fix(recipes): build deploy against .env_prod; harden image save

Recipe image upload failed in prod with ENOENT writing the full image.
Root cause: the deploy built against the dev .env, whose relative
IMAGE_DIR="./imgs/" resolves under the service's dist/ working dir
instead of the real served image directory — and `$env/static/private`
is inlined at build time, so dev values shipped to prod.

- deploy.sh: source .env_prod (overridable via PROD_ENV) into the env
  before `pnpm build`, so prod values win over .env for the whole build
  lifecycle; abort if it's missing rather than ship a dev-env build.
- .gitignore: ignore .env_* so .env_prod (prod secrets) isn't committed
  (the existing .env.* dot pattern didn't match the underscore form).
- imageProcessing: mkdir -p the full/thumb dirs before writing. The
  WebP passthrough writes the full image with fs.writeFile, which (unlike
  sharp's toFile) does not create parent dirs.
- recipeFormHelpers: add serializableFormValues() and use it in the add/
  edit actions' fail() returns. Returning raw formData (now containing the
  recipe_image File) crashed the action response with a non-POJO devalue
  error, masking the real failure with an opaque 500.

.gitignore

@@ -7,6 +7,7 @@ node_modules
 /package
 .env
 .env.*
+.env_*
 !.env.example
 vite.config.js.timestamp-*
 vite.config.ts.timestamp-*

package.json

@@ -1,6 +1,6 @@
 {
 	"name": "homepage",
-	"version": "1.95.1",
+	"version": "1.95.2",
 	"private": true,
 	"type": "module",
 	"scripts": {

scripts/deploy.sh

@@ -51,7 +51,25 @@ echo "   node $local_node (match)"
 echo ":: Installing deps (frozen lockfile)"
 pnpm install --frozen-lockfile
 
-echo ":: Building"
+# Build against production env, NOT the dev .env. SvelteKit's
+# `$env/static/private` (IMAGE_DIR, DB creds, …) is inlined at BUILD time, so a
+# build that picks up the dev .env ships dev values to prod — e.g. the relative
+# IMAGE_DIR="./imgs/" that resolves under the service's dist/ cwd instead of the
+# real served image dir. We export .env_prod into the environment; real env vars
+# take precedence over .env files in Vite/SvelteKit's env loading, so this wins
+# for the whole `pnpm build` lifecycle (prebuild vite-node scripts + build).
+PROD_ENV="${PROD_ENV:-.env_prod}"
+if [[ ! -f "$PROD_ENV" ]]; then
+    echo "!! $PROD_ENV not found in $(pwd) — refusing to build with the dev .env."
+    echo "   Create $PROD_ENV with production values (IMAGE_DIR must be an"
+    echo "   ABSOLUTE path to the served recipe-image dir, DB creds, etc.)."
+    exit 1
+fi
+echo ":: Building (env from $PROD_ENV)"
+set -a
+# shellcheck source=/dev/null
+source "$PROD_ENV"
+set +a
 pnpm build
 
 if [[ ! -d build ]]; then

src/routes/[recipeLang=recipeLang]/add/+page.server.ts

@@ -7,7 +7,8 @@ import { processAndSaveRecipeImage } from '$utils/imageProcessing';
 import {
 	extractRecipeFromFormData,
 	validateRecipeData,
-	serializeRecipeForDatabase
+	serializeRecipeForDatabase,
+	serializableFormValues
 } from '$utils/recipeFormHelpers';
 
 export const load: PageServerLoad = async ({locals, params}) => {
@@ -51,7 +52,7 @@ export const actions = {
 				return fail(400, {
 					error: validationErrors.join(', '),
 					errors: validationErrors,
-					values: Object.fromEntries(formData)
+					values: serializableFormValues(formData)
 				});
 			}
 
@@ -87,7 +88,7 @@ export const actions = {
 					return fail(400, {
 						error: `Failed to process image: ${message}`,
 						errors: ['Image processing failed'],
-						values: Object.fromEntries(formData)
+						values: serializableFormValues(formData)
 					});
 				}
 			} else {
@@ -127,7 +128,7 @@ export const actions = {
 					return fail(400, {
 						error: `A recipe with the short name "${recipeData.short_name}" already exists. Please choose a different short name.`,
 						errors: ['Duplicate short_name'],
-						values: Object.fromEntries(formData)
+						values: serializableFormValues(formData)
 					});
 				}
 
@@ -135,7 +136,7 @@ export const actions = {
 				return fail(500, {
 					error: `Failed to create recipe: ${dbMessage || 'Unknown database error'}`,
 					errors: [dbMessage],
-					values: Object.fromEntries(formData)
+					values: serializableFormValues(formData)
 				});
 			}
 		} catch (error: unknown) {

src/routes/[recipeLang=recipeLang]/edit/[name]/+page.server.ts

@@ -13,7 +13,8 @@ import {
 	extractRecipeFromFormData,
 	validateRecipeData,
 	serializeRecipeForDatabase,
-	detectChangedFields
+	detectChangedFields,
+	serializableFormValues
 } from '$utils/recipeFormHelpers';
 
