Sort Search Results

### User Story: Sort Search Results
**As a** registry analyst,
**I want** to sort the search-results table by any column (e.g., Location, Registration Date),
**So that** I can scan large result sets in the order that best supports quick verification.

### Context
Part of the “Verify Home Not Already Registered” epic; improves readability for high-volume searches.

#### Business Rules
- [ ] Clicking a column header toggles **ascending / descending**.
- [ ] Active sort persists when navigating to a registration and back.
- [ ] Table re-renders sorted results in ≤ 1 second for up to **2 000** rows.

### Acceptance Criteria / Scenarios
- **GIVEN** a 300-row result set
**WHEN** I click **Home Location**
**THEN** rows reorder alphabetically within one second.

- **GIVEN** I open a registration and return to results
**THEN** the previous sort order remains active.