docs: archive more-patterns change and sync specs

Archive completed change and update pattern-placement spec.
2026-11-08 16:22:44 +01:00
parent ed6c9c81f3
commit 8c2fbbbbc8
6 changed files with 14 additions and 0 deletions
@@ -58,3 +58,17 @@ The system SHALL ignore left clicks when no placement tool is active.
 #### Scenario: No tool
 - **WHEN** the user left-clicks while no tool is active
 - **THEN** the grid is unchanged
 ### Requirement: Additional built-in patterns are available
 The system SHALL provide additional built-in patterns (Beacon, Loaf, Boat, Tub, R-pentomino, Acorn) selectable via keys 5-0.
 #### Scenario: Select beacon
 - **WHEN** the user triggers `select:beacon`
 - **THEN** a beacon preview is shown
 ### Requirement: New patterns support rotation
 The system SHALL support 90-degree rotation for all new patterns.
 #### Scenario: Rotate new pattern
 - **WHEN** the user rotates a new pattern preview
 - **THEN** its cells rotate accordingly