Add feature batch 2, subscription/recurring sync, smooth charts, and app icon

- Implement subscriptions view with bidirectional recurring transaction sync
- Add cascade delete/pause/resume between subscriptions and recurring
- Fix foreign key constraints when deleting recurring transactions
- Add cross-view instant refresh via callback pattern
- Replace Bezier chart smoothing with Fritsch-Carlson monotone Hermite interpolation
- Smooth budget sparklines using shared monotone_subdivide function
- Add vertical spacing to budget rows
- Add app icon (receipt on GNOME blue) in all sizes for desktop, web, and AppImage
- Add calendar, credit cards, forecast, goals, insights, and wishlist views
- Add date picker, numpad, quick-add, category combo, and edit dialog components
- Add import/export for CSV, JSON, OFX, QIF formats
- Add NLP transaction parsing, OCR receipt scanning, expression evaluator
- Add notification support, Sankey chart, tray icon
- Add demo data seeder with full DB wipe
- Expand database schema with subscriptions, goals, credit cards, and more

outlay-core/src/models.rs

@@ -78,6 +78,7 @@ pub struct Category {
     pub transaction_type: TransactionType,
     pub is_default: bool,
     pub sort_order: i32,
+    pub parent_id: Option<i64>,
 }
 
 #[derive(Debug, Clone)]
@@ -87,6 +88,7 @@ pub struct NewCategory {
     pub color: Option<String>,
     pub transaction_type: TransactionType,
     pub sort_order: i32,
+    pub parent_id: Option<i64>,
 }
 
 #[derive(Debug, Clone, Serialize, Deserialize)]
@@ -101,6 +103,7 @@ pub struct Transaction {
     pub date: NaiveDate,
     pub created_at: String,
     pub recurring_id: Option<i64>,
+    pub payee: Option<String>,
 }
 
 #[derive(Debug, Clone)]
@@ -113,6 +116,7 @@ pub struct NewTransaction {
     pub note: Option<String>,
     pub date: NaiveDate,
     pub recurring_id: Option<i64>,
+    pub payee: Option<String>,
 }
 
 #[derive(Debug, Clone, Serialize, Deserialize)]
@@ -121,6 +125,7 @@ pub struct Budget {
     pub category_id: i64,
     pub amount: f64,
     pub month: String,
+    pub rollover: bool,
 }
 
 #[derive(Debug, Clone, Serialize, Deserialize)]
@@ -136,6 +141,10 @@ pub struct RecurringTransaction {
     pub end_date: Option<NaiveDate>,
     pub last_generated: Option<NaiveDate>,
     pub active: bool,
+    pub resume_date: Option<NaiveDate>,
+    pub is_bill: bool,
+    pub reminder_days: i32,
+    pub subscription_id: Option<i64>,
 }
 
 #[derive(Debug, Clone)]
@@ -148,6 +157,9 @@ pub struct NewRecurringTransaction {
     pub frequency: Frequency,
     pub start_date: NaiveDate,
     pub end_date: Option<NaiveDate>,
+    pub is_bill: bool,
+    pub reminder_days: i32,
+    pub subscription_id: Option<i64>,
 }
 
 #[derive(Debug, Clone, Serialize, Deserialize)]
@@ -158,6 +170,240 @@ pub struct ExchangeRate {
     pub fetched_at: String,
 }
 
