Three more open-issue pairs — registered follow-up

Registered before these solver and review calls. Three previously unattempted open issues from three repositories have complete nonempty public discussions and different retrieved comment-ID sets for the two arms. The manifest, SHA-256 5bdd6d789e6ceca49921c6082a915996cfb72016da7a8ac4cd91dbf4ae5a6442, freezes source commits, contexts, partial checks, paired order, models, budgets and stop rules. Selection follows earlier outcomes while batch 31 is running; Validator and Yup also occur in earlier batches. Distinct issue IDs do not establish statistical independence.

Open issue	Frozen partial acceptance	Proposed reference
Underscore #2214	A bound Date constructor and a bound ES class work with preset arguments; ordinary bound calls and invalid input remain valid.	Narrow manual port of native-bind behavior from PR #2845 to the current module layout. Legacy environments without native bind are outside the check.
validator.js #2433	Selected Panamanian mobile formats with a 507 prefix are accepted and selected invalid prefixes or lengths rejected; selected ordinary US mobile behavior remains valid.	Source-only PR #2694. The discussion narrows the issue to mobiles; completeness of the numbering plan is not established.
Yup #2252	For selected fields with prefix-sharing names, abortEarly:false validation errors are ordered by their full field key; ordinary disjoint keys remain ordered.	Source-only PR #2331. The issue also discusses form integration and abortEarly:true; neither is covered, and the latter is not treated as deterministic.

The qualification ledger records baseline failures, reference passes, controls and original and adapted references. These narrow checks and proposed references are not maintainer acceptance. Conditions, AI reviews and adjudication, bounded 503-only retries, sandbox and failure policy follow batch 30. The estimated budget is below $1, not a hard cap. Public issue text and comments may reveal solutions or be present in model training; model labels use the same proxy with unverified provenance. Short pre-seeded issue histories do not establish a production gain, savings or autonomous memory management.