feat(billing): OSS metering foundation (usage signals + DI seams)#126

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yilu331 wants to merge 19 commits into

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billing/metering-foundation

Commits on Jun 11, 2026

feat(billing): add token + attribution + caller fields to UsageEvent
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feat(billing): OSS platform-LLM signal helper + unit tests
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feat(billing): OSS emission helpers (single source of usage-event shape)
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feat(llm): fold tool-loop trace tokens into run totals reachable by the generation service
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fix(billing): reset _last_token_totals per operation; clarify token-totals fallback
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feat(billing): meter extraction tokens + learnings generated; should_run skip charges nothing
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fix(billing): log on _extraction_input_text failure; honor should_skip
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feat(billing): default_get_caller_type dependency + tracing hook stub
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feat(billing): meter applied learnings (surfaced top-K) for production agents
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fix(billing): isolate applied-learnings metering from the search response path
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test(billing): strengthen byo extraction-tokens + negative-input assertions
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fix(billing): meter ② Learning only for profile/playbook generation; isolate emit from success path
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feat(billing): OSS no-op billing gate + endpoint wiring (T4)
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fix(billing): add @limiter.limit to get_agent_playbooks — enforce QPS cap
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fix: address review findings (iteration 1) - F003, F007, F008, F009, F016
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feat(server): create_app(mount_data_plane=False) for control-plane hosting
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fix(billing): carry request_id/session_id on Application-line metering + cleanups
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perf(billing): reuse the should-run gate's window for billing_input_tokens
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merge: bring reflexio main (evaluation-only interactions) into billing/metering-foundation
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