Kunthawat Greethong 5516fc51a0 [verified] LONG/SHORT/NEUTRAL via quartile + market-regime gate (user choice B) ...

- Signal threshold no longer hardcoded 0.15: now quartile-based (LONG>=Q3, SHORT<=Q1, else NEUTRAL) over the whole SET50 board, recomputed each refresh.
- Market-regime gate: if >=4 themes have negative surprise -> risk-off bear regime -> tighten LONG bar + pull more into SHORT/avoid, so 'best of a falling board' isn't LONG (answers user 'ตลาดตกควรขายทิ้ง').
- SHORT semantics (user confirmed) = 'หลีก/ไม่ถือ' -> cash, NOT short-selling.
- reason_codes + regime now on factor rows (transparent).
- Verified: LONG 12 / SHORT 12 / NEUTRAL 25 in normal regime (Q1=-0.044 Q3=0.407).
- Fixed test_factors_endpoint_signal_join (was asserting AOT LONG from old tourism). Full suite 202 OK.

2026-08-26 15:34:31 +07:00

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