Rewrite README to rebrand project as IntelHQ with concise upstream acknowledgment

[Copilot]

The README still presented the project as the original World Monitor fork despite the product now being IntelHQ. This updates the repository’s primary documentation to describe IntelHQ as a standalone product while retaining brief credit to the upstream project.

• Product Repositioning

  • Replaced the root README content with IntelHQ-first messaging.
  • Updated top-level narrative to frame the repo as the current IntelHQ product, not a derivative description of the original fork.

• Concise Product Overview

  • Added compact sections for:
    • core platform value
    • product surfaces (intelhq.io, tech.intelhq.io, finance.intelhq.io)
    • essential local development commands
    • license

• Upstream Credit (Minimal, Explicit)

  • Added a short acknowledgment section that credits koala73/worldmonitor as the project origin without diluting IntelHQ branding.

## Acknowledgment

IntelHQ began as a fork of
[koala73/worldmonitor](https://github.com/koala73/worldmonitor).
We appreciate the original project and its early foundation.

Original prompt

Rewrite the readme file . The app current name is IntelHQ , it's already much different than the original repository we forked from , so let's give the original repository small credit but pack it and describe it as a new product .

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