* feat: add stable MT5Client public API and infrastructure layer
Introduce a reusable public API for downstream trading applications:
- MT5Client as the primary client abstraction with order_check/order_send
- schemas module with DataKind contracts, validation, and normalization
- converters, exceptions, retry, and storage facade modules
- CLI order commands now route through MT5Client
- connected_client made public; retry logic centralized
- Contract tests for API surface, schemas, and storage round-trips
- README and docs updated with Python API usage examples
Co-authored-by: Daichi Narushima <dceoy@users.noreply.github.com>
* fix: correct time coercion, broker-safe symbols, and execution docs
- Normalize MT5 time columns with correct second/millisecond units
- Coerce all present known MT5 time fields, including optional order times
- Preserve broker symbol casing in normalize_symbol()
- Document order_send() as a live execution primitive with clear scope boundaries
- Add contract tests for timestamp and symbol normalization behavior
Co-authored-by: Daichi Narushima <dceoy@users.noreply.github.com>
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Co-authored-by: Cursor Agent <cursoragent@cursor.com>
Co-authored-by: Daichi Narushima <dceoy@users.noreply.github.com>
Daichi Narushima