[B1] Add parity proof for renderer scope predicate mirror (audit F2)

[SisyphusZheng]

Blocker from the B1.1 hostile admission audit (#1222, report docs/evidence/2026-09-03-v044-hostile-admission-audit.md, audit SHA c4b48460).

Finding (constitution §4.3, parity proof missing): renderer scope predicate mirror — rendererScopeMatches (packages/adapter-vite/src/entry-route-helpers.ts:24) vs generated __matchingRenderers (:38) — carries a "must mirror exactly" comment but zero binding tests; scoped-renderer coverage exists on the codegen side only.

Remediation: add a binding corpus test over rendererScopeMatches and the generated __matchingRenderers (parity proof per §4.3), or converge onto one implementation.

Blocks Beta.1 closure per constitution §6.2. Part of #1222 / #1150 / #1155.

[SisyphusZheng]

Closed — remediated via PR #1274 (merged to dev at 18778c95, CI green). New binding corpus packages/adapter-vite/__tests__/renderer-scope-parity.test.ts evaluates the generated __matchingRenderers verbatim and compares it against rendererScopeMatches over adversarial scope sets × route paths (exact/prefix/nested/non-match/boundary-separator/case). RED proven by deliberate boundary-separator drift (0 passed/2 failed), reverted, GREEN restored. §4.3 justification recorded in the new registry row.