feat: delete actions for warehouse/reservations/coupons/customers + Koja listing toggle

Delete (every manageable entity that only had "add" now has delete):
- Ingredients (warehouse): new DELETE /inventory/ingredients/{id} (soft-delete via
  the global DeletedAt filter — no FK trouble with recipes/movements) + NoOp stub +
  trash button in the materials cards.
- Reservations: new DELETE /reservations/{id} (soft-delete) + per-card delete button.
- Coupons & Customers: backend DELETE already existed; wired delete buttons in the UI.
- Shared ConfirmDialog component used by all delete flows (RTL-aware).
- Audit result: tables/branches/taxes/kitchen-stations/expenses/menu/terminals already
  had delete; HR has no "add" so no delete needed; shifts intentionally excluded
  (financial open/close records, not add-style entities).

Koja visibility:
- New Cafe.ShowOnKoja flag, default TRUE (DB default true so existing cafés stay
  listed). Discover query now filters IsVerified && !Deleted && ShowOnKoja.
- public-profile GET/PUT expose showOnKoja; dashboard public-profile panel has an
  on-by-default toggle that persists immediately. Platform IsVerified gate unchanged.
- EF migration AddCafeShowOnKoja (defaultValue: true).

Also: added the missing errors.generic i18n key (fa/en/ar) so useApiError's fallback
resolves instead of rendering the literal "errors.generic". 81 API tests pass.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

web/dashboard/src/components/discover/cafe-public-profile-panel.tsx

@@ -9,6 +9,7 @@ import {
   updateCafePublicProfile,
   uploadGalleryPhoto,
   type CafeProfileEdit,
+  type UpdateCafeProfilePayload,
 } from "@/lib/api/cafe-public-profile";
 import type { WorkingHours } from "@/lib/api/public-discover";
 import { resolveMediaUrl } from "@/lib/api/client";
@@ -42,6 +43,7 @@ export function CafePublicProfilePanel({ cafeId }: Props) {
   const [instagram, setInstagram] = useState<string>("");
   const [website, setWebsite] = useState<string>("");
   const [hours, setHours] = useState<WorkingHours>(emptyHours());
+  const [showOnKoja, setShowOnKoja] = useState(true);
   const [initialized, setInitialized] = useState(false);
 
   // Populate local state once we get server data
@@ -50,17 +52,20 @@ export function CafePublicProfilePanel({ cafeId }: Props) {
     setInstagram(profile.instagramHandle ?? "");
     setWebsite(profile.websiteUrl ?? "");
     setHours(profile.workingHours ?? emptyHours());
+    setShowOnKoja(profile.showOnKoja ?? true);
     setInitialized(true);
   }
 
   // ── Save info/social/hours ────────────────────────────────────────────────
   const saveMutation = useMutation({
-    mutationFn: () =>
+    mutationFn: (override?: Partial<UpdateCafeProfilePayload>) =>
       updateCafePublicProfile(cafeId, {
         description,
         instagramHandle: instagram || null,
         websiteUrl: website || null,
         workingHours: hours,
+        showOnKoja,
+        ...override,
       }),
     onSuccess: (data) => {
       qc.setQueryData(["cafe-public-profile", cafeId], data);
@@ -157,6 +162,23 @@ export function CafePublicProfilePanel({ cafeId }: Props) {
       {tab === "info" && (
         <Card className="rounded-xl border border-border/80">
           <CardContent className="space-y-4 p-4">
+            <label className="flex cursor-pointer items-center justify-between gap-3 rounded-lg border border-[#0F6E56]/25 bg-[#E1F5EE]/40 px-3 py-2.5">
+              <span className="min-w-0">
+                <span className="block text-sm font-medium">{t("showOnKoja")}</span>
+                <span className="block text-xs text-muted-foreground">{t("showOnKojaHint")}</span>
+              </span>
+              <input
+                type="checkbox"
+                checked={showOnKoja}
+                onChange={(e) => {
+                  const v = e.target.checked;
+                  setShowOnKoja(v);
+                  // Persist immediately (pass the new value to avoid stale state).
+                  saveMutation.mutate({ showOnKoja: v });
+                }}
+                className="h-5 w-5 shrink-0 cursor-pointer accent-[#0F6E56]"
+              />
+            </label>
             <div className="space-y-1">
               <Label>{t("description")}</Label>
               <textarea
@@ -167,7 +189,7 @@ export function CafePublicProfilePanel({ cafeId }: Props) {
                 className="w-full resize-none rounded-lg border border-border/80 bg-white px-3 py-2 text-sm focus:outline-none focus:ring-1 focus:ring-[#0F6E56]"
               />
             </div>
-            <SaveButton saving={saveMutation.isPending} saved={saved} onSave={() => saveMutation.mutate()} t={t} />
+            <SaveButton saving={saveMutation.isPending} saved={saved} onSave={() => saveMutation.mutate(undefined)} t={t} />
           </CardContent>
         </Card>
       )}
@@ -276,7 +298,7 @@ export function CafePublicProfilePanel({ cafeId }: Props) {
                 );
               })}
             </div>
-            <SaveButton saving={saveMutation.isPending} saved={saved} onSave={() => saveMutation.mutate()} t={t} />
+            <SaveButton saving={saveMutation.isPending} saved={saved} onSave={() => saveMutation.mutate(undefined)} t={t} />
           </CardContent>
         </Card>
       )}
@@ -307,7 +329,7 @@ export function CafePublicProfilePanel({ cafeId }: Props) {
                 dir="ltr"
               />
             </div>
-            <SaveButton saving={saveMutation.isPending} saved={saved} onSave={() => saveMutation.mutate()} t={t} />
+            <SaveButton saving={saveMutation.isPending} saved={saved} onSave={() => saveMutation.mutate(undefined)} t={t} />
           </CardContent>
         </Card>
       )}