feat(grammar): EBO and default construction to token_rule_t

[alandefreitas]

fix #936

In passing: fix #937

[cppalliance-bot]

An automated preview of the documentation is available at https://964.url.prtest2.cppalliance.org/index.html

If more commits are pushed to the pull request, the docs will rebuild at the same URL.

2026-01-23 00:54:52 UTC

[cppalliance-bot]

GCOVR code coverage report https://964.url.prtest2.cppalliance.org/gcovr/index.html
LCOV code coverage report https://964.url.prtest2.cppalliance.org/genhtml/index.html
Coverage Diff https://964.url.prtest2.cppalliance.org/gcovr/coverage_diff.txt

Build time: 2026-01-23 01:06:18 UTC

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 99.35%. Comparing base (aef0b8b) to head (e809ee4).
⚠️ Report is 1 commits behind head on develop.

Additional details and impacted files

@@           Coverage Diff            @@
##           develop     #964   +/-   ##
========================================
  Coverage    99.34%   99.35%           
========================================
  Files          161      161           
  Lines         8769     8770    +1     
========================================
+ Hits          8712     8713    +1     
  Misses          57       57           

Files with missing lines	Coverage Δ
include/boost/url/grammar/impl/token_rule.hpp	100.00% <100.00%> (ø)
include/boost/url/grammar/token_rule.hpp	100.00% <100.00%> (ø)

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