0.4.0

What's Changed

• Coin/encumbrance redesign by @tasandberg in #35
• design-sync: subtle section-header guidance by @tasandberg in #34
• E2E CI: Foundry v14 + Playwright suite for core sheet flows by @tasandberg in #36
• Phase I: feature-folder restructure + slim by @tasandberg in #38
• Optimistic UI: shadow-state provider + snappy HP/coin edits by @tasandberg in #39
• Inventory: drag items onto the macro hotbar to create attack macros by @tasandberg in #37
• SCSS dedup: surface-card + rollable-card mixins (output-preserving) by @tasandberg in #40
• feat: open weapon item sheet from attack-card name by @tasandberg in #42
• Style/component consolidation: Monogram + SectionHeader (+ drift review list) by @tasandberg in #41

Full Changelog: 0.3.0...0.4.0