feat: refactor API paths for authentication, inventory, and recipes; add contract tests for repositories

flutter/lib/features/recipes/data/recipe_repository.dart

@@ -1,5 +1,6 @@
 import '../../../core/api/api_client.dart';
 import '../../../core/api/api_exception.dart';
+import '../../../core/api/api_paths.dart';
 import '../domain/parsed_recipe.dart';
 import '../domain/recipe.dart';
 
@@ -10,7 +11,7 @@ class RecipeRepository {
 
   Future<List<Recipe>> fetchRecipes({String? token}) async {
     try {
-      final data = await _api.getJson('/recipes', token: token);
+      final data = await _api.getJson(RecipeApiPaths.list, token: token);
       if (data is! List) {
         throw const ApiException(
             type: ApiErrorType.unknown, message: 'Ogiltigt svar fran servern.');
@@ -28,7 +29,7 @@ class RecipeRepository {
 
   Future<Recipe> fetchRecipeDetail(int id, {String? token}) async {
     try {
-      final data = await _api.getJson('/recipes/$id', token: token);
+      final data = await _api.getJson(RecipeApiPaths.detail(id), token: token);
       if (data is! Map<String, dynamic>) {
         throw const ApiException(
             type: ApiErrorType.unknown, message: 'Ogiltigt svar fran servern.');
@@ -45,8 +46,8 @@ class RecipeRepository {
   Future<Recipe> createRecipe(Map<String, dynamic> body,
       {String? token}) async {
     try {
-      final data =
-          await _api.postJson('/recipes', body: body, token: token);
+        final data =
+          await _api.postJson(RecipeApiPaths.list, body: body, token: token);
       if (data is! Map<String, dynamic>) {
         throw const ApiException(
             type: ApiErrorType.unknown, message: 'Ogiltigt svar fran servern.');
@@ -63,8 +64,11 @@ class RecipeRepository {
   Future<Recipe> updateRecipe(int id, Map<String, dynamic> body,
       {String? token}) async {
     try {
-      final data =
-          await _api.patchJson('/recipes/$id', body: body, token: token);
+      final data = await _api.patchJson(
+        RecipeApiPaths.update(id),
+        body: body,
+        token: token,
+      );
       if (data is! Map<String, dynamic>) {
         throw const ApiException(
             type: ApiErrorType.unknown, message: 'Ogiltigt svar fran servern.');
@@ -80,7 +84,7 @@ class RecipeRepository {
 
   Future<void> deleteRecipe(int id, {String? token}) async {
     try {
-      await _api.deleteJson('/recipes/$id', token: token);
+      await _api.deleteJson(RecipeApiPaths.remove(id), token: token);
     } on ApiException {
       rethrow;
     } catch (_) {
@@ -93,7 +97,7 @@ class RecipeRepository {
       {String? token}) async {
     try {
       final data = await _api.postJson(
-        '/recipes/parse-markdown',
+        RecipeApiPaths.parseMarkdown,
         body: {'markdown': markdown},
         token: token,
       );