feat: implement recipe analysis service and data models

- Added RecipeAnalysisService to handle recipe ingredient analysis, including methods for checking ingredient availability and calculating quantities.
- Introduced new TypeScript definitions for recipe analysis results, including ingredient status and summary.
- Created corresponding Dart models for recipe analysis, including RecipeIngredientAnalysis, RecipeAnalysisSummary, and RecipeShoppingCandidate.
- Updated Flutter UI to reflect changes in ingredient availability status.
- Fixed color opacity issue in recipe image card.

backend/dist/recipes/recipes.service.js

@@ -29,6 +29,12 @@ let RecipesService = RecipesService_1 = class RecipesService {
     throwRecipeNotFound(id) {
         throw new common_1.NotFoundException(`Recipe with id ${id} not found`);
     }
+    normalizeIngredientName(value) {
+        const trimmed = value.trim();
+        if (!trimmed)
+            return trimmed;
+        return `${trimmed.charAt(0).toUpperCase()}${trimmed.slice(1)}`;
+    }
     async assertProductsActive(productIds) {
         if (productIds.length === 0)
             return;
@@ -299,7 +305,7 @@ let RecipesService = RecipesService_1 = class RecipesService {
                     ingredients: {
                         create: updateRecipeDto.ingredients.map((ingredient) => ({
                             productId: ingredient.productId ?? null,
-                            rawName: ingredient.rawName,
+                            rawName: this.normalizeIngredientName(ingredient.rawName),
                             rawLine: ingredient.rawLine ?? null,
                             quantity: ingredient.quantity ?? null,
                             unit: ingredient.unit?.trim() ? ingredient.unit : null,
@@ -443,7 +449,7 @@ let RecipesService = RecipesService_1 = class RecipesService {
                     ingredients: {
                         create: createRecipeDto.ingredients.map((ingredient) => ({
                             productId: ingredient.productId ?? null,
-                            rawName: ingredient.rawName,
+                            rawName: this.normalizeIngredientName(ingredient.rawName),
                             rawLine: ingredient.rawLine ?? null,
                             quantity: ingredient.quantity ?? null,
                             unit: ingredient.unit?.trim() ? ingredient.unit : null,