ponjika 2.0.0

Typed Bangla civil dates, bidirectional conversion, parsing, formatting, arithmetic and recurring events for pure Dart.

2.0.0

• Extract a pure Dart core and document bd-revised-2019-v1 civil rules.
• Correct day boundaries, month lengths and Falgun leap-year selection.
• Add immutable dates, comparison, ranges, arithmetic and reverse conversion.
• Add strict formatting/parsing and independent language/numeral selection.
• Add injectable clocks, explicit timestamp conversion and month grids.
• Add annual events with skip/clamp/reject policies.
• Add generated JSON DTO serialization with ruleset validation.
• Retain legacy facade with documented major-version behavior corrections.
• Expand exact-output, boundary and round-trip tests.

1.1.0

Original uploaded release; date formatting and season emoji helpers.