Handle boundary and line-search fixed-effect inference

README.md

@@ -151,14 +151,20 @@ Optional named contrasts are supplied by `--contrast-matrix`,
 task-specific covariate columns receive zero weights automatically. Finalized
 results contain contrast estimates, adjusted standard errors, statistics,
 numerator and denominator degrees of freedom, and p-values as JSON arrays.
-This release uses manifest v2, run-signature v2, block v3, and finalized-output
-v2 contracts. It intentionally does not read older contracts.
+This release uses manifest v2, run-signature v3, block v4, and finalized-output
+v3 contracts. It intentionally does not read older block, run-signature, or
+finalized-output contracts.
 
 Fixed-effect inference defaults to Satterthwaite. Select Kenward-Roger or turn
 inference off with `--fixed-effect-test kenward-roger` or
 `--fixed-effect-test none`. Coefficient-wise standard errors, statistics,
 denominator degrees of freedom, and p-values are exported as JSON arrays; tasks
 with extra covariates also report their joint F test in the summary columns.
+An accepted `sigma_g2=0` boundary is refitted as ordinary least squares without
+the GRM term and is reported as `boundary_ols`. A retained
+`line_search_failed` iterate continues through the selected fixed-effect
+inference and is reported as `line_search_conditional` while preserving the
+optimizer status.
 
 ## Recovery and provenance