v2.23.0

Breaking Changes

• Hyperliquid perp opens fail closed on non-1x leverage. CoreWriter has no
  set-leverage action, so a requested leverage was never applied on-venue —
  positions opened at the account's per-asset default (e.g. 20x cross),
  surfaced only as a warning. PERP_OPEN requesting non-1x leverage is now
  rejected at compile time unless the strategy explicitly opts in with the
  new Intent.perp_open(accept_venue_leverage=True) (default False); the
  venue-observed leverage is still recorded post-fill. Venues that do set
  leverage on-venue (GMX V2) ignore the flag. (#3354)

Features

• Teardown exit-asset policy — declare
  TeardownProfile.preferred_asset_policy = TeardownAssetPolicy.KEEP_OUTPUTS
  to suppress the framework's post-close consolidation swap into USDC.
  Resolution order: explicit --asset-policy flag → strategy preference →
  framework default; honored by platform Stop, the dashboard close API, and
  strat test. The strat test --teardown ladder also gains a
  residual-position gate: measured open positions above dust after teardown
  now fail the step. (#3363)
• Backtests serve pool_history, pool_analytics, and
  funding_rate_history — served from the run's own data lanes
  (completed-day pool bars, TVL/volume, ascending hourly funding),
  no-look-ahead, Empty ≠ Zero; deliberate refusals kept where serving would
  fabricate structure. (#3368, #3374)
• Backtest data-provenance manifest + broker seam — every run collects a
  RunDataManifest with per-lane serve / refusal / degrade stamps, exposed on
  BacktestResult and serialized results; plus shared per-provider rate
  limiting, fail-closed lending chain scope, and a gateway hermeticity guard.
  (#3365)

Fixes

• HyperCore perp positions are valued in portfolio snapshots — discovery now
  gates on the actual PerpsReadRegistry reader set, so a live position no
  longer collapses snapshots to $0 (VIB-5768 / VIB-5576). (#3356)
• Perp dashboard truth defects (VIB-5942): wallet-NAV history chart, scoped
  reconciliation labels, snapshot-derived perp story via additive
  PerpPositionSummary proto, Empty ≠ Zero cost stack (#3358); wired into the
  GMX demo dashboards (#3369).
• Mantle swaps were unsubmittable — the ~2000x-inflated gas-floor table is
  corrected to measured scale. (#3362)
• Backtest gas fallbacks retuned to measured reality: Ethereum ~140x,
  Avalanche ~470x, BSC 60x overstatement, Polygon ~5x understatement; unset
  gas_fallback_gwei falls through to chain-aware defaults. (#3377, #3378, #3379)
• Backtest serve gaps + log truthfulness: offline token-registry symbol
  resolution, honest LP fill logs, hollow-guard attribution, venue-specific
  perp margin floors, advisory borrow warning. (#3367)
• MarketSnapshot.price honors quote in the seeded fast path — no more USD
  price under a non-USD quote label in backtests. (#3376)
• MarketSnapshot.total_portfolio_usd counts cash once — per-symbol cash
  mirrors no longer multiply into the total; live path byte-identical. (#3381)
• Exact-boundary get_price_at returns the candle at T (CoinGecko
  aligned-spacing rollout). (#3375)
• Three incubating strategies read their config.json again — nested
  "parameters" blocks flattened to the convention get_config() reads. (#3355)

Dependencies

• almanak-code v1.0.30 (#3364); pydantic-settings 2.14.2, pillow 12.3.0,
  pyasn1 0.6.4, gitpython 3.1.52, soupsieve 2.8.4.