docs: add 2026-10-01 correctness news

README.md

@@ -52,15 +52,17 @@
 
 > ⚠️ **Security warning:** The X account `VibeTrading_HKU`, Virtuals project `101845`, and token contract `0x640BDBF77b6447E8b7DB7894cED84BD1c40571f4` are not official Vibe-Trading assets. We have never launched or endorsed any token or memecoin. Do not buy, connect a wallet, or sign anything. [Details](SECURITY.md#official-channels--impersonation).
 
+- **2026-10-01** ✅ **Data correctness and reproducible backtests**: A-share adjustment conversion now refuses ambiguous one-bar edge cases ([#1551](https://github.com/HKUDS/Vibe-Trading/pull/1551)); Southbound Eastmoney amounts are scaled from million HKD and rejected responses no longer look empty ([#1486](https://github.com/HKUDS/Vibe-Trading/pull/1486)); Northbound fallback data distinguishes post-2024-08-19 turnover from net flow ([#1484](https://github.com/HKUDS/Vibe-Trading/pull/1484)); Binance-only unpriced positions are marked incomplete without penalising other brokers ([#1505](https://github.com/HKUDS/Vibe-Trading/pull/1505)); and backtest run cards record model provenance and warn when the training cutoff is unknown or outside the test window ([#1618](https://github.com/HKUDS/Vibe-Trading/pull/1618), closes [#1613](https://github.com/HKUDS/Vibe-Trading/issues/1613)).
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 - **2026-09-30** 🛠️ **Feishu in the Web UI, a momentum factor that read today's price, and a profit factor for runs that never lost**: Feishu joins the guided channel setup, with a standalone connection test and a hot reload that closes the old WebSocket ([#1572](https://github.com/HKUDS/Vibe-Trading/pull/1572)). `academic_carhart_mom` subtracted the 1-month return from the 12-month one, so it moved with today's close; it is now the return from 12 months ago to 1 month ago ([#1578](https://github.com/HKUDS/Vibe-Trading/pull/1578)). A run with no losing trade reports its profit factor as undefined instead of 0.0, which ranked it last ([#1602](https://github.com/HKUDS/Vibe-Trading/pull/1602)). Stooq's anti-bot page now stops every later request in the process, not just the log line ([#1637](https://github.com/HKUDS/Vibe-Trading/pull/1637)); MCP tool results reach the agent once instead of up to four times ([#1634](https://github.com/HKUDS/Vibe-Trading/pull/1634)); and the first piece of `loop.py` moves into its own module ([#1636](https://github.com/HKUDS/Vibe-Trading/pull/1636)).
 
 - **2026-09-29** 🚀 **v0.1.16 released** ([Release notes](https://github.com/HKUDS/Vibe-Trading/releases/tag/v0.1.16), `pip install -U vibe-trading-ai`): 492 commits and 116 merged pull requests since 0.1.15, from 16 contributors. **The theme of this cycle is a number that can show where it came from.** The grounding gate no longer guesses what a number is from the words around it: the model declares each figure's role (observed, derived, proposed, cited or count), the gate checks it against the session's tool evidence, and a figure that fails is cut instead of the whole answer being refused. A backtest's own output — Sortino, turnover, weights and Monte Carlo p-values, not only Sharpe — now grounds the report written about it, and run cards cite a metric only where the saved CSV agrees. Long research runs keep what they fetched: compaction follows each model's real context window instead of a fixed 40K estimate. The missing-data sweep reached 59 more alphas. **Fixed in this release, from a user's report:** failed runs keep their steps and the stop message names the call that produced nothing; `read_file` says where it may read instead of letting the model guess paths until the no-progress stop; on Codex, mid-run instructions no longer replace the system prompt, reasoning carries between turns and the default model is `gpt-6-sol`; and `get_market_data` asks for `AAPL.US` rather than returning empty data for a bare US ticker. **New:** Argentina (BYMA), weekly and monthly bars, Bahasa Indonesia, Gildata, OpenCode, Email and WebSocket channels, IM channel setup in the Web UI, and KIS, Upbit, Toss Securities and Scalable Capital connectors, 18 brokers in all. Thanks [@Shizoqua](https://github.com/Shizoqua), [@zeus229](https://github.com/zeus229), [@cgycorey](https://github.com/cgycorey), [@shadowinlife](https://github.com/shadowinlife), [@lorenzozanee](https://github.com/lorenzozanee), [@he-yufeng](https://github.com/he-yufeng), [@chiww](https://github.com/chiww), [@as950118](https://github.com/as950118), [@woshi77777stars](https://github.com/woshi77777stars), [@Yoruxyv](https://github.com/Yoruxyv), [@sambazhu](https://github.com/sambazhu), [@0xouzm](https://github.com/0xouzm), [@tingkk](https://github.com/tingkk), [@tonydo](https://github.com/tonydo), [@alanwilhelm](https://github.com/alanwilhelm) and [@modelpath-dev](https://github.com/modelpath-dev)!
 