 /**
@@ -98,7 +99,7 @@ export const actions = {
 				return fail(400, {
 					error: 'Original short name is required for edit',
 					errors: ['Missing original_short_name'],
-					values: Object.fromEntries(formData)
+					values: serializableFormValues(formData)
 				});
 			}
 
@@ -108,7 +109,7 @@ export const actions = {
 				return fail(400, {
 					error: validationErrors.join(', '),
 					errors: validationErrors,
-					values: Object.fromEntries(formData)
+					values: serializableFormValues(formData)
 				});
 			}
 
@@ -143,7 +144,7 @@ export const actions = {
 					return fail(400, {
 						error: `Failed to process image: ${message}`,
 						errors: ['Image processing failed'],
-						values: Object.fromEntries(formData)
+						values: serializableFormValues(formData)
 					});
 				}
 			} else if (keepExistingImage && existingImagePath) {
@@ -206,7 +207,7 @@ export const actions = {
 					return fail(404, {
 						error: `Recipe with short name "${originalShortName}" not found`,
 						errors: ['Recipe not found'],
-						values: Object.fromEntries(formData)
+						values: serializableFormValues(formData)
 					});
 				}
 
@@ -263,7 +264,7 @@ export const actions = {
 					return fail(400, {
 						error: `A recipe with the short name "${recipeData.short_name}" already exists. Please choose a different short name.`,
 						errors: ['Duplicate short_name'],
-						values: Object.fromEntries(formData)
+						values: serializableFormValues(formData)
 					});
 				}
 
@@ -271,7 +272,7 @@ export const actions = {
 				return fail(500, {
 					error: `Failed to update recipe: ${dbMessage || 'Unknown database error'}`,
 					errors: [dbMessage],
-					values: Object.fromEntries(formData)
+					values: serializableFormValues(formData)
 				});
 			}
 		} catch (error: unknown) {

src/utils/imageProcessing.ts

@@ -1,5 +1,5 @@
 import path from 'path';
-import { writeFile } from 'fs/promises';
+import { writeFile, mkdir } from 'fs/promises';
 import sharp from 'sharp';
 import { generateImageHashFromBuffer, getHashedFilename } from '$utils/imageHash';
 import { validateImageFile } from '$utils/imageValidation';
@@ -138,8 +138,15 @@ export async function processAndSaveRecipeImage(
 	// the size the user saw in the editor — re-encoding through sharp would silently
 	// re-compress and discard their quality/size choice.
 	// Fallback (non-webp upload, e.g. editor bypassed): re-encode to WebP q90 as before.
-	const fullHashedPath = path.join(imageDir, 'rezepte', 'full', hashedFilename);
-	const fullUnhashedPath = path.join(imageDir, 'rezepte', 'full', unhashedFilename);
+	const fullDir = path.join(imageDir, 'rezepte', 'full');
+	const thumbDir = path.join(imageDir, 'rezepte', 'thumb');
+	// fs.writeFile (unlike sharp's toFile) does not create parent dirs, so ensure
+	// both target directories exist before writing.
+	await mkdir(fullDir, { recursive: true });
+	await mkdir(thumbDir, { recursive: true });
+
+	const fullHashedPath = path.join(fullDir, hashedFilename);
+	const fullUnhashedPath = path.join(fullDir, unhashedFilename);
 
 	let fullBuffer: Buffer;
 	if (file.type === 'image/webp') {
@@ -165,8 +172,8 @@ export async function processAndSaveRecipeImage(
 		.toBuffer();
 	console.log('[ImageProcessing] Thumbnail buffer created, size:', thumbBuffer.length, 'bytes');
 
-	const thumbHashedPath = path.join(imageDir, 'rezepte', 'thumb', hashedFilename);
-	const thumbUnhashedPath = path.join(imageDir, 'rezepte', 'thumb', unhashedFilename);
+	const thumbHashedPath = path.join(thumbDir, hashedFilename);
+	const thumbUnhashedPath = path.join(thumbDir, unhashedFilename);
 	console.log('[ImageProcessing] Saving thumbnail to:', { thumbHashedPath, thumbUnhashedPath });
 
 	await sharp(thumbBuffer).toFile(thumbHashedPath);

src/utils/recipeFormHelpers.ts

@@ -72,6 +72,20 @@ export interface RecipeFormData {
 	translationMetadata?: TranslationMetadata;
 }
 
+/**
+ * Build a plain object of form values that is safe to return from a SvelteKit
+ * action (e.g. inside `fail(...)`). Drops File entries such as `recipe_image`,
+ * which devalue cannot serialize and which would otherwise crash the action
+ * response with a 500 ("Cannot stringify arbitrary non-POJOs").
+ */
+export function serializableFormValues(formData: FormData): Record<string, string> {
+	const out: Record<string, string> = {};
+	for (const [key, value] of formData.entries()) {
+		if (typeof value === 'string') out[key] = value;
+	}
+	return out;
+}
+
 /**
  * Extracts recipe data from FormData
  * Handles both simple fields and complex JSON-encoded nested structures