Mainframe Engine v1.1.1

What's Changed

• Design: 2D skeletal animation (G17) + a Starlight docs site on GitHub Pages by @brogan89 in #37
• G4: save games and settings (SaveServer, UserSettings, rebinding, drop-in settings menu) by @brogan89 in #39
• Editor: Project Manager header actions + Download Example menu (Demo, Forest) by @brogan89 in #38
• Docs site: drop Plans/Decisions, version in the title; editor Documentation button (F1) by @brogan89 in #40
• 2D canvas post-processing, 32 culled 2D lights, particle life features (ADRs 0185–0187) by @brogan89 in #42
• Forest icon .meta and a Claude launch.json for the docs dev server by @brogan89 in #41
• Game packaging: fix 'rid…: unbound variable' on macOS CI by @brogan89 in #44
• CI: render tests in three shards; timing-only runs measure a short window on lavapipe by @brogan89 in #45
• CodeReloadTests: report why Roslyn could not load a framework assembly (Windows flake) by @brogan89 in #43
• NuGet packages: MainframeEngine + MainframeEngine.Templates, no checkout or editor needed (ADR 0188) by @brogan89 in #46
• CI: docs deploy only with a release; docs-only PRs skip the heavy jobs by @brogan89 in #47

Full Changelog: v1.1.0...v1.1.1