fix(rate-limit): disabled daily limit must report unlimited, not 0#17
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The README's FetchContent example pinned a superseded tag; consumers copy-pasting it pulled an older release than the current one. Point it at the latest tag (matches project VERSION in CMakeLists).
daily_requests_remaining() returned 0 when daily_limit<=0 ('no cap'), but
CDOClient::do_get() rejects with quota_exceeded when remaining<=0 — so
disabling the daily cap blocked EVERY request, contradicting the documented
'0 = no limit' semantics. Return INT32_MAX when disabled. Regression test in
NoDailyLimitWhenZero.
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Found by an adversarially-verified SDK correctness audit.
daily_requests_remaining()returned 0 whendaily_limit<=0(documented as 'no cap'), butCDOClient::do_get()treats remaining<=0 as quota-exceeded — so disabling the cap blocked every request. Returns INT32_MAX when disabled. Regression assertion inNoDailyLimitWhenZero. 174/174 tests pass, lint clean.