chore: docs, CI, tooling, and dotli integration for the Rust core

[pgherveou]

Summary

Carries the top integration layer: docs/CI/tooling, playground support, and dotli host integration for the Rust core stack.

This update points dotli at the namespaced callback implementation, keeps the playground preimage-submit e2e timeout aligned with SSO-backed operations, and records a dotli submodule commit that is pushed to the dotli worktree-issue-96-rust-core-port branch.

Stack

Part of the Rust core runtime port umbrella #104. Full port sequence:

1. feat(truapi): add testing API and versioned wiring #248 - layer 1/9, merged historical: truapi testing API and versioned wiring.
2. feat(truapi-platform): add host capability traits #249 - layer 2/9, merged historical: truapi-platform host capability traits.
3. feat(truapi-codegen): emit Rust dispatcher, wire table, and host callbacks #254 - layer 3/9, merged historical: codegen Rust dispatcher, wire table, and host callbacks.
4. feat(truapi-server): add host logic primitives #255 - layer 4/9, merged historical: server host logic primitives.
5. feat(truapi-server): add wire and chain infrastructure #256 - layer 5/9, merged historical: server wire and chain infrastructure.
6. feat(truapi-server): add platform runtime and host bridge #250 - active layer 1/4: server runtime, permissions, lifecycle, and permission-flow docs.
7. feat(codegen): generate wasm bridge callbacks #265 - active layer 2/4: generic wasm bridge/codegen layer.
8. feat(host-wasm): add @parity/truapi-host-wasm runtime #252 - active layer 3/4: @parity/truapi-host-wasm namespaced callback consumer.
9. 👉 chore: docs, CI, tooling, and dotli integration for the Rust core #253 - active layer 4/4, top: docs, CI/tooling, playground, and dotli integration. This PR.

This top active child is kept tree-equivalent with umbrella #104.

Validation

• make wasm
• cd hosts/dotli && bun run typecheck && bun run test
• Top branch tree verified equal to the umbrella branch tree locally before push.

[replghost]

Small suggestion from the runtime-boundary review: after ./scripts/codegen.sh in the Codegen job, consider adding:

- name: Check generated Rust output is committed
  run: git diff --exit-code -- rust/crates/truapi-server/src/generated

- name: Check Rust/TS wire table parity
  run: TRUAPI_REQUIRE_GENERATED_TS=1 cargo test -p truapi-server --test wire_table_ts_parity

That would make generated Rust dispatcher/wire-table drift and TS/Rust wire-table parity fail in CI directly, instead of relying on the broader workspace test behavior.

[TarikGul]

Verified the fixes I sent you, good to go 🚀

[TarikGul]

Just some conflicts that need to be resolved.

[filvecchiato]

looks good!