SYN-11164 add inet:http:request:fetch property

[invisig0th]

Summary

Adds an additive :fetch property to the inet:http:request form, linking an HTTP request to the fetch / page load event which caused it. Needed for Power-Ups.

• inet:http:request:fetch = <it:exec:url>

This is the v2 side of SYN-11164 (the v3 counterpart in synapse-enterprise uses it:exec:fetch).

Changes

• Model: added :fetch to inet:http:request in synapse/models/inet.py.
• Tests: test_http_request sets and asserts :fetch.
• Changelog entry (type: model).

Jira: SYN-11164

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 97.79%. Comparing base (79b5402) to head (537d6bf).

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #4989      +/-   ##
==========================================
- Coverage   97.79%   97.79%   -0.01%     
==========================================
  Files         301      301              
  Lines       64345    64345              
==========================================
- Hits        62924    62923       -1     
- Misses       1421     1422       +1     

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