Fix HTTPClient requesting non-existent /details endpoint

[sentry]

Summary

Fix the HTTPClient.makeRequest() method to use the /products endpoint instead of the non-existent /details endpoint.

Problem

The error_404 button in MainActivity triggers HTTPClient.makeRequest(), which sends a GET request to {domain}/details. However, the Flask backend at flask.empower-plant.com has no /details route — it only serves /products, /checkout, /product/0/info, etc. This causes every tap of that button to produce a SentryHttpClientException: HTTP Client Error with status code: 404.

Fix

Changed the endpoint in HTTPClient.makeRequest() from /details to /products, which is a valid GET endpoint on the Flask backend (the same one used by MainFragment.fetchToolsFromServer()).

Fixes ANDROID-FY

[codecov]

Codecov Report

❌ Patch coverage is 0% with 1 line in your changes missing coverage. Please review.
✅ Project coverage is 0.00%. Comparing base (814e302) to head (7552c3b).

Files with missing lines	Patch %	Lines
...c/main/java/com/example/vu/android/HTTPClient.java	0.00%	1 Missing ⚠️

Additional details and impacted files

@@          Coverage Diff          @@
##            main    #219   +/-   ##
=====================================
  Coverage   0.00%   0.00%           
=====================================
  Files         16      16           
  Lines        864     864           
  Branches      65      65           
=====================================
  Misses       864     864           

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