Changelog

Unreleased

Added TexturePacker frame, manual source-region, and nine-slice image rendering fields for image-capable nodes.
Added Runtime host bridge APIs for bidirectional Flutter host calls and Lua notifications.
Added Runtime Lua networking APIs for async HTTP/HTTPS requests and WS/WSS connections.
Fixed nine-slice image seams by overlapping destination slices and using inset source sampling during runtime rendering.
Fixed Runtime alpha inheritance so parent fade commands apply to the full child subtree.
Added Runtime text shadow fields for text-capable nodes.
Fixed Runtime node color alpha composition so #AARRGGBB alpha now multiplies with node/runtime alpha instead of being overwritten.

Initial extracted package skeleton for flame_lua_runtime.
Added public API barrel with LuaGameWidget, FlameLuaGame, RuntimeOptions, package repositories, and script engine interfaces.
Added shared Runtime Lua helper assets.
Added manifest-driven package/resource/module loading support.
Added Runtime commands, rendering nodes, package activation, and Lua bridge infrastructure.