-- **2026-09-28** 🛠️ **Source health and connector transparency**: scheduled public-source canaries report outages and data drift with bounded, credential-free probes ([#1627](https://github.com/HKUDS/Vibe-Trading/pull/1627)); BaoStock socket requests now have deadlines and serialize concurrent sessions ([#1615](https://github.com/HKUDS/Vibe-Trading/pull/1615)). Copilot credential lookups refresh after a short cache TTL ([#1619](https://github.com/HKUDS/Vibe-Trading/pull/1619)). A generated broker matrix preserves each profile’s paper/live permissions and labels declared capabilities separately from runtime verification ([#1629](https://github.com/HKUDS/Vibe-Trading/pull/1629)). **Grounding and MT5 follow-up:** explicit evidence symbols and exact field references are preserved; localized grouped figures retain the existing numeric tolerance ([#1584](https://github.com/HKUDS/Vibe-Trading/pull/1584), [#1586](https://github.com/HKUDS/Vibe-Trading/pull/1586), [#1588](https://github.com/HKUDS/Vibe-Trading/pull/1588)). Text-only correction attempts are bounded ([#1600](https://github.com/HKUDS/Vibe-Trading/pull/1600)). MT5 search uses the selected terminal and refuses ambiguous broker aliases; backtest sandboxes receive only validated attachment settings ([#1597](https://github.com/HKUDS/Vibe-Trading/pull/1597), [#1598](https://github.com/HKUDS/Vibe-Trading/pull/1598)).
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 <details>
 <summary>Earlier news</summary>
 
+- **2026-09-28** 🛠️ **Source health and connector transparency**: scheduled public-source canaries report outages and data drift with bounded, credential-free probes ([#1627](https://github.com/HKUDS/Vibe-Trading/pull/1627)); BaoStock socket requests now have deadlines and serialize concurrent sessions ([#1615](https://github.com/HKUDS/Vibe-Trading/pull/1615)). Copilot credential lookups refresh after a short cache TTL ([#1619](https://github.com/HKUDS/Vibe-Trading/pull/1619)). A generated broker matrix preserves each profile’s paper/live permissions and labels declared capabilities separately from runtime verification ([#1629](https://github.com/HKUDS/Vibe-Trading/pull/1629)). **Grounding and MT5 follow-up:** explicit evidence symbols and exact field references are preserved; localized grouped figures retain the existing numeric tolerance ([#1584](https://github.com/HKUDS/Vibe-Trading/pull/1584), [#1586](https://github.com/HKUDS/Vibe-Trading/pull/1586), [#1588](https://github.com/HKUDS/Vibe-Trading/pull/1588)). Text-only correction attempts are bounded ([#1600](https://github.com/HKUDS/Vibe-Trading/pull/1600)). MT5 search uses the selected terminal and refuses ambiguous broker aliases; backtest sandboxes receive only validated attachment settings ([#1597](https://github.com/HKUDS/Vibe-Trading/pull/1597), [#1598](https://github.com/HKUDS/Vibe-Trading/pull/1598)).
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 - **2026-09-27** 🛠️ **Verifiable run cards and safer research**: Run cards now show hashed backtest execution records and verified metric-to-CSV references in JSON, Markdown and Run Detail ([#1612](https://github.com/HKUDS/Vibe-Trading/pull/1612)). GTJA high/low recency factors use the correct day count and consistent tie handling ([#1604](https://github.com/HKUDS/Vibe-Trading/pull/1604)); India short covers check the buy-side circuit band ([#1608](https://github.com/HKUDS/Vibe-Trading/pull/1608)). Token usage remains readable without exempting arbitrary credential strings ([#1606](https://github.com/HKUDS/Vibe-Trading/pull/1606)), malformed MCP schemas retain their object properties ([#1607](https://github.com/HKUDS/Vibe-Trading/pull/1607)), and immediate-order goal checks preserve research questions ([#1605](https://github.com/HKUDS/Vibe-Trading/pull/1605)). Setup documentation now correctly identifies OpenRouter as the shipped default ([#1609](https://github.com/HKUDS/Vibe-Trading/issues/1609)).
 
 - **2026-09-26** 🛠️ **More reliable indicators and trading limits**: Technical indicators retain their observation date and can reuse results lost during conversation compaction ([#1590](https://github.com/HKUDS/Vibe-Trading/pull/1590), [#1601](https://github.com/HKUDS/Vibe-Trading/pull/1601)). All five Qlib158 WVMA windows now use absolute returns in the numerator ([#1594](https://github.com/HKUDS/Vibe-Trading/pull/1594)); Benford checks preserve the correct leading digit at numeric boundaries ([#1591](https://github.com/HKUDS/Vibe-Trading/pull/1591)). An explicitly zero exposure limit stays zero ([#1593](https://github.com/HKUDS/Vibe-Trading/pull/1593)), and Dhan paper orders reject fractional or invalid quantities without rounding away input precision ([#1595](https://github.com/HKUDS/Vibe-Trading/pull/1595)). Invalid optional numeric environment variables fall back to defaults while explicit configuration constraints remain enforced ([#1592](https://github.com/HKUDS/Vibe-Trading/pull/1592)). Runtime triggers keep the correct field defaults and subclass factory behavior ([#1599](https://github.com/HKUDS/Vibe-Trading/pull/1599)).