Feature: WebMCP support

[ryan-roemer]

• Added WebMCP tool registration (webmcp.js) and iframe MCP transport server (iframe-server.js) sharing a centralized tool definition (tool-defs.js) that wraps the existing searchPosts function
• Migrated all CDN module imports from esm.sh to jsdelivr.net, added import map overrides for React version deduplication
• added WebGPU acceleration support for the embedding model and memory cleanup
• added maxChunks parameter support to searchPosts
• Upgraded deps

[Copilot]

Pull request overview

This PR adds WebMCP support to the vector search web demo, enabling AI agents to discover and invoke a semantic search tool through two transport mechanisms: the WebMCP browser API (navigator.modelContext) and an iframe-based MCP transport for embedding in other applications. The PR also migrates CDN imports from esm.sh to jsdelivr.net and upgrades ESLint/Prettier tooling.

Changes:

• Added WebMCP tool registration (webmcp.js) and iframe MCP transport server (iframe-server.js) sharing a centralized tool definition (tool-defs.js) that wraps the existing searchPosts function
• Migrated all CDN module imports from esm.sh to jsdelivr.net, added import map overrides for React version deduplication, and added WebGPU acceleration support for the embedding model
• Upgraded ESLint to v10, added @eslint/js as an explicit dependency, upgraded Prettier to v3.8.1, and added maxChunks parameter support to searchPosts

Reviewed changes

Copilot reviewed 7 out of 9 changed files in this pull request and generated 5 comments.

Show a summary per file

File	Description
public/index.html	Migrated import map from esm.sh to jsdelivr, added @mcp-b/transports import and React version overrides, added WebMCP and iframe server initialization scripts
public/app/data/webmcp.js	New file: registers the search tool with the WebMCP browser API after checking for Chrome 146+ support
public/app/data/tool-defs.js	New file: centralized MCP tool schema and executeSearch wrapper shared between WebMCP and iframe transport
public/app/data/iframe-server.js	New file: MCP iframe transport server using JSON-RPC 2.0 for embedding in iframes
public/app/data/search.js	Added WebGPU acceleration for embeddings, maxChunks parameter, memory cleanup via dispose(), and navigator global declaration
public/app/components/forms.js	Exported POST_TYPE_OPTIONS and commented out service post type
package.json	Added @eslint/js, upgraded eslint to v10, upgraded prettier to v3.8.1
package-lock.json	Lock file updates for dependency upgrades
docs/webmcp.md	New documentation for WebMCP integration including tool schema, demo instructions, and example queries
.playwright-mcp/vector-search-demo.png	Screenshot for documentation

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