v1.1.0: pooled runtime, 959 tests, production hardening (0 squash)

FROM_IMHOTEP

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+Operator team,
+
+Thanks for the 12:12 report. We found and fixed two remaining architecture-level issues on our side.
+
+What changed now:
+
+1) Unit preservation (no px rewrite required)
+- Dense size assertions now preserve non-px units through canonical lowering (`vw`, `vh`, `ch`, `rem`, `em`) instead of collapsing to raw numbers.
+- Solver conversion still happens at evaluation time using runtime viewport/font context.
+- Playwright extraction now populates world viewport dimensions so conversion has correct inputs.
+
+2) Stronger expect-all diagnostics/hardening
+- `ui.expect.all/any/none` remain explicitly bound and immutable on the API handle.
+- Added direct compatibility check that actually invokes `ui.expect.all(...).to.be.atLeast(...)` and reports pass/fail details.
+
+New compatibility checks included in `ui.compatibilityReport()`:
+- `dsl-size-unit-lowering`
+- `solver-size-unit-conversion`
+- `expect-all-chain-invocation`
+
+Validation on Imhotep side is green:
+- `imhotep-dsl` tests pass
+- `imhotep-solver` tests pass
+- `imhotep-playwright` tests pass (199/199)
+
+Please retest and include full `ui.compatibilityReport()` output with the new check IDs.
+
+If anything still fails, send:
+- full failing clause payload (`status`, `truth`, `metrics`, diagnostics)
+- exact API snippet used in the failing test
+
+— Imhotep