feat: add Angular framework support for understand analysis

[BrahmendraBachi]

feat: add Angular framework support for /understand analysis

Summary

Adds Angular as a built-in framework in the analysis pipeline so /understand can auto-detect Angular projects (@angular/core in package.json) and inject an Angular-specific prompt addendum into file-analyzer and architecture-analyzer. The addendum documents canonical file roles (components, services, guards, *.import.const.ts, etc.), edge patterns (DI, routing, standalone composition), and layer assignments—improving knowledge-graph quality for Angular codebases.

Linked issue(s)

How I tested this

• pnpm lint
• pnpm --filter @understand-anything/core test — framework-registry.test.ts updated for 11 built-in frameworks
• pnpm test
• Manual smoke test: ran /understand on an Angular project with @angular/core in dependencies; confirmed angular appears in scan metadata and the graph includes component/DI/routing edges (e.g. depends_on from components to services, configures from route files)

Versioning

• Version bumped in all five manifests, OR
• N/A — internal/docs-only change (follows the same pattern as other framework addendums; maintainer can bump on release if desired)