DashBoard/openspec/changes/archive/2026-02-11-portal-shell-route-view-integration/specs/legacy-page-wrapper-strategy/spec.md

MODIFIED Requirements

Requirement: Selected legacy pages SHALL be integrated via wrapper-first strategy

The migration SHALL integrate job-query, excel-query, query-tool, and tmtt-defect through wrapper-based routing before full rewrites, and SHALL keep this mode temporary and explicitly tracked.

Scenario: Wrapper route availability for selected pages

• WHEN users navigate to each selected legacy page from the new shell
• THEN the route SHALL remain reachable and functionally usable through the wrapper layer

Scenario: Wrapper inventory is explicit

• WHEN migration status is reviewed for shell cutover readiness
• THEN the list of pages still in wrapper mode SHALL be explicitly recorded and versioned

Requirement: Wrapper mode SHALL preserve legacy functional parity

Wrapper integration SHALL preserve current API interactions, core user workflows, and error handling semantics for wrapped pages until rewrite cutover.

Scenario: Legacy workflow parity under wrapper

• WHEN users execute core operations on a wrapped page (query/filter/export where applicable)
• THEN operation results SHALL remain behaviorally equivalent to pre-wrapper baseline

Scenario: Wrapper fallback preserves operability

• WHEN a native rewrite is temporarily disabled through rollback controls
• THEN the corresponding wrapper path SHALL restore usable behavior within the rollback target

Requirement: Wrapper phase SHALL define rewrite exit criteria

Each wrapped page SHALL have explicit readiness criteria that gate transition from wrapper mode to full Vue module rewrite.

Scenario: Rewrite readiness decision

• WHEN a wrapped page reaches agreed quality and parity thresholds
• THEN the page SHALL be eligible for rewrite scheduling
• THEN wrapper decommission SHALL only occur after rewrite parity validation passes

Scenario: Exit criteria are enforced before decommission

• WHEN a rewrite candidate page has incomplete smoke or parity evidence
• THEN wrapper decommission for that page SHALL be blocked

ADDED Requirements

Requirement: Wrapper mode SHALL be fully decommissioned at migration completion

The shell migration SHALL reach an end state where selected legacy pages are served through native route-view modules and wrapper mode is removed from runtime navigation.

Scenario: Wrapper count reaches zero

• WHEN final migration gates are evaluated
• THEN job-query, excel-query, query-tool, and tmtt-defect SHALL all resolve through native route-view integration
• THEN wrapper-only runtime routes for these pages SHALL no longer be active navigation targets