feat: Initialize monorepo structure and comprehensive documentation

This commit establishes the new monorepo architecture for the KROW Workforce platform.

Key changes include:
- Reorganized project into `frontend-web`, `mobile-apps`, `firebase`, `scripts`, and `secrets` directories.
- Updated `Makefile` to support the new monorepo layout and automate Base44 export integration.
- Fixed `scripts/prepare-export.js` for ES module compatibility and global component import resolution.
- Created and updated `CONTRIBUTING.md` for developer onboarding.
- Restructured, renamed, and translated all `docs/` files for clarity and consistency.
- Implemented an interactive internal launchpad with diagram viewing capabilities.
- Configured base Firebase project files (`firebase.json`, security rules).
- Updated `README.md` to reflect the new project structure and documentation overview.

frontend-web/src/api/integrations.js

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+import { base44 } from './base44Client';
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+export const Core = base44.integrations.Core;
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+export const InvokeLLM = base44.integrations.Core.InvokeLLM;
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+export const SendEmail = base44.integrations.Core.SendEmail;
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+export const UploadFile = base44.integrations.Core.UploadFile;
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+export const GenerateImage = base44.integrations.Core.GenerateImage;
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+export const ExtractDataFromUploadedFile = base44.integrations.Core.ExtractDataFromUploadedFile;
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+export const CreateFileSignedUrl = base44.integrations.Core.CreateFileSignedUrl;
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+export const UploadPrivateFile = base44.integrations.Core.UploadPrivateFile;
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