feat: Add 6 new ZRTL plugins for graphics, windowing, and media

New plugins:
- zrtl_window: High-level cross-platform windowing API (SDL2 backend)
- zrtl_sdl: Low-level SDL2 bindings for windows, events, rendering
- zrtl_paint: 2D software rasterization with tiny-skia
- zrtl_svg: SVG parsing and rendering with resvg/usvg
- zrtl_image: Image encoding/decoding (PNG, JPEG, GIF, WebP, etc.)
- zrtl_xml: XML parsing and generation with quick-xml

Key features:
- Thread-local storage pattern for SDL2's non-thread-safe types
- Paint canvas buffer access for SDL/Window rendering integration
- $Window$blit and $Sdl$blit_rgba for rendering paint canvases
- Full event handling (keyboard, mouse, window events)
- Anti-aliased 2D drawing primitives with transforms

Author: darmie

Cargo.toml

@@ -1,6 +1,18 @@
 [workspace]
 resolver = "2"
-members = ["crates/typed_ast", "crates/compiler", "crates/whirlwind_adapter", "crates/zyntax_cli", "crates/runtime", "crates/zyntax_plugin_macros", "crates/zyn_peg", "crates/haxe_zyntax_runtime", "crates/zyntax_embed", "sdk/zrtl", "sdk/zrtl_macros"]
+members = [
+    "crates/typed_ast",
+    "crates/compiler",
+    "crates/whirlwind_adapter",
+    "crates/zyntax_cli",
+    "crates/runtime",
+    "crates/zyntax_plugin_macros",
+    "crates/zyn_peg",
+    "crates/haxe_zyntax_runtime",
+    "crates/zyntax_embed",
+    "sdk/zrtl",
+    "sdk/zrtl_macros",
+]
 
 
 [workspace.dependencies]

plugins/Cargo.toml

@@ -17,6 +17,12 @@ members = [
     "zrtl_compress",
     "zrtl_sql",
     "zrtl_websocket",
+    "zrtl_window",
+    "zrtl_image",
+    "zrtl_xml",
+    "zrtl_paint",
+    "zrtl_svg",
+    "zrtl_sdl",
 ]
 
 [workspace.dependencies]

plugins/zrtl_image/Cargo.toml

@@ -0,0 +1,13 @@
+[package]
+name = "zrtl_image"
+version = "0.1.0"
+edition = "2021"
+description = "ZRTL Image plugin - image encoding/decoding for common formats"
+license = "Apache-2.0"
+
+[lib]
+crate-type = ["cdylib", "staticlib", "rlib"]
+
+[dependencies]
+zrtl = { path = "../../sdk/zrtl" }
+image = { version = "0.24", default-features = false, features = ["png", "jpeg", "gif", "webp", "bmp", "ico", "tiff"] }

plugins/zrtl_image/README.md

@@ -0,0 +1,65 @@
+# zrtl_image
+
+Image encoding and decoding for common formats.
+
+## Supported Formats
+
+- PNG, JPEG, GIF, WebP, BMP, ICO, TIFF
+
+## Functions
+
+### Loading/Saving
+- `$Image$load(path: String) -> Handle` - Load image from file
+- `$Image$load_bytes(data: Array[u8], format: i32) -> Handle` - Load from byte array
+- `$Image$save(handle: Handle, path: String, format: i32) -> i32` - Save image
+- `$Image$encode(handle: Handle, format: i32) -> Array[u8]` - Encode to bytes
+- `$Image$free(handle: Handle)` - Free image
+
+### Image Info
+- `$Image$width(handle: Handle) -> u32` - Get width
+- `$Image$height(handle: Handle) -> u32` - Get height
+- `$Image$get_pixel(handle: Handle, x: u32, y: u32) -> Color` - Get pixel
+- `$Image$set_pixel(handle: Handle, x: u32, y: u32, color: Color)` - Set pixel
+
+### Creation
+- `$Image$create(width: u32, height: u32) -> Handle` - Create blank RGBA image
+- `$Image$clone(handle: Handle) -> Handle` - Clone image
+
+### Manipulation
+- `$Image$resize(handle: Handle, width: u32, height: u32) -> Handle` - Resize
+- `$Image$crop(handle: Handle, x: u32, y: u32, w: u32, h: u32) -> Handle` - Crop
+- `$Image$rotate90(handle: Handle) -> Handle` - Rotate 90 degrees
+- `$Image$rotate180(handle: Handle) -> Handle` - Rotate 180 degrees
+- `$Image$rotate270(handle: Handle) -> Handle` - Rotate 270 degrees
+- `$Image$flip_horizontal(handle: Handle) -> Handle` - Flip horizontally
+- `$Image$flip_vertical(handle: Handle) -> Handle` - Flip vertically
+- `$Image$grayscale(handle: Handle) -> Handle` - Convert to grayscale
+- `$Image$blur(handle: Handle, sigma: f32) -> Handle` - Gaussian blur
+- `$Image$brighten(handle: Handle, amount: i32) -> Handle` - Adjust brightness
+- `$Image$contrast(handle: Handle, amount: f32) -> Handle` - Adjust contrast
+- `$Image$invert(handle: Handle) -> Handle` - Invert colors
+
+## Format Constants
+
+- `FORMAT_PNG = 0`
+- `FORMAT_JPEG = 1`
+- `FORMAT_GIF = 2`
+- `FORMAT_WEBP = 3`
+- `FORMAT_BMP = 4`
+- `FORMAT_ICO = 5`
+- `FORMAT_TIFF = 6`
+
+## Example
+
+```
+// Load, resize, and save an image
+let img = $Image$load("input.png");
+let resized = $Image$resize(img, 800, 600);
+$Image$save(resized, "output.jpg", FORMAT_JPEG);
+$Image$free(resized);
+$Image$free(img);
+```
+
+## Dependencies
+
+- `image` crate (0.24)