Add resilient multi-account orchestration helpers (#22)
* Add SDK orchestration helpers for resilient multi-account collection
- collect_latest_rates_for_accounts_with_retries(): exponential-backoff
retries around collect_latest_rates_for_accounts(), retrying only
Mt5TradingError/Mt5RuntimeError and re-raising on exhaustion.
- resolve_account_spec()/resolve_account_specs() and
substitute_env_placeholders(): merge explicit overrides over AccountSpec
fields and expand ${ENV_VAR} placeholders, raising ValueError on missing
variables.
- ThrottledHistoryUpdater: monotonic-clock throttled wrapper around
update_history() with should_update()/update() and opt-in suppress_errors.
- load_rate_series_by_granularity(): rate-series loader keyed by
(symbol | None, granularity_name).
- Export new APIs, add unit tests (100% coverage), and document in README
and docs/api.
* chore: bump version from 0.5.1 to 0.5.3 (#24)
Co-authored-by: Cursor Agent <cursoragent@cursor.com>
Co-authored-by: Daichi Narushima <dceoy@users.noreply.github.com>
* fix: resolve leftover merge conflict markers in version files
Co-authored-by: Daichi Narushima <dceoy@users.noreply.github.com>
* fix: address PR review feedback on SDK orchestration helpers
- Use single-pass env substitution to avoid TOCTOU KeyError
- Apply backoff_base to all retry delays (backoff_base ** (attempt + 1))
- Preserve integer logins in resolve_account_spec; hide login in repr
- Fix docs examples (env ordering, while True loop, backoff comment)
- Parametrize suppress_errors tests for MT5 and SQLite errors
Co-authored-by: Daichi Narushima <dceoy@users.noreply.github.com>
---------
Co-authored-by: Claude <noreply@anthropic.com>
Co-authored-by: Cursor Agent <cursoragent@cursor.com>
Co-authored-by: Daichi Narushima <dceoy@users.noreply.github.com>
Daichi Narushima
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