docs(plugin): prepare Codex Ascension 0.1.1 release

[NWYLZW]

Summary

• replace the plugin README with focused installation, usage, configuration, permissions, limits, and troubleshooting guidance
• add a Simplified Chinese user guide and move maintainer-only development and release steps to plugin/DEVELOPMENT.md
• add an installable CordisX package descriptor, capability-free runtime manifest, portable browser bundle, and archive integrity checks
• bump plugin package metadata from 0.1.0 to 0.1.1

The public Marketplace v3 entry does not yet contain an artifact. The README therefore makes CLI installation conditional on the catalog owner adding this release artifact and directs users to the GitHub prerelease until then.

Verification

• npm run check from plugin/ (typecheck, build, 3 tests, package check)
• pinned CordisX 0.1.0-beta.1 package resolver accepts ID codex-ascension, version 0.1.1, runtime schema v1, and zero capabilities
• npx cordisx dev . --dry-run from plugin/
• real npm pack archive inspection includes both READMEs, cordisx-package.json, runtime-manifest.json, and dist/runtime/module.js
• bundled runtime has no bare Schemastery import and retains only the Host cordisx/contracts facade
• changed lock entries resolve only from https://registry.npmjs.org with public integrity metadata; no internal registry URLs or credentials
• affected-file dprint check
• local Markdown link check
• git diff --check
• petition runtime and assets are untouched