Release v8.0.4

chore: Bump version to 8.0.4

Implement esbuild-based bundling for MCP server to resolve dependency installation issues.

- Bundle all dependencies into single dist/index.js file
- Add CommonJS require polyfill for CJS dependencies
- Update build script to use bundling instead of TypeScript compilation
- Remove separate .d.ts and .js files in favor of single bundle
- Fix MCP server startup failures due to missing node_modules in marketplace installations

Version updates:
- VERSION: 8.0.4
- package.json: 8.0.4
- plugin.json: 8.0.4
- marketplace.json: 8.0.4

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Co-Authored-By: Claude <noreply@anthropic.com>