feat: llimphi standalone — framework UI soberano extraído del monorepo

Motor gráfico Llimphi como workspace independiente: bucle Elm
(input→update→view→layout→raster→present) sobre wgpu+vello+taffy+parley.
Núcleo (hal/raster/layout/text/ui/theme/surface/motion/icons) + ~40 widgets
+ módulos, sin dependencias al resto del monorepo. cargo check --workspace
pasa (64 crates). Puerta de entrada: cargo run -p llimphi-ui --example counter.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

modules/plugin-host/Cargo.toml

@@ -0,0 +1,21 @@
+[package]
+name = "llimphi-plugin-host"
+version.workspace = true
+edition.workspace = true
+license.workspace = true
+authors.workspace = true
+publish.workspace = true
+description = "llimphi-plugin-host — runtime de plugins WASM (Tier 2) para apps Llimphi. Carga .wasm + manifest.toml, aplica sandbox por card_core::Permissions, e invoca capabilities devolviendo PluginAction."
+
+[dependencies]
+card-core = { path = "../../../../shared/card/card-core" }
+wasmi = { workspace = true }
+serde = { workspace = true }
+toml = { workspace = true }
+thiserror = { workspace = true }
+tracing = { workspace = true }
+
+[dev-dependencies]
+# wat sólo aparece en tests: los fixtures se escriben en WAT y se
+# compilan en runtime, evitando una dependencia de toolchain wasm32.
+wat = { workspace = true }