Prototype 0.1.1

Changelog 

• Reworked formula placement into a single placement mode: click a formula to arm it, hover cells for preview details, click a cell to place, and cancel with Escape or by clicking the formula again.
• Added a New Workbook tutorial prompt with Yes/No choices and a Don't ask again preference.
• Split the opening into a staged first-run guide that introduces one `=VALUE()` cell, recalculation, additional value licenses, then the first `=SUM()` collector.
• Added freeplay starts that skip tutorial guidance and begin with 4 `=VALUE()` licenses ready.
• Slowed the early economy so `=SUM()` arrives after value placement and payout goals instead of appearing alongside too many options at once.
• Moved the selected-cell inspector into the sheet footer and made that area switch to placement preview while a formula is armed.
• Reworked the File menu to focus on save/export/import/reset, with Exit to Menu at the bottom.
• Added in-game Formula Licenses help with system-styled tooltip behavior and a close button.
• Expanded Help with clearer vocabulary for instability, pressure, `#VALUE!`, error spreading, volatile cells, and corrupted workbook state.
• Added an unlock-aware Help formula reference with formula roles, personalities, placement desires, and tradeoffs.
• Added staged contextual help for special cells, row pressure, `#VALUE!`, cleanup, book switching, and build archetypes.