chore(mcp): remove Inspector sandbox_proxy workaround

[dsklyar]

Summary

• Removes the vendored sandbox_proxy.html restore path now that @modelcontextprotocol/inspector@2.2.0 ships clients/web/static (inspector#1859 / inspector#1934).
• Drops the restore helpers, tests, oxfmt ignore, mcp:inspect call site, and README workaround docs.
• Keeps INSPECTOR_SPEC pinned to @2 for the MCP Apps capability floor.

Closes ZEL-8153

Test plan

• Confirmed npm pack @modelcontextprotocol/inspector@2 includes clients/web/static/sandbox_proxy.html
• pnpm run format / pre-commit quality:fix + pre-push tests passed
• pnpm run typecheck:root after codegen
• Manually: pnpm mcp:inspect --examples, open an app — no Sandbox not loaded: ENOENT

Valdiation

[linear-code]

ZEL-8153

[pkg-pr-new]

Open in StackBlitz

@transcend-io/airgap.js-types

pnpm add https://pkg.pr.new/@transcend-io/airgap.js-types@439

yarn add https://pkg.pr.new/@transcend-io/airgap.js-types@439.tgz

@transcend-io/cli

pnpm add https://pkg.pr.new/@transcend-io/cli@439

yarn add https://pkg.pr.new/@transcend-io/cli@439.tgz

@transcend-io/design-tokens

pnpm add https://pkg.pr.new/@transcend-io/design-tokens@439

yarn add https://pkg.pr.new/@transcend-io/design-tokens@439.tgz

@transcend-io/internationalization

pnpm add https://pkg.pr.new/@transcend-io/internationalization@439

yarn add https://pkg.pr.new/@transcend-io/internationalization@439.tgz

@transcend-io/privacy-types

pnpm add https://pkg.pr.new/@transcend-io/privacy-types@439

yarn add https://pkg.pr.new/@transcend-io/privacy-types@439.tgz

@transcend-io/sdk

pnpm add https://pkg.pr.new/@transcend-io/sdk@439

yarn add https://pkg.pr.new/@transcend-io/sdk@439.tgz

@transcend-io/type-utils

pnpm add https://pkg.pr.new/@transcend-io/type-utils@439

yarn add https://pkg.pr.new/@transcend-io/type-utils@439.tgz

@transcend-io/utils

pnpm add https://pkg.pr.new/@transcend-io/utils@439

yarn add https://pkg.pr.new/@transcend-io/utils@439.tgz

@transcend-io/mcp

pnpm add https://pkg.pr.new/@transcend-io/mcp@439

yarn add https://pkg.pr.new/@transcend-io/mcp@439.tgz

@transcend-io/mcp-server-admin

pnpm add https://pkg.pr.new/@transcend-io/mcp-server-admin@439

yarn add https://pkg.pr.new/@transcend-io/mcp-server-admin@439.tgz

@transcend-io/mcp-server-assessment

pnpm add https://pkg.pr.new/@transcend-io/mcp-server-assessment@439

yarn add https://pkg.pr.new/@transcend-io/mcp-server-assessment@439.tgz

@transcend-io/mcp-server-base

pnpm add https://pkg.pr.new/@transcend-io/mcp-server-base@439

yarn add https://pkg.pr.new/@transcend-io/mcp-server-base@439.tgz

@transcend-io/mcp-server-consent

pnpm add https://pkg.pr.new/@transcend-io/mcp-server-consent@439

yarn add https://pkg.pr.new/@transcend-io/mcp-server-consent@439.tgz

@transcend-io/mcp-server-discovery

pnpm add https://pkg.pr.new/@transcend-io/mcp-server-discovery@439

yarn add https://pkg.pr.new/@transcend-io/mcp-server-discovery@439.tgz

@transcend-io/mcp-server-docs

pnpm add https://pkg.pr.new/@transcend-io/mcp-server-docs@439

yarn add https://pkg.pr.new/@transcend-io/mcp-server-docs@439.tgz

@transcend-io/mcp-server-dsr

pnpm add https://pkg.pr.new/@transcend-io/mcp-server-dsr@439

yarn add https://pkg.pr.new/@transcend-io/mcp-server-dsr@439.tgz

@transcend-io/mcp-server-inventory

pnpm add https://pkg.pr.new/@transcend-io/mcp-server-inventory@439

yarn add https://pkg.pr.new/@transcend-io/mcp-server-inventory@439.tgz

@transcend-io/mcp-server-preferences

pnpm add https://pkg.pr.new/@transcend-io/mcp-server-preferences@439

yarn add https://pkg.pr.new/@transcend-io/mcp-server-preferences@439.tgz

@transcend-io/mcp-server-workflows

pnpm add https://pkg.pr.new/@transcend-io/mcp-server-workflows@439

yarn add https://pkg.pr.new/@transcend-io/mcp-server-workflows@439.tgz

commit: ae2791a

[giacaglia]

Noice