbei."
     },
     "completeYourRoutine": "Vervollständigen Sie Ihre Routine",

src/i18n/messages/en.json

@@ -588,8 +588,10 @@
       "subtitle": "Explore our comprehensive collection of natural oil solutions, organized by skin concern to help you find exactly what you need.",
       "stats": {
         "availableConcerns": "{count} skin concerns covered",
-        "totalSolutions": "{count} expert-curated solutions"
+        "totalSolutions": "{count} expert-curated solutions",
+        "solutionsAvailable": "{count} solutions available"
       },
+      "viewSolution": "View Solution",
       "noResults": "No concerns found. Please check back later for new solutions."
     },
     "ByOil": {
@@ -601,6 +603,12 @@
         "availableOils": "{count} natural oils",
         "totalSolutions": "{count} expert-curated solutions"
       },
+      "oilCard": {
+        "solutionLabel": "solution available",
+        "solutionsLabel": "solutions available",
+        "bestFor": "Best for:",
+        "exploreSolutions": "Explore Oil Solutions"
+      },
       "noResults": "No oils found. Please check back later for new solutions."
     },
     "completeYourRoutine": "Complete Your Routine",

src/i18n/messages/fr.json

@@ -533,8 +533,10 @@
       "subtitle": "Explorez notre collection complète de solutions d'huiles naturelles, organisées par problème de peau pour vous aider à trouver exactement ce dont vous avez besoin.",
       "stats": {
         "availableConcerns": "{count} problèmes de peau couverts",
-        "totalSolutions": "{count} solutions sélectionnées par des experts"
+        "totalSolutions": "{count} solutions sélectionnées par des experts",
+        "solutionsAvailable": "{count} solutions disponibles"
       },
+      "viewSolution": "Voir la solution",
       "noResults": "Aucun problème trouvé. Veuillez vérifier plus tard pour de nouvelles solutions."
     },
     "ByOil": {
@@ -546,6 +548,12 @@
         "availableOils": "{count} huiles naturelles",
         "totalSolutions": "{count} solutions sélectionnées par des experts"
       },
+      "oilCard": {
+        "solutionLabel": "solution disponible",
+        "solutionsLabel": "solutions disponibles",
+        "bestFor": "Idéal pour:",
+        "exploreSolutions": "Explorer les solutions d'huiles"
+      },
       "noResults": "Aucune huile trouvée. Veuillez vérifier plus tard pour de nouvelles solutions."
     },
     "completeYourRoutine": "Complétez votre routine",

src/i18n/messages/sr.json

@@ -587,8 +587,10 @@
       "subtitle": "Istražite našu sveobuhvatnu kolekciju prirodnih uljanih rešenja, organizovanih po problemima kože da vam pomognemo da pronađete tačno ono što vam treba.",
       "stats": {
         "availableConcerns": "{count} problema kože pokriveno",
-        "totalSolutions": "{count} stručno odabranih rešenja"
+        "totalSolutions": "{count} stručno odabranih rešenja",
+        "solutionsAvailable": "{count} rešenja dostupna"
       },
+      "viewSolution": "Pogledaj rešenje",
       "noResults": "Nema pronađenih problema. Proverite ponovo kasnije za nova rešenja."
     },
     "ByOil": {
@@ -600,6 +602,12 @@
         "availableOils": "{count} prirodnih ulja",
         "totalSolutions": "{count} stručno odabranih rešenja"
       },
+      "oilCard": {
+        "solutionLabel": "rešenje dostupno",
+        "solutionsLabel": "rešenja dostupna",
+        "bestFor": "Najbolje za:",
+        "exploreSolutions": "Istraži uljana rešenja"
+      },
       "noResults": "Nema pronađenih ulja. Proverite ponovo kasnije za nova rešenja."
     },
     "completeYourRoutine": "Dovršite svoju rutinu",