Bump version to 0.21.1

CHANGELOG.md

@@ -4,6 +4,59 @@ All notable changes to this project will be documented in this file.
 
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.1.0/).
 
+## [0.21.1] - 2026-09-25
+
+### Changed
+- `GuestOrderClaimer` and its `UserAuthenticated` listener moved from 3dealer's own
+  `App\Services`/`App\Listeners` into `Modules\Core\Customer\Services\GuestOrderClaimer` /
+  `Listeners\ClaimGuestOrdersOnLogin`, registered in `CustomerServiceProvider` — attaching a
+  placed guest order to an account once its billing `contact_email` case-insensitively matches
+  the account's email (only ever safe right after the shopper has proved they own that email: a
+  login code, or 3dealer's own email-change confirmation) was already core-appropriate logic
+  with no 3dealer-specific behavior. `Account\EmailController::verify()` now calls the core
+  service directly.
+
+## [0.21.0] - 2026-09-25
+
+### Added
+- `Modules\Core\File` — a generic, storage-backend-agnostic file registry: `Models\File` (a
+  `files` table row per stored file — disk, path, original name, mime, size, a `purpose` tag,
+  and a nullable polymorphic owner), `Services\FileService` (store/retrieve/download/exists/
+  delete/list/`pruneUnowned`, delegating every actual byte-level operation to a
+  `Contracts\FileAdapterInterface` resolved per disk — `Adapters\LocalFileAdapter` today, the
+  same contextual-binding pattern `Shipping\Contracts\CarrierFulfillmentInterface` already uses
+  per carrier, so a future `S3FileAdapter` is one class and one more match arm, nothing else
+  changes), and `Http\Controllers\DownloadFileController` — a signed-URL-only route
+  (`files.download`) any consuming app can mint a link to, serving either inline (a preview) or
+  as a forced download (`?download=1`).
+- `Modules\Core\File\Http\Controllers\UploadFileController` — an abstract base for "accept an
+  upload, validate it, store it via `FileService`, return its id" endpoints. Which
+  extensions/sizes are acceptable is deliberately left to a concrete subclass's own
+  `purpose()`/`validationRules()` overrides (ordinary server-side PHP, never trusting anything
+  the request itself claims about its own limits) — a real policy decision that can differ per
+  site and even per product/field, not something a shared base class or config file could
+  express safely.
+- `boboko:file:prune-unowned {purpose}` — deletes every unowned `File` of a given purpose past
+  its grace period (`--hours`, default 24). Generic: any consuming app schedules it once per
+  purpose string it stores files under.
+- `Modules\Core\Cart\Events\CartLineAdded`/`Checkout\Events\OrderPlaced` listeners
+  (`File\Listeners\AttachCustomFieldFileToCartLine`/`TransferCustomFieldFileOwnership`) that
+  re-point a `File`'s ownership from unowned → the real `CartLine` once one exists, then from
+  that `CartLine` → the `OrderLine` an order is placed with — so a File referenced by a product
+  custom field survives the cart it originated from being cleared, without ever being copied.
+
+### Changed
+- The admin order-lines table's collapsible details dropdown (next to the existing price
+  breakdown) now shows a product's custom-field answers (`OrderLine.meta.custom_fields`) — a
+  bordered table matching the existing price-breakdown one, with a thumbnail preview and a
+  download-icon link for a file answer, resolved through `File\Services\FileService`'s signed
+  route. Previously never shown anywhere in the admin.
+- 3dealer's product custom-field photo upload (`CustomFieldUploadController`), cart line meta
+  (`CartController::customFieldsMeta()`), and pruning (formerly its own `PruneCustomFieldUploads`
+  command) now go through `Modules\Core\File` instead of a bespoke `Crypt::encryptString({disk,
+  path, name, mime})` reference scheme — a cart/order line's file answer is now just a `File`
+  row's `file_id`, with `File` as the single source of truth for every other detail.
+
 ## [0.20.2] - 2026-09-25
 
 ### Changed

composer.json

@@ -2,7 +2,7 @@
   "name": "boboko/core",
   "description": "Core module — authentication and shared panel behaviour",
   "type": "library",
-  "version": "0.20.2",
+  "version": "0.21.1",
   "autoload": {
     "psr-4": {
       "Modules\\Core\\": "src/"
@@ -43,6 +43,7 @@
         "Modules\\Core\\Providers\\CatalogServiceProvider",
         "Modules\\Core\\Providers\\CartServiceProvider",
         "Modules\\Core\\Providers\\ReviewServiceProvider",
+        "Modules\\Core\\Providers\\FileServiceProvider",
         "Modules\\Core\\Providers\\ShippingServiceProvider",
         "Modules\\Core\\Providers\\OrderServiceProvider",
         "Modules\\Core\\Providers\\PrivacyServiceProvider"

