feat(ng-schematics): add MCP server integration for AI assistant support

[dkalinovInfra]

Summary

Adds MCP server integration to the @igniteui/angular-schematics package, enabling AI assistants (GitHub Copilot, Cursor, etc.) to interact with Ignite UI documentation and scaffolding tools via the Model Context Protocol.

Changes

Angular CLI Builder (ng run <project>:mcp)

• New Architect Builder at src/builders/mcp/ — starts the MCP server via ng run <project>:mcp
• builders.json registry added alongside existing schematics collection
• Supports --remote <url> and --debug options

Schematic (ng generate @igniteui/angular-schematics:mcp)

• Hidden schematic at src/mcp/ as a fallback entry point
• Same options: --remote, --debug

Project Scaffolding Integration

• addAIConfig() in cli-config/index.ts now also registers the mcp architect target in angular.json during project creation
• New projects get .vscode/mcp.json (for VS Code auto-discovery) and an mcp target in angular.json

Dependencies

• Added @angular-devkit/architect (^21.0.0) to support builders
• Added @igniteui/mcp-server (~15.0.0-rc.0) as dependency

Documentation

• Updated root README.md: added React/Web Components to framework list, simplified build steps, fixed typos
• Updated packages/ng-schematics/README.md with MCP server usage instructions

Usage

# Builder (preferred)
ng run my-app:mcp
ng run my-app:mcp --remote https://backend-url
ng run my-app:mcp --debug

# Schematic (alternative)
ng generate @igniteui/angular-schematics:mcp

[Copilot]

Pull request overview

Adds MCP server integration to @igniteui/angular-schematics so AI assistants can interact with Ignite UI docs/scaffolding via an Angular Architect builder (ng run <project>:mcp) and a hidden fallback schematic.

Changes:

• Introduces an mcp Architect builder plus registry (builders.json) and registers the target into angular.json during project creation / ng add.
• Adds a hidden mcp schematic as an alternative entry point and updates schematics collection metadata.
• Updates repo and package documentation and adds dependencies (@igniteui/mcp-server, @angular-devkit/architect).

Reviewed changes

Copilot reviewed 12 out of 13 changed files in this pull request and generated 4 comments.

Show a summary per file

File	Description
yarn.lock	Locks new DevKit architect dependency and its transitive deps.
README.md	Updates MCP usage/docs and general repo instructions/typos.
packages/ng-schematics/src/ng-new/index.ts	Registers MCP target during ng new flow.
packages/ng-schematics/src/mcp/schema.ts	Adds TS options interface for MCP schematic/builder.
packages/ng-schematics/src/mcp/schema.json	Adds schematic option schema for remote/debug.
packages/ng-schematics/src/mcp/index.ts	Adds hidden schematic that starts the MCP server.
packages/ng-schematics/src/collection.json	Registers the hidden mcp schematic.
packages/ng-schematics/src/cli-config/index.ts	Adds addMcpBuilderTarget() and wires it into config rules.
packages/ng-schematics/src/builders/mcp/schema.json	Adds builder option schema for remote/debug.
packages/ng-schematics/src/builders/mcp/index.ts	Implements mcp Architect builder to start the server.
packages/ng-schematics/src/builders.json	Registers the mcp builder implementation/schema.
packages/ng-schematics/README.md	Documents ng run <project>:mcp usage and options.
packages/ng-schematics/package.json	Exposes builders entry + adds architect/mcp-server deps.

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[dkalinovInfra]

@copilot apply changes based on the comments in this thread

[Copilot]

@copilot apply changes based on the comments in this thread

Applied the changes from the review in commit 89ae4e3:

1. Command injection fix (both src/builders/mcp/index.ts and src/mcp/index.ts): Replaced Util.execSync with a shell-interpolated string with spawnSync(process.execPath, [mcpEntry, ...args], { stdio: "inherit" }), passing arguments as an array — eliminating the injection risk.

2. @angular-devkit/architect version: Updated from ^0.2100.0 to ^0.2102.0 to align with the Angular 21.2.x series used by the other @angular-devkit/* dependencies, reducing duplicate @angular-devkit/core versions (was 21.0.6 + 21.2.3, now 21.2.6 + 21.2.3).