feat(docs): migrated to SSR (#DS-3683)

[artembelik]

No description provided.

[artembelik]

#1115

[github-actions]

Visit the preview URL for this PR (updated for commit 99a441f):

https://koobiq-next--prs-1121-big64vi3.web.app

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[Copilot]

Pull Request Overview

This PR migrates the documentation application to Server-Side Rendering (SSR) using Angular's built-in SSR capabilities with Express.js. The migration modernizes the build infrastructure and improves initial page load performance and SEO.

• Introduces SSR with Angular Universal using the new @angular-devkit/build-angular:application builder
• Adds Express server configuration with CommonEngine for server-side rendering
• Updates Firebase hosting configuration to support SSR output structure with browser/server folders

Reviewed Changes

Copilot reviewed 13 out of 14 changed files in this pull request and generated 12 comments.

Show a summary per file

File	Description
angular.json	Migrated from browser builder to application builder with SSR and prerendering support; reorganized schematics configuration to project root
firebase.json	Updated public paths to browser subdirectory and changed rewrite destination to index.csr.html for SSR compatibility
package.json, yarn.lock	Pinned @types/express to specific version 4.17.21 instead of range ^4
apps/docs/tsconfig.json	Removed redundant compiler options and added path mapping for docs-examples package
apps/docs/tsconfig.app.json	Added Node types, server entry files, and updated docs-examples path mapping
apps/docs/src/server.ts	New Express server implementation with CommonEngine for SSR rendering
apps/docs/src/main.server.ts	New server-side bootstrap entry point
apps/docs/src/config.server.ts	Server configuration with Window API mocks for SSR compatibility
apps/docs/src/config.ts	Extracted shared application configuration with HttpClient fetch support
apps/docs/src/main.ts	Simplified client bootstrap to use extracted configuration
apps/docs/src/app/components/anchors/anchors.component.ts	Added SSR compatibility checks for DOM APIs and return type annotations
apps/docs/README.md	Completely rewritten with clearer development setup instructions
packages/docs-examples/ng-package.json	Changed build output from node_modules to dist directory

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[NikGurev]

Кликал по страницам, такое вылезло

ERROR TypeError: this.window.addEventListener is not a function
    at _autocompleteDisabled (/Users/nguryev/Dev/work-opensource/angular-components/packages/components/autocomplete/autocomplete-trigger.directive.ts:224:54)

[artembelik]

Кликал по страницам, такое вылезло

#1129