database/migrations/2026_09_25_000001_create_files_table.php

@@ -0,0 +1,50 @@
+<?php
+
+use Illuminate\Database\Migrations\Migration;
+use Illuminate\Database\Schema\Blueprint;
+use Illuminate\Support\Facades\Schema;
+
+/**
+ * A generic, storage-backend-agnostic file registry — Modules\Core\File\
+ * Services\FileService's own backing table. `disk`/`path` are whatever
+ * Laravel's Storage facade already understands (local, s3, ...); this
+ * table adds what Flysystem itself has no concept of: who a file
+ * belongs to, why it was uploaded, and whether anything still needs it.
+ *
+ * `owner_type`/`owner_id` are nullable — a file can (and, for a product
+ * custom-field photo, always does) exist before anything owns it yet: a
+ * shopper picks a photo on the product page and it's uploaded immediately
+ * (see 3dealer's CustomFieldUploadController), well before add-to-cart
+ * gives it a CartLine to belong to. FileService::attachOwner() re-points
+ * these columns once an owner exists, rather than creating a second row
+ * for the same physical file.
+ *
+ * `purpose` (e.g. 'custom-field-upload') lets one table serve unrelated
+ * future features without collision — FileService itself has no
+ * knowledge of what a purpose means, callers scope their own queries by
+ * it.
+ */
+return new class extends Migration
+{
+    public function up(): void
+    {
+        Schema::create('files', function (Blueprint $table) {
+            $table->id();
+            $table->string('disk');
+            $table->string('path');
+            $table->string('original_name')->nullable();
+            $table->string('mime')->nullable();
+            $table->unsignedBigInteger('size')->nullable();
+            $table->string('purpose');
+            $table->nullableMorphs('owner');
+            $table->timestamps();
+
+            $table->index(['purpose', 'owner_type', 'owner_id']);
+        });
+    }
+
+    public function down(): void
+    {
+        Schema::dropIfExists('files');
+    }
+};

src/Customer/Listeners/ClaimGuestOrdersOnLogin.php

@@ -0,0 +1,24 @@
+<?php
+
+namespace Modules\Core\Customer\Listeners;
+
+use Modules\Core\Auth\Events\UserAuthenticated;
+use Modules\Core\Customer\Services\GuestOrderClaimer;
+
+/**
+ * Registered from Providers\CustomerServiceProvider — UserAuthenticated
+ * only fires after a valid login code, which is what makes matching
+ * placed guest orders by email safe (see GuestOrderClaimer's own
+ * docblock).
+ */
+class ClaimGuestOrdersOnLogin
+{
+    public function __construct(
+        private readonly GuestOrderClaimer $claimer,
+    ) {}
+
+    public function handle(UserAuthenticated $event): void
+    {
+        $this->claimer->claim($event->user);
+    }
+}

src/Customer/Services/GuestOrderClaimer.php

@@ -0,0 +1,41 @@
+<?php
+
+namespace Modules\Core\Customer\Services;
+
+use Illuminate\Contracts\Auth\Authenticatable;
+use Lunar\Base\LunarUser;
+use Lunar\Models\Order;
+
+/**
+ * Attaches placed guest orders to an account when their billing email
+ * matches the account's email, case-insensitively. Only ever called right
+ * after the shopper has proved they own that email — a login code
+ * (Auth\Events\UserAuthenticated), or the code confirming an email change
+ * (a consuming app's own email-change flow, e.g. 3dealer's Account\
+ * EmailController::verify()) — which is what makes matching on email safe.
+ *
+ * Only orders with no customer_id AND no user_id are touched: an order
+ * already attached to any account (guest or otherwise) is left alone.
+ */
+class GuestOrderClaimer
+{
+    public function claim(Authenticatable&LunarUser $user): int
+    {
+        $customer = $user->latestCustomer();
+
+        if (! $customer || ! $user->email) {
+            return 0;
+        }
+
+        return Order::query()
+            ->whereNotNull('placed_at')
+            ->whereNull('customer_id')
+            ->whereNull('user_id')
+            ->whereHas('billingAddress', fn ($query) => $query
+                ->whereRaw('lower(contact_email) = ?', [strtolower($user->email)]))
+            ->update([
+                'customer_id' => $customer->id,
+                'user_id' => $user->id,
+            ]);
+    }
+}

src/File/Adapters/LocalFileAdapter.php

@@ -0,0 +1,48 @@
+<?php
+
+namespace Modules\Core\File\Adapters;
+
+use Illuminate\Contracts\Filesystem\Filesystem;
+use Illuminate\Http\UploadedFile;
+use Modules\Core\File\Contracts\FileAdapterInterface;
+use Symfony\Component\HttpFoundation\StreamedResponse;
+
+/**
+ * Wraps Laravel's own 'local' Storage disk — see FileAdapterInterface's
+ * own docblock for why this exists as a named adapter rather than every
+ * caller reaching for Storage::disk('local') directly: swapping to a
+ * different backend later (S3FileAdapter, say) means adding one class and
+ * one contextual-binding entry, touching nothing that already uses
+ * FileService.
+ */
+class LocalFileAdapter implements FileAdapterInterface
+{
+    public function __construct(
+        private readonly Filesystem $disk,
+    ) {}
+
+    public function store(UploadedFile $file, string $directory): string
+    {
+        return $this->disk->putFile($directory, $file);
+    }
+
+    public function exists(string $path): bool
+    {
+        return $this->disk->exists($path);
+    }
+
+    public function delete(string $path): void
+    {
+        $this->disk->delete($path);
+    }
+
+    public function retrieve(string $path, ?string $name = null): StreamedResponse
+    {
+        return $this->disk->response($path, $name);
+    }
+
+    public function download(string $path, ?string $name = null): StreamedResponse
+    {
+        return $this->disk->download($path, $name);
+    }
+}

