feat(core): port Rust core runtime, codegen, and WASM host

[pgherveou]

Ports the canonical Rust protocol implementation into the repo. The truapi, truapi-platform, and truapi-server crates define the protocol types and host syscall traits, and truapi-codegen turns the crate's rustdoc JSON into both the Rust dispatcher/wire table and the @parity/truapi TypeScript client. truapi-server ships as a WASM host runtime that @parity/truapi-host-wasm loads, and the playground reaches it through a MessagePort handshake.

This is the smallest slice that runs the dotli playground diagnosis e2e end to end: the dotli submodule, the make wasm/dev/e2e-dotli/codegen targets, the codegen script, the deny.toml licence exceptions (smoldot, uniffi), the ci.yml dotli-e2e job, and the host-packages.yml WASM bundle checks ride along. The extended-theme-api RFC lives here too, paired with its truapi interface changes (the repo's check-rfc gate requires RFC docs to land alongside their interface changes).

First of a 3-PR stack carved from #104 (base: main). Mobile bindings and docs stack on top.

Authored with assistance from Claude Code.

[socket-security]

Review the following changes in direct dependencies. Learn more about Socket for GitHub.

Diff	Package	Supply Chain Security	Vulnerability	Quality	Maintenance	License
	npm/​@​parity/​truapi-host-wasm@​0.1.0
	cargo/​web-sys@​0.3.98
	cargo/​tokio@​1.52.3
	cargo/​smoldot@​1.1.2
	cargo/​smoldot-light@​1.1.3
	cargo/​uniffi@​0.29.5
	cargo/​thiserror@​1.0.69
	cargo/​wasm-bindgen@​0.2.121
	npm/​@​noble/​hashes@​2.2.0
	cargo/​blake2-rfc@​0.2.18
	cargo/​console_error_panic_hook@​0.1.7
	cargo/​send_wrapper@​0.6.0
	cargo/​sp-crypto-hashing@​0.1.0
	cargo/​aes-gcm@​0.10.3
	cargo/​async-trait@​0.1.89
	cargo/​bs58@​0.5.1
	cargo/​futures-timer@​3.0.3
	cargo/​getrandom@​0.2.17
	cargo/​hkdf@​0.12.4
	cargo/​p256@​0.13.2
	cargo/​pin-project@​1.1.13
	cargo/​rand@​0.8.6
	cargo/​schnorrkel@​0.11.5
	cargo/​sha2@​0.10.9
	cargo/​tempfile@​3.27.0
	cargo/​tokio-tungstenite@​0.21.0
	cargo/​tracing@​0.1.44
	cargo/​tracing-subscriber@​0.3.23
	cargo/​wasm-bindgen-futures@​0.4.71
	cargo/​wasm-bindgen-test@​0.3.71
	cargo/​web-time@​1.1.0
	cargo/​js-sys@​0.3.98
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