+#[derive(Debug, Clone, Serialize, Deserialize)]
+pub struct Tag {
+    pub id: i64,
+    pub name: String,
+}
+
+#[derive(Debug, Clone, Serialize, Deserialize)]
+pub struct Split {
+    pub id: i64,
+    pub transaction_id: i64,
+    pub category_id: i64,
+    pub amount: f64,
+    pub note: Option<String>,
+}
+
+#[derive(Debug, Clone, Serialize, Deserialize)]
+pub struct TransactionTemplate {
+    pub id: i64,
+    pub name: String,
+    pub amount: Option<f64>,
+    pub transaction_type: TransactionType,
+    pub category_id: i64,
+    pub currency: String,
+    pub payee: Option<String>,
+    pub note: Option<String>,
+    pub tags: Option<String>,
+    pub sort_order: i32,
+}
+
+#[derive(Debug, Clone, Serialize, Deserialize)]
+pub struct CategorizeRule {
+    pub id: i64,
+    pub field: String,
+    pub pattern: String,
+    pub category_id: i64,
+    pub priority: i32,
+}
+
+#[derive(Debug, Clone, Serialize, Deserialize)]
+pub struct SavingsGoal {
+    pub id: i64,
+    pub name: String,
+    pub target: f64,
+    pub saved: f64,
+    pub currency: String,
+    pub deadline: Option<NaiveDate>,
+    pub color: Option<String>,
+    pub icon: Option<String>,
+    pub created_at: String,
+}
+
+#[derive(Debug, Clone, Serialize, Deserialize)]
+pub struct WishlistItem {
+    pub id: i64,
+    pub name: String,
+    pub amount: f64,
+    pub category_id: Option<i64>,
+    pub url: Option<String>,
+    pub note: Option<String>,
+    pub priority: i32,
+    pub purchased: bool,
+    pub created_at: String,
+}
+
+#[derive(Debug, Clone, Serialize, Deserialize)]
+pub struct SubscriptionCategory {
+    pub id: i64,
+    pub name: String,
+    pub icon: Option<String>,
+    pub color: Option<String>,
+    pub sort_order: i32,
+}
+
+#[derive(Debug, Clone, Serialize, Deserialize)]
+pub struct Subscription {
+    pub id: i64,
+    pub name: String,
+    pub amount: f64,
+    pub currency: String,
+    pub frequency: Frequency,
+    pub category_id: i64,
+    pub start_date: NaiveDate,
+    pub next_due: NaiveDate,
+    pub active: bool,
+    pub note: Option<String>,
+    pub url: Option<String>,
+    pub recurring_id: Option<i64>,
+}
+
+#[derive(Debug, Clone)]
+pub struct NewSubscription {
+    pub name: String,
+    pub amount: f64,
+    pub currency: String,
+    pub frequency: Frequency,
+    pub category_id: i64,
+    pub start_date: NaiveDate,
+    pub note: Option<String>,
+    pub url: Option<String>,
+    pub recurring_id: Option<i64>,
+}
+
+#[derive(Debug, Clone)]
+pub struct CreditCard {
+    pub id: i64,
+    pub name: String,
+    pub credit_limit: Option<f64>,
+    pub statement_close_day: i32,
+    pub due_day: i32,
+    pub min_payment_pct: f64,
+    pub current_balance: f64,
+    pub currency: String,
+    pub color: Option<String>,
+    pub active: bool,
+}
+
+#[derive(Debug, Clone)]
+pub struct NewCreditCard {
+    pub name: String,
+    pub credit_limit: Option<f64>,
+    pub statement_close_day: i32,
+    pub due_day: i32,
+    pub min_payment_pct: f64,
+    pub currency: String,
+    pub color: Option<String>,
+}
+
+#[derive(Debug, Clone)]
+pub struct Achievement {
+    pub id: i64,
+    pub name: String,
+    pub description: String,
+    pub earned_at: Option<String>,
+    pub icon: Option<String>,
+}
+
+#[derive(Debug, Clone)]
+pub struct ParsedTransaction {
+    pub amount: f64,
+    pub category_name: Option<String>,
+    pub category_id: Option<i64>,
+    pub note: Option<String>,
+    pub payee: Option<String>,
+    pub transaction_type: TransactionType,
+}
+
+#[derive(Debug, Clone)]
+pub struct SankeyNode {
+    pub label: String,
+    pub value: f64,
+    pub color: (f64, f64, f64),
+    pub y: f64,
+    pub height: f64,
+}
+
+#[derive(Debug, Clone)]
+pub struct SankeyFlow {
+    pub from_idx: usize,
+    pub to_idx: usize,
+    pub value: f64,
+    pub from_y: f64,
+    pub to_y: f64,
+    pub width: f64,
+}
+
+#[derive(Debug, Clone)]
+pub struct SankeyLayout {
+    pub left_nodes: Vec<SankeyNode>,
+    pub right_nodes: Vec<SankeyNode>,
+    pub center_y: f64,
+    pub center_height: f64,
+    pub flows_in: Vec<SankeyFlow>,
+    pub flows_out: Vec<SankeyFlow>,
+    pub net: f64,
+}
+
+#[derive(Debug, Clone)]
+pub struct RecapCategory {
+    pub category_name: String,
+    pub category_icon: Option<String>,
+    pub category_color: Option<String>,
+    pub amount: f64,
+    pub percentage: f64,
+    pub change_pct: Option<f64>,
+}
+
+#[derive(Debug, Clone)]
+pub struct MonthlyRecap {
+    pub total_income: f64,
+    pub total_expenses: f64,
+    pub net: f64,
+    pub transaction_count: i64,
+    pub categories: Vec<RecapCategory>,
+}
+
+#[derive(Debug, Clone, Copy, PartialEq, Eq)]
+pub enum BudgetCycleMode {
+    Calendar,
+    Payday,
+    Rolling,
+}
+
+impl BudgetCycleMode {
+    pub fn as_str(&self) -> &'static str {
+        match self {
+            BudgetCycleMode::Calendar => "calendar",
+            BudgetCycleMode::Payday => "payday",
+            BudgetCycleMode::Rolling => "rolling",
+        }
+    }
+
+    pub fn from_str(s: &str) -> Self {
+        match s {
+            "payday" => BudgetCycleMode::Payday,
+            "rolling" => BudgetCycleMode::Rolling,
+            _ => BudgetCycleMode::Calendar,
+        }
+    }
+}
+
+impl fmt::Display for BudgetCycleMode {
+    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
+        f.write_str(self.as_str())
+    }
+}
+
+#[derive(Debug, Clone)]
+pub struct PdfParsedRow {
+    pub date: Option<NaiveDate>,
+    pub description: String,
+    pub amount: f64,
+    pub is_credit: bool,
+}
+
 #[cfg(test)]
 mod tests {
     use super::*;