feat(web): add offline manifest inspection tooling

[lukachi]

Summary

• Add a public, read-only transaction-manifest inspection API and runtime registry reporting.
• Add offline Manifest Inspector and Format Support pages to the web app.
• Extend the temporary stacked CI gate with package, smplx-adapter, and tooling typechecks, a direct Vite bundle, formatting, lint, and focused tests.

Stack

PR 7 of 9. This PR targets PR 6 (#15), feature/tx-manifest-validation.

Boundary

This slice inspects documents offline only. It does not connect a wallet or network, authorize or sign transactions, finalize or broadcast them, or activate release behavior. The committed smplx submodule pointer is unchanged.

The inspector follows the PR 6 model: foreign-asset remains unreachable without request/deployment context, unreadable-build-mode is document-only, and compiler version is an explicit optional input because the current package does not expose it.

Verification

Verified from a detached worktree with the exact committed LWK and smplx revisions:

• package typecheck
• focused manifest-tooling typecheck
• exact smplx adapter typecheck
• direct Vite production bundle
• formatting check
• lint (existing repository warnings only)
• 653 tests across 36 files, 0 failures

Known deferred gate

The full root/web dependency typecheck still exposes the existing duplicate React/Zod/csstype dependency-family debt tracked as F002 and reserved for U009. This PR adds a focused tooling typecheck so its own source and imported UI dependencies are checked without claiming that broader debt is solved.

A local browser visual smoke test could not run because the connected browser runtime had no available browser. Server-render tests and the production bundle passed.

[Arvolear]

LGTM as it's mostly a web app.