Round-2 claude-review findings:
- 🟡 Base-class recursion invariant: documented on embed_with_usage /
embed_batch_with_usage that a provider overriding embed()/embed_batch() to
delegate to the *_with_usage variant MUST also override that variant, or the
two recurse. (No recursion today; the shipped providers pair the overrides.)
- 🟡 Processor metering had no unit test: extracted the two-event recording
into a module-level record_indexing_usage() helper and added
tests/unit/test_processor_metering.py (value mapping, flag/zero-chunk no-ops,
best-effort failure swallowed).
- 🟡 SonarQube hotspots (python:S5332) were 3 http:// URLs in the new test
fixtures (mock hosts, never contacted) blocking the quality gate
(new_security_hotspots_reviewed). Switched them to https:// so no hotspot is
raised.
- 🟢 Zero-chunk guard: record_indexing_usage() no-ops when chunk_count == 0, so
an empty document no longer writes zero-value billing rows.
Deferred (stated on the PR): Mistral x.index-or-0 sort key (pre-existing,
equivalent), CHANGELOG note for the Ollama /api/embed switch (CHANGELOG is
commitizen-generated from commit bodies, which document it), class-var
query_token_count (safe under the per-request instance pattern).
Deck #67.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>