v0.6.0

[0.6.0] - 2026-05-26

• chore: bump to 0.6.0
• feat(ui): brand teal accent + finalized tool button look
• feat(ui): collapsible inspector sections
• refactor(ui): drop show_status_chip + show_tool_labels prefs
• feat(ui): accent halo + white icon on selected tool
• feat(ui): tinted toasts with leading icon, drop side accent bar
• feat(ui): shadow-only dialogs, larger modal title, denser padding
• feat(ui): uppercase tracked section headers
• feat(ui): elevation tiers + neutral panel + brand accent
• refactor(updater): parse release JSON with serde_json
• chore(io): drop binary FBX exporter
• docs: split CLAUDE.md by subdir for lazy-load token savings
• docs: trim CLAUDE.md ~48% while preserving invariants
• feat(ui): ArrowUp/Down step numeric color inputs (Shift = ×10)
• feat(ui): accent preview outline + target highlight for erase/paint
• style(ui): drop floating-surface borders, prefer Monaco, fix canvas-bg seed
• feat(ui): canvas chrome overhaul + system blue accent + onboarding redesign
• feat(ui): canvas-first redesign with floating chrome
• feat(ui): first-launch coachmark tour
• docs: finalize CHANGELOG for v0.5.1 [skip ci]