`Fbe::Iterate` documents a `quota_aware` DSL method that does not exist

[morphqdd]

What Happens

The YARD documentation examples for both Fbe.iterate and Fbe::Iterate in lib/fbe/iterate.rb (lines 35 and 74) show:

Fbe.iterate do
  as 'issues_iterator'
  by '...'
  repeats 5
  quota_aware
  over do |repository_id, issue_id| ... end
end

But Fbe::Iterate only defines quota_unaware (quota-awareness is already the default; there is no positive-form setter). Calling quota_aware inside the block, exactly as documented, raises an error.

Verified by writing a standalone repro following the doc example verbatim and running it:

cd ~/zerocrasy/fbe && nix-shell ~/zerocrasy/shell.nix --run \
  "BUNDLE_GEMFILE=~/zerocrasy/fbe/Gemfile bundle exec ruby -I lib repro_quota_aware.rb"

Output: Some other error: NameError: undefined local variable or method 'quota_aware' for an instance of Fbe::Iterate

This is the identical bug pattern as the already-fixed issue #479 ("Fbe::Iterate documents a since DSL keyword that does not exist"), same file, same root cause, just a different keyword nobody caught that time.

What Should Happen

Either add a no-op quota_aware method to Fbe::Iterate (matching the pattern already used for lifetime_unaware/timeout_unaware), or fix the two doc examples to drop the bogus call, so the documented usage actually works.

[morphqdd]

@yegor256, please check