Add Iced panel adapter and AI chat/script panels

- Implemented a theme system in `iced-panel-adapter` for consistent styling across panels.
- Created `iced-panel-ai-chat` for an AI assistant interface, including message handling and UI components.
- Developed `iced-panel-script` for a DSL editor with execution capabilities, allowing procedural drawing commands.
- Introduced message types for interaction in both chat and script panels.
- Added color and theme management for improved visual consistency.

hcie-iced-app/crates/hcie-iced-gui/Cargo.toml

@@ -0,0 +1,24 @@
+[package]
+name = "hcie-iced-gui"
+version = "0.1.0"
+edition = "2021"
+
+[features]
+default = ["tablet-evdev"]
+tablet-evdev = ["dep:evdev"]
+
+[[bin]]
+name = "hcie-iced"
+path = "src/main.rs"
+
+[dependencies]
+hcie-engine-api = { path = "../../../hcie-engine-api" }
+iced-panel-adapter = { path = "../iced-panel-adapter" }
+iced = { workspace = true }
+env_logger = { workspace = true }
+log = { workspace = true }
+image = { workspace = true }
+serde_json = { workspace = true }
+rfd = { workspace = true }
+arboard = { workspace = true }
+evdev = { version = "0.12", optional = true }