Implement phased modernization infrastructure for transitioning from multi-page legacy routing to SPA portal-shell architecture, plus post-delivery hardening fixes for policy loading, fallback consistency, and governance drift detection. Key changes: - Add route contract enrichment with scope/visibility/compatibility policies - Canonical 302 redirects from legacy direct-entry to /portal-shell/ routes - Asset readiness enforcement and runtime fallback retirement for in-scope routes - Shared feature-flag helpers (env > config > default) replacing duplicated _to_bool - Defensive copy for lru_cached policy payloads preventing mutation corruption - Unified retired-fallback response helper across app and blueprint routes - Frontend/backend route-contract cross-validation in governance gates - Shell CSS token fallback values for routes rendered outside shell scope - Local-safe .env.example defaults with production recommendation comments - Legacy contract fallback warning logging and single-hop redirect optimization Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
1.6 KiB
1.6 KiB
frontend-quality-gate-modernization Specification
Purpose
TBD - created by archiving change full-modernization-architecture-blueprint. Update Purpose after archive.
Requirements
Requirement: Modernization releases SHALL pass multi-dimensional frontend quality gates
In-scope modernization releases SHALL pass functional, visual, accessibility, and performance gates before promotion.
Scenario: Gate bundle at release candidate
- WHEN a release candidate includes in-scope modernization changes
- THEN it SHALL execute functional behavior parity checks for affected routes
- THEN it SHALL execute critical-state visual regression checks for affected routes
- THEN it SHALL execute accessibility checks for keyboard and reduced-motion behavior
- THEN it SHALL execute performance budget checks for defined shell/route thresholds
Requirement: Gate failures SHALL block release promotion
Blocking quality gates SHALL prevent release promotion for in-scope modernization changes.
Scenario: Blocking gate failure
- WHEN any mandatory modernization quality gate fails
- THEN release promotion SHALL be blocked until the failure is resolved or explicitly waived per governance policy
Requirement: Deferred routes SHALL be excluded from this phase gate baseline
The route baseline for this modernization phase SHALL exclude deferred routes.
Scenario: Deferred route baseline exclusion
- WHEN gate baseline is computed for this phase
- THEN
/tables,/excel-query,/query-tool, and/mid-section-defectSHALL be excluded from mandatory modernization gate coverage