Update TransactionsPage to match castle extension date range API changes

Synchronized TransactionsPage with castle LNbits extension API updates that introduced custom date range filtering.

**API Changes (ExpensesAPI.ts):**
- Updated `getUserTransactions()` to support `start_date` and `end_date` parameters (YYYY-MM-DD format)
- Custom date range takes precedence over preset days parameter
- Updated comment: default changed from 5 to 15 days, options now 15/30/60 (removed 5 and 90)

**UI Changes (TransactionsPage.vue):**
- **New defaults**: Changed default from 5 days to 15 days
- **New preset options**: 15, 30, 60 days (removed 5 and 90 day options)
- **Custom date range**: Added "Custom" option with date picker inputs
  - From/To date inputs using native HTML5 date picker
  - Apply button to load transactions for custom range
  - Auto-clears custom dates when switching back to preset days
- **State management**:
  - `dateRangeType` ref supports both numbers (15, 30, 60) and 'custom' string
  - `customStartDate` and `customEndDate` refs for custom date range
- **Smart loading**: Only loads transactions after user provides both dates and clicks Apply

**Priority Logic:**
- Custom date range (start_date + end_date) takes precedence
- Falls back to preset days if custom not selected
- Defaults to 15 days if custom selected but dates not provided

Matches castle extension implementation exactly (see castle extension git diff in fava_client.py, views_api.py, and static/js/index.js).

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

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

src/modules/expenses/services/ExpensesAPI.ts

@@ -404,7 +404,9 @@ export class ExpensesAPI extends BaseService {
     options?: {
       limit?: number
       offset?: number
-      days?: number // 5, 30, 60, or 90
+      days?: number // 15, 30, or 60 (default: 15)
+      start_date?: string // ISO format: YYYY-MM-DD
+      end_date?: string // ISO format: YYYY-MM-DD
       filter_user_id?: string
       filter_account_type?: string
     }
@@ -415,7 +417,15 @@ export class ExpensesAPI extends BaseService {
       // Add query parameters
       if (options?.limit) url.searchParams.set('limit', String(options.limit))
       if (options?.offset) url.searchParams.set('offset', String(options.offset))
-      if (options?.days) url.searchParams.set('days', String(options.days))
+
+      // Custom date range takes precedence over days
+      if (options?.start_date && options?.end_date) {
+        url.searchParams.set('start_date', options.start_date)
+        url.searchParams.set('end_date', options.end_date)
+      } else if (options?.days) {
+        url.searchParams.set('days', String(options.days))
+      }
+
       if (options?.filter_user_id)
         url.searchParams.set('filter_user_id', options.filter_user_id)
       if (options?.filter_account_type)

src/modules/expenses/views/TransactionsPage.vue

@@ -10,6 +10,7 @@ import FuzzySearch from '@/components/ui/fuzzy-search/FuzzySearch.vue'
 
 import { Button } from '@/components/ui/button'
 import { Badge } from '@/components/ui/badge'
+import { Input } from '@/components/ui/input'
 import {
   CheckCircle2,
   Clock,
@@ -25,7 +26,9 @@ const expensesAPI = injectService<ExpensesAPI>(SERVICE_TOKENS.EXPENSES_API)
 
 const transactions = ref<Transaction[]>([])
 const isLoading = ref(false)
-const selectedDays = ref(5)
+const dateRangeType = ref<number | 'custom'>(15) // 15, 30, 60, or 'custom'
+const customStartDate = ref<string>('')
+const customEndDate = ref<string>('')
 
 const walletKey = computed(() => user.value?.wallets?.[0]?.inkey)
 
@@ -62,12 +65,12 @@ function handleSearchResults(results: Transaction[]) {
   searchResults.value = results
 }
 
-// Day filter options
+// Date range options (matching castle LNbits extension)
-const dayOptions = [
+const dateRangeOptions = [
-  { label: '5 days', value: 5 },
+  { label: '15 days', value: 15 },
   { label: '30 days', value: 30 },
   { label: '60 days', value: 60 },
-  { label: '90 days', value: 90 }
+  { label: 'Custom', value: 'custom' as const }
 ]
 
