## Purpose
Define stable requirements for legacy-page-wrapper-strategy.

## 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.

#### 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

### 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.

#### 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

### 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