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Jason
2ee7cb4101
Proxy writes and session-log sync wrote to proxy_request_logs with
mismatched request_ids: only Claude on a native Anthropic backend used the
shared `session:{message_id}` key. Codex/Gemini and Claude-through-OpenAI
providers always produced distinct ids, so primary-key dedup never fired
and every real request was recorded twice.
Adds a 7-dim fingerprint dedup (app_type, 4 token counts, 2xx status,
model with case-insensitive match, ±10min window) wired into three layers:
- Write path: should_skip_session_insert() blocks duplicate session rows
before INSERT, unifying the previously-divergent Claude/Codex/Gemini
paths through a single DedupKey-based helper.
- Read path: effective_usage_log_filter() excludes already-covered session
rows from every aggregation query.
- Rollup path: same filter applied so usage_daily_rollups never absorbs
duplicates.
Also adds a covering index (idx_request_logs_dedup_lookup) so the EXISTS
subquery stays index-only, and a transform.rs regression test that pins
openai_to_anthropic id preservation - the missing piece that lets
Claude+OpenAI-compatible providers reuse the session: id scheme.