Initial commit: Voiced invoice desktop app

Offline-first invoicing app for Test Vendor, built by Bongbetic.

- Tauri v2 (Rust) + React/TypeScript + IBM Carbon Design System UI
- SQLite (rusqlite) storage with a persistent invoice-number series
- Guided first-run setup, pre-filled vendor/bank details
- Fixed-amount or rate x quantity line items (per sec/min/hour/session/unit)
- GST as CGST+SGST or IGST, Indian amount-in-words
- Optional signature, with a computer-generated note as fallback
- Print-ready PDF export via @react-pdf/renderer
- Windows cross-compile via cargo-xwin (NSIS installer)

Co-authored-by: CommandCodeBot <noreply@commandcode.ai>

src/lib/types.ts

@@ -0,0 +1,168 @@
+export type TaxType = "none" | "cgst_sgst" | "igst";
+export type LineMode = "fixed" | "rate";
+export type LineUnit = "second" | "minute" | "hour" | "session" | "unit";
+
+export interface Settings {
+  vendorName: string;
+  vendorAddress: string;
+  vendorEmail: string;
+  vendorPhone: string;
+  vendorPan: string;
+  vendorGstin: string;
+  vendorStateCode: string;
+  logoPath: string | null;
+  signaturePath: string | null;
+  defaultBankId: number | null;
+  defaultTaxRate: number;
+  defaultTaxType: TaxType;
+  paymentTermsDays: number;
+  currency: string;
+  onboarded: boolean;
+  theme: string;
+}
+
+export interface BankAccount {
+  id: number | null;
+  label: string;
+  bankName: string;
+  accountName: string;
+  accountNo: string;
+  branch: string;
+  ifsc: string;
+  isDefault: boolean;
+}
+
+export interface InvoiceSeries {
+  id: number;
+  prefix: string;
+  padding: number;
+  nextNumber: number;
+  isActive: boolean;
+  createdAt: string;
+  nextInvoiceNumber: string;
+}
+
+export interface Client {
+  id: number | null;
+  name: string;
+  address: string;
+  gstin: string;
+  stateCode: string;
+  poNumber: string;
+  createdAt: string;
+}
+
+export interface InvoiceItem {
+  id?: number | null;
+  description: string;
+  mode: LineMode;
+  rate: number;
+  unit: LineUnit;
+  quantity: number;
+  amount: number;
+  sortOrder: number;
+}
+
+export interface InvoiceInput {
+  invoiceDate: string;
+  dueDate: string;
+  clientId: number | null;
+  clientName: string;
+  clientAddress: string;
+  clientGstin: string;
+  poNumber: string;
+  placeOfSupplyStateCode: string;
+  subtotal: number;
+  discount: number;
+  taxType: TaxType;
+  taxRate: number;
+  cgstAmount: number;
+  sgstAmount: number;
+  igstAmount: number;
+  total: number;
+  amountInWords: string;
+  bankAccountId: number | null;
+  bankSnapshot: string;
+  signaturePath: string | null;
+  notes: string;
+  saveClient: boolean;
+  items: InvoiceItem[];
+}
+
+export interface Invoice extends Omit<InvoiceInput, "saveClient"> {
+  id: number;
+  number: string;
+  seriesId: number | null;
+  status: string;
+  createdAt: string;
+  updatedAt: string;
+  items: InvoiceItem[];
+}
+
+export interface InvoiceSummary {
+  id: number;
+  number: string;
+  invoiceDate: string;
+  dueDate: string;
+  clientName: string;
+  total: number;
+  status: string;
+  createdAt: string;
+}
+
+export const EMPTY_ITEM: InvoiceItem = {
+  description: "",
+  mode: "fixed",
+  rate: 0,
+  unit: "unit",
+  quantity: 1,
+  amount: 0,
+  sortOrder: 0,
+};
+
+export const INDIAN_STATES: { code: string; name: string }[] = [
+  { code: "01", name: "Jammu & Kashmir" },
+  { code: "02", name: "Himachal Pradesh" },
+  { code: "03", name: "Punjab" },
+  { code: "04", name: "Chandigarh" },
+  { code: "05", name: "Uttarakhand" },
+  { code: "06", name: "Haryana" },
+  { code: "07", name: "Delhi" },
+  { code: "08", name: "Rajasthan" },
+  { code: "09", name: "Uttar Pradesh" },
+  { code: "10", name: "Bihar" },
+  { code: "11", name: "Sikkim" },
+  { code: "12", name: "Sampleachal Pradesh" },
+  { code: "13", name: "Nagaland" },
+  { code: "14", name: "Manipur" },
+  { code: "15", name: "Mizoram" },
+  { code: "16", name: "Tripura" },
+  { code: "17", name: "Meghalaya" },
+  { code: "18", name: "Assam" },
+  { code: "19", name: "West Bengal" },
+  { code: "20", name: "Jharkhand" },
+  { code: "21", name: "Odisha" },
+  { code: "22", name: "Chhattisgarh" },
+  { code: "23", name: "Madhya Pradesh" },
+  { code: "24", name: "Gujarat" },
+  { code: "26", name: "Dadra & Nagar Haveli and Daman & Diu" },
+  { code: "27", name: "Maharashtra" },
+  { code: "29", name: "Karnataka" },
+  { code: "30", name: "Goa" },
+  { code: "31", name: "Lakshadweep" },
+  { code: "32", name: "Kerala" },
+  { code: "33", name: "Tamil Nadu" },
+  { code: "34", name: "Puducherry" },
+  { code: "35", name: "Andaman & Nicobar Islands" },
+  { code: "36", name: "Telangana" },
+  { code: "37", name: "Andhra Pradesh" },
+  { code: "38", name: "Ladakh" },
+];
+
+export const UNIT_LABELS: Record<LineUnit, string> = {
+  second: "per second",
+  minute: "per minute",
+  hour: "per hour",
+  session: "per session",
+  unit: "per unit",
+};