Module parser 

UPI/bank payment parsing from notification/SMS text. Rule-based, no AI. Port of lib/core/upi_parser.dart (parseUpiNotification, _cleanMerchant, encodeInboxLine). Covers UPI apps, bank apps, and messaging apps (amount + payment keyword).

Regex notes: every pattern is verbatim from the Dart source wrapped in (?i:...), with mechanical \d→[0-9] / \s→[ \t\n\x0B\f\r] (see non_transaction.rs for why).

Structs

ParsedPayment

A UPI/bank payment parsed from a notification’s text.

Functions

encode_inbox_line

Encodes a raw capture line for the inbox JSONL file.

parse_upi_notification

Parses text into a payment, or None if it isn’t a payment notification (spam, no amount, or no payment verb — e.g. a casual “send me ₹200” chat).