Add M9-M14: UI redesign, plugins, macros, 3D viz, binary/segmentation ops, Metal GPU, scientific LUTs

M9: TailwindCSS + shadcn/ui frontend redesign
M10: Dynamic plugin system with shared library loading
M11: Macro recording, playback, and batch processing
M12: 3D volume visualization, marching cubes, STL/OBJ export, rivol:// protocol
M13: Additional GPU shaders, enhanced auto-threshold, merge channels
M14: Binary image processing (EDT, watershed, skeleton, connected components,
     voronoi), segmentation & analysis (particles, colocalization, find maxima),
     math/noise/filter/transform ops (60+ total), scientific LUTs (Fire, Ice,
     Spectrum, Jet, Phase, HiLo + .lut file I/O), Apple Metal GPU optimization
     (metal-only feature, Apple Silicon detection, lower dispatch threshold),
     native Metal compute crate (ri-metal with MSL shaders via objc2-metal),
     7 new WGSL GPU shaders (bilateral, variance, mean, math_ops, outline,
     minmax_filter, affine transform). 25 crates, 162 tests, 75+ IPC commands.

Co-Authored-By: Claude Opus 4.6 <[email protected]>

crates/ri-metal/Cargo.toml

@@ -0,0 +1,33 @@
+[package]
+name = "ri-metal"
+version.workspace = true
+edition.workspace = true
+rust-version.workspace = true
+license.workspace = true
+
+[dependencies]
+ri-types = { workspace = true }
+ri-core = { workspace = true }
+log = { workspace = true }
+
+[target.'cfg(target_os = "macos")'.dependencies]
+objc2 = "0.6"
+objc2-metal = { version = "0.3", features = [
+    "MTLDevice",
+    "MTLCommandQueue",
+    "MTLCommandBuffer",
+    "MTLComputeCommandEncoder",
+    "MTLComputePipeline",
+    "MTLBuffer",
+    "MTLLibrary",
+    "MTLResource",
+    "MTLTypes",
+    "MTLComputePass",
+    "MTLPipeline",
+    "MTLCommandEncoder",
+    "MTLAllocation",
+    "dispatch2",
+    "std",
+] }
+objc2-foundation = { version = "0.3", features = ["NSString", "NSError"] }
+dispatch2 = { version = "0.3", features = ["block2"] }