src/File/Commands/PruneUnownedFilesCommand.php

@@ -0,0 +1,32 @@
+<?php
+
+namespace Modules\Core\File\Commands;
+
+use Illuminate\Console\Command;
+use Modules\Core\File\Services\FileService;
+
+/**
+ * Generic wrapper around FileService::pruneUnowned() — see that method's
+ * own docblock for what "unowned" means and why the grace period exists.
+ * Any caller (3dealer's product custom-field photo uploads today, some
+ * other future upload feature tomorrow, in this app or another consuming
+ * app) schedules this once per purpose string it stores files under; this
+ * command itself has no opinion about what any given purpose means.
+ */
+class PruneUnownedFilesCommand extends Command
+{
+    protected $signature = 'boboko:file:prune-unowned {purpose} {--hours=24 : Only delete unowned files older than this}';
+
+    protected $description = 'Delete unowned files of a given purpose past their grace period';
+
+    public function handle(FileService $files): int
+    {
+        $purpose = $this->argument('purpose');
+
+        $deleted = $files->pruneUnowned($purpose, now()->subHours((int) $this->option('hours')));
+
+        $this->info("Deleted {$deleted} unowned file(s) of purpose \"{$purpose}\".");
+
+        return self::SUCCESS;
+    }
+}

src/File/Contracts/FileAdapterInterface.php

@@ -0,0 +1,46 @@
+<?php
+
+namespace Modules\Core\File\Contracts;
+
+use Illuminate\Http\UploadedFile;
+use Symfony\Component\HttpFoundation\StreamedResponse;
+
+/**
+ * One storage backend's actual byte-level operations — a disk name (see
+ * Modules\Core\File\Models\File::$disk) resolves to exactly one
+ * implementation of this via Modules\Core\File\Services\FileService's own
+ * contextual binding (see Providers\FileServiceProvider), the same
+ * pattern Shipping\Contracts\CarrierFulfillmentInterface uses to pick an
+ * AcsFulfillmentService/BoxNowFulfillmentService per carrier. FileService
+ * itself never touches a disk directly — every backend-specific detail
+ * (a local path, an S3 bucket/region, ...) lives entirely inside one
+ * adapter, so adding a new backend never touches FileService or any of
+ * its callers.
+ */
+interface FileAdapterInterface
+{
+    /**
+     * Stores the file under $directory, returning the path to record on
+     * the File row (Models\File::$path) — backend-specific (a relative
+     * local path, an S3 object key, ...), meaningful only to this same
+     * adapter.
+     */
+    public function store(UploadedFile $file, string $directory): string;
+
+    public function exists(string $path): bool;
+
+    public function delete(string $path): void;
+
+    /**
+     * Streams the file at $path straight to the browser, inline (the
+     * browser renders/previews it directly rather than prompting to save).
+     */
+    public function retrieve(string $path, ?string $name = null): StreamedResponse;
+
+    /**
+     * Same bytes as retrieve(), but as a forced attachment — the browser
+     * always prompts to save, even for a type it could otherwise preview
+     * (an image inline in a new tab).
+     */
+    public function download(string $path, ?string $name = null): StreamedResponse;
+}

src/File/Http/Controllers/DownloadFileController.php

@@ -0,0 +1,45 @@
+<?php
+
+namespace Modules\Core\File\Http\Controllers;
+
+use Illuminate\Http\Request;
+use Illuminate\Routing\Controller;
+use Modules\Core\File\Models\File;
+use Modules\Core\File\Services\FileService;
+use Symfony\Component\HttpFoundation\StreamedResponse;
+
+/**
+ * Streams a File's bytes straight to the browser — inline by default (a
+ * browser-previewable type like an image opens/displays directly), or as
+ * a forced download with ?download=1 (e.g. an explicit "Download" button
+ * distinct from a thumbnail/preview link pointing at the same file). Only
+ * reachable via a short-lived signed URL — same auth model as
+ * Modules\Core\Shipping\Http\Controllers\DownloadShipmentLabelController
+ * (a valid signature IS the auth check, no separate staff/customer
+ * session check here) — so any caller that can mint a signed URL to this
+ * route (the storefront's own custom-field upload flow, or the admin
+ * order-line display) can hand a viewer a working link without this
+ * controller knowing anything about who they are or why they're allowed
+ * to see this particular file.
+ *
+ * Looks the File up manually from a plain {file} id rather than relying
+ * on implicit route-model-binding — registered via loadRoutesFrom() with
+ * no middleware group (see Providers\FileServiceProvider::boot()), so
+ * SubstituteBindings never runs and a type-hinted File parameter would
+ * silently resolve to an empty, non-existent model instead of 404ing.
+ */
+class DownloadFileController extends Controller
+{
+    public function __invoke(Request $request, int $file, FileService $files): StreamedResponse
+    {
+        if (! $request->hasValidSignature()) {
+            abort(401);
+        }
+
+        $file = File::findOrFail($file);
+
+        abort_unless($files->exists($file), 404);
+
+        return $request->boolean('download') ? $files->download($file) : $files->retrieve($file);
+    }
+}

