## ADDED Requirements

### Requirement: Achieved specializations default to expanded
The SpecializationRanking component SHALL initialize with all achieved specializations in the expanded state, showing their AllocationBreakdown credit list by default.

#### Scenario: Initial render with achieved specializations
- **WHEN** the SpecializationRanking component renders with one or more achieved specializations
- **THEN** the AllocationBreakdown (per-course credit list) SHALL be visible for each achieved specialization without user interaction

#### Scenario: Achieved set changes after course selection
- **WHEN** the set of achieved specializations changes due to a course pin/unpin or ranking reorder
- **THEN** all newly achieved specializations SHALL be expanded by default

#### Scenario: User manually collapses an achieved specialization
- **WHEN** the user clicks on an achieved specialization that is currently expanded
- **THEN** the AllocationBreakdown for that specialization SHALL collapse

#### Scenario: Non-achieved specializations remain non-expandable
- **WHEN** a specialization has a status other than "achieved"
- **THEN** it SHALL NOT display an AllocationBreakdown and SHALL NOT be expandable