Fix XP application resizing, focus, and Calculator layout

[astrovm]

Summary

• enable resize and maximize for FreeCell and Spider Solitaire
• resize the real Win32 game windows together with their BoxedWine framebuffers
• enable resize and maximize for Command Prompt
• focus the command input after clicking anywhere in the Command Prompt window content or title bar
• correct Calculator to the measured Windows XP 260x260 geometry, control positions, spacing, colors, and raised-button appearance

XP VM comparison

• captured Calculator and Command Prompt from the isolated Windows XP SP3 reference VM at 1024x768 and 96 DPI
• measured Calculator outer bounds, display, clear controls, keypad columns, keypad rows, menu positions, and label colors from the VM capture
• verified that XP Command Prompt exposes resize and maximize controls and accepts typing after the window receives focus

BoxedWine implementation

FreeCell and Spider Solitaire now include small native resize hosts. Each host starts the original XP executable and applies browser window size changes to the real Win32 window. Small screens still scale the complete native surface, while larger and maximized windows resize the framebuffer and game window.

Validation

• bun run quality
• bun run typecheck
• bun test — 121 tests, 2,216 assertions
• bun run validate:javascript
• bun run validate:icons
• compiled both new MinGW resize-host variants
• verified package hashes and provenance manifests