src/File/Http/Controllers/UploadFileController.php

@@ -0,0 +1,76 @@
+<?php
+
+namespace Modules\Core\File\Http\Controllers;
+
+use Illuminate\Http\JsonResponse;
+use Illuminate\Http\Request;
+use Illuminate\Routing\Controller;
+use Illuminate\Support\Facades\Validator;
+use Modules\Core\File\Services\FileService;
+
+/**
+ * The generic "accept an upload, validate it, store it via FileService,
+ * return its id" flow — what varies per use case (which extensions/sizes
+ * are acceptable) is deliberately NOT configurable here, and NEVER trusts
+ * anything the request itself claims about its own limits: a client could
+ * simply lie about them. purpose()/validationRules() are protected hooks
+ * a concrete subclass overrides instead — an ordinary PHP method a caller
+ * writes once per upload policy, not request input, so the actual limit
+ * enforced is always whatever server-side code says it is. Different
+ * products can even need different limits (a 3D-print reference photo
+ * vs. a video upload, say) — that's still a subclass's own store()
+ * override deciding which rule set applies to a given request, not
+ * something this base class or a shared config file could express.
+ */
+abstract class UploadFileController extends Controller
+{
+    /**
+     * The File row's `purpose` tag (see Models\File) — also the storage
+     * directory it lands under (FileService::store()'s single $purpose
+     * param doubles as both).
+     */
+    abstract protected function purpose(): string;
+
+    /**
+     * Laravel validation rules for the incoming request, keyed exactly as
+     * $request->all() would be. Must include a 'file' rule accepting an
+     * uploaded file — this class always reads the file from that key.
+     *
+     * @return array<string, array<int, mixed>>
+     */
+    abstract protected function validationRules(Request $request): array;
+
+    public function store(Request $request, FileService $files): JsonResponse
+    {
+        $validator = Validator::make(
+            $request->all(),
+            $this->validationRules($request),
+            $this->validationMessages($request),
+            $this->validationAttributes($request),
+        );
+
+        if ($validator->fails()) {
+            return response()->json(['error' => $validator->errors()->first('file')], 422);
+        }
+
+        $file = $files->store($request->file('file'), $this->purpose());
+
+        return response()->json(['file_id' => $file->id]);
+    }
+
+    /**
+     * @return array<string, string>
+     */
+    protected function validationMessages(Request $request): array
+    {
+        return [];
+    }
+
+    /**
+     * @return array<string, string>
+     */
+    protected function validationAttributes(Request $request): array
+    {
+        return [];
+    }
+}

src/File/Listeners/AttachCustomFieldFileToCartLine.php

@@ -0,0 +1,44 @@
+<?php
+
+namespace Modules\Core\File\Listeners;
+
+use Modules\Core\Cart\Events\CartLineAdded;
+use Modules\Core\File\Models\File;
+use Modules\Core\File\Services\FileService;
+
+/**
+ * A custom-field photo is uploaded (and gets its own File row, unowned)
+ * the moment a shopper picks it on the product page — before add-to-cart
+ * even runs (see 3dealer's CustomFieldUploadController). The storefront's
+ * add-to-cart request only carries that File's `id` in its custom_fields
+ * answer (see CartController::customFieldsMeta()); this is what actually
+ * gives the File an owner, once the real CartLine it belongs to exists.
+ *
+ * Listens for Cart\Events\CartLineAdded rather than reaching back into
+ * the cart after CartService::addLine() returns — that event already
+ * carries the exact CartLine Lunar resolved/created, with no need to
+ * re-match it by meta (ambiguous whenever two lines share a purchasable +
+ * similar meta).
+ */
+class AttachCustomFieldFileToCartLine
+{
+    public function __construct(
+        private readonly FileService $files,
+    ) {}
+
+    public function handle(CartLineAdded $event): void
+    {
+        $fileIds = collect($event->line->meta['custom_fields'] ?? [])
+            ->pluck('file_id')
+            ->filter()
+            ->all();
+
+        if ($fileIds === []) {
+            return;
+        }
+
+        File::query()
+            ->whereIn('id', $fileIds)
+            ->each(fn (File $file) => $this->files->attachOwner($file, $event->line));
+    }
+}

