Place a guest by clicking

You know where some people go. The best man sits next to the groom, and nan needs to be near a door. You do not care about the rest.

Placing someone by hand pins them, and the pin is what auto-allocate has to respect.

Acceptance criteria

• Unseated guests listed in a rail beside the floorplan
• Click a guest to select, click a seat to place. Two clicks, no drag
• Placing a guest pins them, marked with a filled dot on the table
• Clicking a pinned guest releases the pin
• The rail updates as guests are seated
• Selecting a guest and pressing escape clears the selection

Notes

Drag and drop is TT-23. The MVP has to be completely usable without it.