Fix re-import from URL creating orphan recipe

The 'Re-import from URL' button called importRecipeFromUrl which always
created a new DB record, then updated the original recipe separately —
leaving an orphaned recipe behind.

Fix: add dry_run flag to POST /recipes/import. When true, the backend
parses the URL and returns the recipe data (id=0) without persisting to
the DB. The re-import path now passes dry_run=true so no orphan is
created.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

Author: MathieuMoalic

backend/src/routes/parse_recipe.rs

@@ -25,6 +25,10 @@ pub struct ImportFromUrlReq {
     /// Optional model override (e.g., "deepseek/deepseek-chat-v3.1")
     #[serde(default)]
     pub model: Option<String>,
+    /// When true, parse the URL but do NOT persist to the database.
+    /// Returns a Recipe with id=0. Use this for re-import (updating an existing recipe).
+    #[serde(default)]
+    pub dry_run: bool,
 }
 
 /// # Errors
@@ -110,6 +114,28 @@ pub async fn import_from_url(
         instructions: norm.instructions,
     };
 
+    if req.dry_run {
+        // Caller wants the parsed data but will manage persistence themselves.
+        // Return a transient Recipe (id=0) without writing to the database.
+        let recipe = Recipe {
+            id: 0,
+            title: payload.title,
+            source: payload.source,
+            r#yield: payload.r#yield,
+            notes: payload.notes,
+            created_at: String::new(),
+            updated_at: String::new(),
+            ingredients: payload.ingredients,
+            instructions: payload.instructions,
+            image_path_small: None,
+            image_path_full: None,
+            macros: None,
+            share_token: None,
+            prep_reminders: None,
+        };
+        return Ok(Json(recipe));
+    }
+
     let created = recipes::create(State(state.clone()), Json(payload)).await?;
     let recipe_id = created.0.id;
 

flutter/lib/src/api.dart

@@ -601,14 +601,15 @@ Future<List<Ingredient>> reparseIngredients(int id) async {
 
 
 
-Future<Recipe> importRecipeFromUrl({required String url, String? model}) async {
+Future<Recipe> importRecipeFromUrl({required String url, String? model, bool dryRun = false}) async {
   final uri = Uri.parse('$baseUrl/recipes/import');
   final resp = await http.post(
     uri,
     headers: _headers(const {'Content-Type': 'application/json'}),
     body: jsonEncode({
       'url': url,
       if (model != null && model.isNotEmpty) 'model': model,
+      if (dryRun) 'dry_run': true,
     }),
   );
 

flutter/lib/src/views/recipe_detail_page.dart

@@ -105,7 +105,7 @@ class _RecipeDetailPageState extends State<RecipeDetailPage> {
     );
 
     try {
-      final imported = await api.importRecipeFromUrl(url: r.source);
+      final imported = await api.importRecipeFromUrl(url: r.source, dryRun: true);
       await api.updateRecipe(
         id: r.id,
         title: imported.title,