src/File/Listeners/TransferCustomFieldFileOwnership.php

@@ -0,0 +1,62 @@
+<?php
+
+namespace Modules\Core\File\Listeners;
+
+use Lunar\Models\OrderLine;
+use Modules\Core\Checkout\Events\OrderPlaced;
+use Modules\Core\File\Models\File;
+use Modules\Core\File\Services\FileService;
+
+/**
+ * Lunar\Pipelines\Order\Creation\CreateOrderLines copies a CartLine's
+ * meta (custom_fields included) onto its new OrderLine verbatim — so an
+ * order's custom-field file answer keeps the exact same `file_id` its
+ * originating cart line's meta already had (see 3dealer's CartController::
+ * customFieldsMeta(), which stores only that id — File is the single
+ * source of truth for disk/path/name/mime, never duplicated into meta).
+ * That id is enough to find the File row directly, with no need to match
+ * an OrderLine back to "the" CartLine it came from.
+ *
+ * Re-points ownership (not a copy — the same File row) from whatever
+ * CartLine owned it to this OrderLine, so a customer's placed order keeps
+ * its file even after the cart it came from is later cleared (see
+ * Modules\Core\Cart\Services\CartService, or a checkout-complete cart
+ * reset) — FileService::pruneUnowned() only ever removes UNOWNED files,
+ * but a File left pointing at a since-deleted CartLine would be just as
+ * orphaned in practice; this listener is what keeps that from ever
+ * happening for a real, placed order.
+ *
+ * Listens for Checkout\Events\OrderPlaced, not an OrderLine model event —
+ * that's the one place in this codebase an order is reliably known to be
+ * placed exactly once (see that event's own docblock), and it hands over
+ * the whole Order with every line already loaded.
+ */
+class TransferCustomFieldFileOwnership
+{
+    public function __construct(
+        private readonly FileService $files,
+    ) {}
+
+    public function handle(OrderPlaced $event): void
+    {
+        foreach ($event->order->lines as $line) {
+            $this->transferLine($line);
+        }
+    }
+
+    private function transferLine(OrderLine $line): void
+    {
+        $fileIds = collect($line->meta['custom_fields'] ?? [])
+            ->pluck('file_id')
+            ->filter()
+            ->all();
+
+        if ($fileIds === []) {
+            return;
+        }
+
+        File::query()
+            ->whereIn('id', $fileIds)
+            ->each(fn (File $file) => $this->files->attachOwner($file, $line));
+    }
+}

src/File/Models/File.php

@@ -0,0 +1,28 @@
+<?php
+
+namespace Modules\Core\File\Models;
+
+use Illuminate\Database\Eloquent\Model;
+use Illuminate\Database\Eloquent\Relations\MorphTo;
+
+/**
+ * A row per physical file Modules\Core\File\Services\FileService has
+ * stored — see that migration's own docblock for why `owner_type`/
+ * `owner_id` are nullable and what `purpose` is for.
+ */
+class File extends Model
+{
+    protected $guarded = [];
+
+    protected function casts(): array
+    {
+        return [
+            'size' => 'integer',
+        ];
+    }
+
+    public function owner(): MorphTo
+    {
+        return $this->morphTo();
+    }
+}

