book: fold Q-campaign (exp 33-43) evidence into ledger, claims, and chapters
- EVIDENCE#022-032: Q01-Q11 runs (2 PASS / 9 FAIL) with run_ids and branches
- CLAIMS: promote M2 Sharpe-drift to PROVEN (Q01), refute Kelly (Q06), risk-limit-as-alpha (Q08), standalone reversal (Q11); add label-horizon + weekly-rebalance + long-short-turnover claims
- README: TOC + claim inventories for ch 04/05/07/08/09/10/12 updated to the Q-campaign
- new chapters 04 (prune), 05 (ensembles), 07 (isolation), 08 (construction), 09 (cost/turnover), 10 (risk limits & gates), 12 (synthesis); ch 00/02/03 updated
- Q08 calibration evidence persisted under book/data/evidence/q08-risklimit/
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