 // Format date for display
@@ -113,12 +116,27 @@ async function loadTransactions() {
 
   isLoading.value = true
   try {
-    const response = await expensesAPI.getUserTransactions(walletKey.value, {
+    // Build query params - custom date range takes precedence over preset days
+    const params: any = {
       limit: 1000, // Load all transactions (no pagination needed)
-      offset: 0,
+      offset: 0
-      days: selectedDays.value
+    }
-    })
 
+    if (dateRangeType.value === 'custom') {
+      // Use custom date range
+      if (customStartDate.value && customEndDate.value) {
+        params.start_date = customStartDate.value
+        params.end_date = customEndDate.value
+      } else {
+        // Default to 15 days if custom selected but dates not provided
+        params.days = 15
+      }
+    } else {
+      // Use preset days
+      params.days = dateRangeType.value
+    }
+
+    const response = await expensesAPI.getUserTransactions(walletKey.value, params)
     transactions.value = response.entries
   } catch (error) {
     console.error('Failed to load transactions:', error)
@@ -130,10 +148,29 @@ async function loadTransactions() {
   }
 }
 
-// Change day filter
+// Handle date range type change
-function changeDayFilter(days: number) {
+function onDateRangeTypeChange(value: number | 'custom') {
-  selectedDays.value = days
+  dateRangeType.value = value
-  loadTransactions()
+
+  if (value !== 'custom') {
+    // Clear custom dates when switching to preset days
+    customStartDate.value = ''
+    customEndDate.value = ''
+    // Load transactions immediately with preset days
+    loadTransactions()
+  }
+  // If switching to custom, wait for user to provide dates
+}
+
+// Apply custom date range
+function applyCustomDateRange() {
+  if (customStartDate.value && customEndDate.value) {
+    loadTransactions()
+  } else {
+    toast.error('Invalid date range', {
+      description: 'Please select both start and end dates'
+    })
+  }
 }
 
 onMounted(() => {
@@ -163,20 +200,53 @@ onMounted(() => {
           </Button>
         </div>
 
-        <!-- Compact Controls Row -->
+        <!-- Date Range Controls -->
-        <div class="flex items-center gap-2 flex-wrap">
+        <div class="flex flex-col gap-3">
-          <Calendar class="h-4 w-4 text-muted-foreground" />
+          <!-- Preset Days / Custom Toggle -->
-          <Button
+          <div class="flex items-center gap-2 flex-wrap">
-            v-for="option in dayOptions"
+            <Calendar class="h-4 w-4 text-muted-foreground" />
-            :key="option.value"
+            <Button
-            :variant="selectedDays === option.value ? 'default' : 'outline'"
+              v-for="option in dateRangeOptions"
-            size="sm"
+              :key="option.value"
-            class="h-8 px-3 text-xs"
+              :variant="dateRangeType === option.value ? 'default' : 'outline'"
-            @click="changeDayFilter(option.value)"
+              size="sm"
-            :disabled="isLoading"
+              class="h-8 px-3 text-xs"
-          >
+              @click="onDateRangeTypeChange(option.value)"
-            {{ option.label }}
+              :disabled="isLoading"
-          </Button>
+            >
+              {{ option.label }}
+            </Button>
+          </div>
+
+          <!-- Custom Date Range Inputs -->
+          <div v-if="dateRangeType === 'custom'" class="flex items-end gap-2 flex-wrap">
+            <div class="flex flex-col gap-1">
+              <label class="text-xs text-muted-foreground">From:</label>
+              <Input
+                type="date"
+                v-model="customStartDate"
+                class="h-8 text-xs"
+                :disabled="isLoading"
+              />
+            </div>
+            <div class="flex flex-col gap-1">
+              <label class="text-xs text-muted-foreground">To:</label>
+              <Input
+                type="date"
+                v-model="customEndDate"
+                class="h-8 text-xs"
+                :disabled="isLoading"
+              />
+            </div>
+            <Button
+              size="sm"
+              class="h-8 px-3 text-xs"
+              @click="applyCustomDateRange"
+              :disabled="isLoading || !customStartDate || !customEndDate"
+            >
+              Apply
+            </Button>
+          </div>
         </div>
       </div>
     </div>