src/File/Services/FileService.php

@@ -0,0 +1,135 @@
+<?php
+
+namespace Modules\Core\File\Services;
+
+use Illuminate\Contracts\Container\Container;
+use Illuminate\Database\Eloquent\Model;
+use Illuminate\Http\UploadedFile;
+use Illuminate\Support\Carbon;
+use Illuminate\Support\Collection;
+use Modules\Core\File\Contracts\FileAdapterInterface;
+use Modules\Core\File\Models\File;
+use Symfony\Component\HttpFoundation\StreamedResponse;
+
+/**
+ * Orchestrates the `files` table (ownership, purpose, cleanup — see that
+ * migration's own docblock) on top of whichever FileAdapterInterface a
+ * disk resolves to (see Providers\FileServiceProvider's contextual
+ * binding) — never touches a disk or a raw path itself. Knows nothing
+ * about custom fields, carts, or orders specifically; every caller
+ * (3dealer's custom-field upload flow today, some other future
+ * file-upload need tomorrow) supplies its own `purpose` string and owner
+ * model, and scopes its own queries by them.
+ *
+ * `purpose` also doubles as the storage directory a file lands under
+ * (store() passes it straight through as the adapter's own $directory) —
+ * one string to name both, rather than every caller supplying two
+ * near-identical values for what's really the same distinction ("which
+ * kind of upload is this").
+ */
+class FileService
+{
+    public function __construct(
+        private readonly Container $container,
+    ) {}
+
+    public function store(UploadedFile $file, string $purpose, string $disk = 'local'): File
+    {
+        $path = $this->adapter($disk)->store($file, $purpose);
+
+        return File::create([
+            'disk' => $disk,
+            'path' => $path,
+            'original_name' => $file->getClientOriginalName(),
+            'mime' => $file->getMimeType(),
+            'size' => $file->getSize(),
+            'purpose' => $purpose,
+        ]);
+    }
+
+    /**
+     * Re-points an existing File at its owner — called once an owner
+     * actually exists (e.g. a shopper's picked-but-not-yet-added photo
+     * gets a CartLine the moment it's added to the cart). Never creates a
+     * second row for the same physical file.
+     */
+    public function attachOwner(File $file, Model $owner): File
+    {
+        $file->update([
+            'owner_type' => $owner->getMorphClass(),
+            'owner_id' => $owner->getKey(),
+        ]);
+
+        return $file;
+    }
+
+    public function retrieve(File $file): StreamedResponse
+    {
+        return $this->adapter($file->disk)->retrieve($file->path, $file->original_name);
+    }
+
+    /**
+     * Same file as retrieve(), forced as a download (Content-Disposition:
+     * attachment) rather than served inline — for a button distinct from
+     * a preview link/thumbnail pointing at the same File.
+     */
+    public function download(File $file): StreamedResponse
+    {
+        return $this->adapter($file->disk)->download($file->path, $file->original_name);
+    }
+
+    public function exists(File $file): bool
+    {
+        return $this->adapter($file->disk)->exists($file->path);
+    }
+
+    public function delete(File $file): void
+    {
+        $this->adapter($file->disk)->delete($file->path);
+
+        $file->delete();
+    }
+
+    /**
+     * @return Collection<int, File>
+     */
+    public function list(string $purpose, ?Model $owner = null): Collection
+    {
+        return File::query()
+            ->where('purpose', $purpose)
+            ->when($owner, fn ($query) => $query
+                ->where('owner_type', $owner->getMorphClass())
+                ->where('owner_id', $owner->getKey()))
+            ->get();
+    }
+
+    /**
+     * Deletes every File of the given purpose that has no owner yet and
+     * is older than $olderThan — the grace period covers a shopper still
+     * on the page with a picked-but-not-yet-added file. An owned File
+     * (whatever the owner type) is never touched here; callers that want
+     * owned files gone too should delete() them explicitly wherever that
+     * ownership itself ends (e.g. a CartLine being removed).
+     *
+     * @return int number of files deleted
+     */
+    public function pruneUnowned(string $purpose, Carbon $olderThan): int
+    {
+        $files = File::query()
+            ->where('purpose', $purpose)
+            ->whereNull('owner_type')
+            ->where('created_at', '<', $olderThan)
+            ->get();
+
+        foreach ($files as $file) {
+            $this->delete($file);
+        }
+
+        return $files->count();
+    }
+
+    private function adapter(string $disk): FileAdapterInterface
+    {
+        return $this->container->make(FileAdapterInterface::class, ['disk' => $disk]);
+    }
+}

src/File/routes/web.php

@@ -0,0 +1,7 @@
+<?php
+
+use Illuminate\Support\Facades\Route;
+use Modules\Core\File\Http\Controllers\DownloadFileController;
+
+Route::get('files/{file}/download', DownloadFileController::class)
+    ->name('files.download');

src/Order/Filament/Extensions/OrderItemsTableExtension.php

@@ -3,22 +3,60 @@
 namespace Modules\Core\Order\Filament\Extensions;
 
 use Filament\Actions\BulkAction;
+use Filament\Support\Colors\Color;
 use Filament\Support\Exceptions\Halt;
+use Filament\Tables\Columns\Layout\Panel;
+use Filament\Tables\Columns\TextColumn;
 use Filament\Tables\Table;
+use Illuminate\Support\Facades\Blade;
+use Illuminate\Support\Facades\URL;
+use Illuminate\Support\HtmlString;
 use Lunar\Admin\Support\Extending\BaseExtension;
+use Lunar\Models\OrderLine;
+use Modules\Core\File\Models\File;
 
