Fetch available currencies from LNbits core API

- Call /api/v1/currencies endpoint on LNbits core (not nostrmarket extension)
- Ensure 'sat' is always first in the currency list and used as default
- Add loading state for currency dropdown
- Add key prop to Select component for proper reactivity

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

src/modules/market/components/CreateStoreDialog.vue

@@ -47,10 +47,14 @@
           <FormField v-slot="{ componentField }" name="currency">
             <FormItem>
               <FormLabel>Currency *</FormLabel>
-              <Select :disabled="isCreating" v-bind="componentField">
+              <Select
+                :key="`currency-select-${availableCurrencies.length}`"
+                :disabled="isCreating || isLoadingCurrencies"
+                v-bind="componentField"
+              >
                 <FormControl>
                   <SelectTrigger class="w-full">
-                    <SelectValue placeholder="Select currency" />
+                    <SelectValue :placeholder="isLoadingCurrencies ? 'Loading...' : 'Select currency'" />
                   </SelectTrigger>
                 </FormControl>
                 <SelectContent>
@@ -275,6 +279,7 @@ const toast = useToast()
 // Local state
 const isCreating = ref(false)
 const createError = ref<string | null>(null)
+const isLoadingCurrencies = ref(false)
 const availableCurrencies = ref<string[]>(['sat'])
 const availableZones = ref<Zone[]>([])
 const showNewZoneForm = ref(false)
@@ -331,11 +336,27 @@ const onSubmit = form.handleSubmit(async (values) => {
 
 // Methods
 const loadAvailableCurrencies = async () => {
+  isLoadingCurrencies.value = true
   try {
     const currencies = await nostrmarketAPI.getCurrencies()
+    if (currencies.length > 0) {
+      // Ensure 'sat' is always first in the list
+      const satIndex = currencies.indexOf('sat')
+      if (satIndex === -1) {
+        // Add 'sat' at the beginning if not present
+        availableCurrencies.value = ['sat', ...currencies]
+      } else if (satIndex > 0) {
+        // Move 'sat' to the beginning if present but not first
+        const withoutSat = currencies.filter(c => c !== 'sat')
+        availableCurrencies.value = ['sat', ...withoutSat]
+      } else {
         availableCurrencies.value = currencies
+      }
+    }
   } catch (error) {
     console.error('Failed to load currencies:', error)
+  } finally {
+    isLoadingCurrencies.value = false
   }
 }
 

src/modules/market/services/nostrmarketAPI.ts

@@ -371,30 +371,35 @@ export class NostrmarketAPI extends BaseService {
   }
 
   /**
-   * Get available currencies
+   * Get available currencies from the LNbits core API
+   * This endpoint returns currencies allowed by the server configuration
    */
   async getCurrencies(): Promise<string[]> {
-    const baseCurrencies = ['sat']
+    // Call the LNbits core API directly (not under /nostrmarket)
+    const url = `${this.baseUrl}/api/v1/currencies`
 
     try {
-      const apiCurrencies = await this.request<string[]>(
-        '/api/v1/currencies',
-        '', // No authentication needed for currencies endpoint
-        { method: 'GET' }
-      )
+      const response = await fetch(url, {
+        method: 'GET',
+        headers: { 'Content-Type': 'application/json' }
+      })
 
-      if (apiCurrencies && Array.isArray(apiCurrencies)) {
-        // Combine base currencies with API currencies, removing duplicates
-        const allCurrencies = [...baseCurrencies, ...apiCurrencies.filter(currency => !baseCurrencies.includes(currency))]
-        this.debug('Retrieved currencies:', { count: allCurrencies.length, currencies: allCurrencies })
-        return allCurrencies
+      if (!response.ok) {
+        throw new Error(`Failed to fetch currencies: ${response.status}`)
       }
 
-      this.debug('No API currencies returned, using base currencies only')
-      return baseCurrencies
+      const apiCurrencies = await response.json()
+
+      if (apiCurrencies && Array.isArray(apiCurrencies)) {
+        this.debug('Retrieved currencies from LNbits core:', { count: apiCurrencies.length, currencies: apiCurrencies })
+        return apiCurrencies
+      }
+
+      this.debug('No currencies returned from server, using default')
+      return ['sat']
     } catch (error) {
-      this.debug('Failed to get currencies, falling back to base currencies:', error)
-      return baseCurrencies
+      this.debug('Failed to get currencies, using default:', error)
+      return ['sat']
     }
   }