 /**
- * Same fix as OrderActionsExtension, applied to the order lines
- * table's "bulk_refund" toolbar action (Lunar\Admin\...\OrderItemsTable::
- * getBulkRefundAction()) — see that class's docblock for the underlying
- * Filament bug (failureNotification()+failure()+halt() never actually
- * sends the notification, because halt()'s Halt exception is caught before
- * Filament reaches the code that would send it).
+ * extendTable() has two unrelated jobs: the "bulk_refund" toolbar-action
+ * fix (see fixFailureNotification()'s own docblock — a genuine Filament
+ * bug), and adding a "Custom Fields" entry to each order line's own
+ * collapsible details dropdown (Lunar\Admin\...\OrderItemsTable::
+ * getOrderLinesTableColumns()'s Panel — the same one already showing
+ * stock level, notes, and the price_breakdowns table) — the shopper's
+ * answers to Product::$custom_fields (a reference photo, personalization
+ * text, ...), stored on OrderLine.meta by 3dealer's CartController::
+ * customFieldsMeta() and, until now, never shown anywhere in the admin.
+ *
+ * Finds that Panel via $table->getCollapsibleColumnsLayout() — NOT
+ * $table->getColumns(), which two earlier attempts at this both reached
+ * for. HasColumns::pushColumns() flattens every Panel/Split into leaf
+ * columns at table-build time and stores THAT flat list as
+ * $this->columns (what getColumns() returns); the original nested
+ * Panel/Stack objects actually used for rendering are kept separately —
+ * in $this->columnsLayout for a non-collapsible layout component, or
+ * $this->collapsibleColumnsLayout for one that IS collapsible (this
+ * order-lines Panel is, via ->collapsible()). So `$column instanceof
+ * Panel` over getColumns() can never match anything — Panel/Split
+ * instances simply never appear in that array at all — and a fix built
+ * on that check silently mutated nothing. A first attempt building a
+ * brand new Panel and re-calling $table->columns() on top of the
+ * existing setup fixed nothing either and instead rendered as a stray
+ * empty extra column outside the dropdown (caught by actually opening
+ * the order page). Mutates the found Panel's Stack in place via
+ * Stack::schema(), the one part of both earlier attempts that actually
+ * worked once the right object was found.
+ *
+ * Its own TextColumn rather than reusing the Panel's existing KeyValue:
+ * KeyValue's own Blade view HTML-escapes every value ({{ $value }}),
+ * which can't render a clickable link for a file answer.
  */
 class OrderItemsTableExtension extends BaseExtension
 {
     public function extendTable(Table $table): Table
     {
+        if ($table->getCollapsibleColumnsLayout() instanceof Panel) {
+            $this->addCustomFieldsColumn($table->getCollapsibleColumnsLayout());
+        }
+
         return $table->toolbarActions(
             array_map(
                 fn ($action) => $action instanceof BulkAction && $action->getName() === 'bulk_refund'
@@ -29,6 +67,88 @@ class OrderItemsTableExtension extends BaseExtension
         );
     }
 
+    private function addCustomFieldsColumn(Panel $panel): void
+    {
+        $stack = $panel->getComponents()[0] ?? null;
+
+        if ($stack === null) {
+            return;
+        }
+
+        $stack->schema([
+            ...$stack->getComponents(),
+            TextColumn::make('custom_fields')
+                ->label('Custom Fields')
+                ->visible(fn (OrderLine $record) => filled($record->meta['custom_fields'] ?? null))
+                ->getStateUsing(fn (OrderLine $record) => $this->renderCustomFields($record))
+                ->html(),
+        ]);
+    }
+
+    /**
+     * Same table markup/classes as this Panel's own existing KeyValue
+     * component (Lunar\Admin's price_breakdowns, right above this in the
+     * dropdown — see lunarpanel::tables.components.key-value) for visual
+     * consistency, rebuilt here rather than reused: KeyValue's Blade view
+     * HTML-escapes every value ({{ $value }}), which can't render a
+     * thumbnail/download link for a file answer.
+     */
+    private function renderCustomFields(OrderLine $record): HtmlString
+    {
+        $rows = collect($record->meta['custom_fields'] ?? [])
+            ->map(fn (array $field) => sprintf(
+                '<tr class="divide-x divide-gray-950/10 dark:divide-white/10"><td class="p-2 font-medium whitespace-nowrap">%s</td><td class="p-2">%s</td></tr>',
+                e($field['label']),
+                $field['type'] === 'file' ? $this->fileCell($field) : e($field['value'] ?? ''),
+            ))
+            ->implode('');
+
+        return new HtmlString(
+            '<div class="w-full mt-2 overflow-hidden overflow-x-auto ring-1 ring-inset ring-gray-950/10 dark:ring-white/10 rounded bg-white/70 dark:bg-white/5">'
+            .'<table class="min-w-full text-xs divide-y divide-gray-950/10 dark:divide-white/10"><tbody class="divide-y divide-gray-950/10 dark:divide-white/10">'
+            .$rows
+            .'</tbody></table></div>',
+        );
+    }
+
+    /**
+     * A thumbnail (previewable image types only — an inline-signed URL to
+     * the same File; see FileService::retrieve()) alongside an icon-only
+     * download link forcing Content-Disposition: attachment (FileService::
+     * download()) — two separate signed URLs, not one reused with a query
+     * string appended after signing, since a signature covers the exact
+     * query parameters present when it was minted.
+     */
+    private function fileCell(array $field): string
+    {
+        $file = File::find($field['file_id'] ?? null);
+
+        if ($file === null) {
+            return __('lunarpanel::global.na');
+        }
+
+        $previewUrl = URL::temporarySignedRoute('files.download', now()->addHours(2), ['file' => $file->id]);
+        $downloadUrl = URL::temporarySignedRoute('files.download', now()->addHours(2), ['file' => $file->id, 'download' => 1]);
+        $previewable = ['image/jpeg', 'image/png', 'image/webp', 'image/gif'];
+
+        $thumbnail = in_array($file->mime, $previewable, true)
+            ? sprintf(
+                '<a href="%s" target="_blank" rel="noopener"><img src="%s" alt="" style="width:2.5rem;height:2.5rem;object-fit:cover;border-radius:0.375rem;vertical-align:middle"></a>',
+                $previewUrl,
+                $previewUrl,
+            )
+            : '';
+
+        return sprintf(
+            '<div style="display:flex;align-items:center;gap:0.5rem">%s<span>%s</span><a href="%s" title="Download" style="color:rgb(%s);display:inline-flex">%s</a></div>',
+            $thumbnail,
+            e($file->original_name),
+            $downloadUrl,
+            Color::Blue[600],
+            Blade::render('<x-filament::icon icon="heroicon-o-arrow-down-tray" style="width:1rem;height:1rem"/>'),
+        );
+    }
+
     private function fixFailureNotification(BulkAction $action): BulkAction
     {
         $originalAction = $action->getActionFunction();

src/Providers/CustomerServiceProvider.php

@@ -6,11 +6,13 @@ use Illuminate\Support\Facades\Event;
 use Illuminate\Support\ServiceProvider;
 use Lunar\Facades\ModelManifest;
 use Lunar\Models\Contracts\Customer as LunarCustomer;
+use Modules\Core\Auth\Events\UserAuthenticated;
 use Modules\Core\Auth\Events\UserCreated;
 use Modules\Core\Customer\Events\CustomerAddressCreated;
 use Modules\Core\Customer\Events\CustomerAddressDeleted;
 use Modules\Core\Customer\Events\CustomerAddressUpdated;
 use Modules\Core\Customer\Events\CustomerProfileUpdated;
+use Modules\Core\Customer\Listeners\ClaimGuestOrdersOnLogin;
 use Modules\Core\Customer\Listeners\CreateCustomerForUser;
 use Modules\Core\Customer\Listeners\LogCustomerAccountActivity;
 use Modules\Core\Customer\Models\Customer;
@@ -35,6 +37,7 @@ class CustomerServiceProvider extends ServiceProvider
         $this->app->booted(fn () => ModelManifest::replace(LunarCustomer::class, Customer::class));
 
         Event::listen(UserCreated::class, CreateCustomerForUser::class);
+        Event::listen(UserAuthenticated::class, ClaimGuestOrdersOnLogin::class);
 
         Event::listen(CustomerAddressCreated::class, [LogCustomerAccountActivity::class, 'handleAddressCreated']);
         Event::listen(CustomerAddressUpdated::class, [LogCustomerAccountActivity::class, 'handleAddressUpdated']);

src/Providers/FileServiceProvider.php

@@ -0,0 +1,51 @@
+<?php
+
+namespace Modules\Core\Providers;
+
+use Illuminate\Support\Facades\Event;
+use Illuminate\Support\Facades\Storage;
+use Illuminate\Support\ServiceProvider;
+use InvalidArgumentException;
+use Modules\Core\Cart\Events\CartLineAdded;
+use Modules\Core\Checkout\Events\OrderPlaced;
+use Modules\Core\File\Adapters\LocalFileAdapter;
+use Modules\Core\File\Commands\PruneUnownedFilesCommand;
+use Modules\Core\File\Contracts\FileAdapterInterface;
+use Modules\Core\File\Listeners\AttachCustomFieldFileToCartLine;
+use Modules\Core\File\Listeners\TransferCustomFieldFileOwnership;
+
+class FileServiceProvider extends ServiceProvider
+{
+    public function register(): void
+    {
+        // Same pattern as ShippingServiceProvider's CarrierFulfillmentInterface
+        // binding — a plain param ('disk' here, 'carrier' there) picks which
+        // concrete adapter Modules\Core\File\Services\FileService actually
+        // talks to. Adding a real S3FileAdapter later is one class plus one
+        // more match arm here; nothing that already calls FileService changes.
+        $this->app->bind(FileAdapterInterface::class, function ($app, array $params) {
+            $disk = $params['disk'] ?? 'local';
+
+            return match ($disk) {
+                'local' => new LocalFileAdapter(Storage::disk($disk)),
+                default => throw new InvalidArgumentException("No FileAdapterInterface available for disk \"{$disk}\"."),
+            };
+        });
+    }
+
+    public function boot(): void
+    {
+        // Signed-URL auth only, same model as Shipping\Http\Controllers\
+        // DownloadShipmentLabelController — see that route's own docblock.
+        // Migrations live in the shared database/migrations directory
+        // CoreServiceProvider already loads; nothing more to register here.
+        $this->loadRoutesFrom(__DIR__.'/../File/routes/web.php');
+
+        Event::listen(CartLineAdded::class, AttachCustomFieldFileToCartLine::class);
+        Event::listen(OrderPlaced::class, TransferCustomFieldFileOwnership::class);
+
+        if ($this->app->runningInConsole()) {
+            $this->commands([PruneUnownedFilesCommand::class]);
+        }
+    }
+}