fix: normalize legacy flag names in telemetry and make doctor's logs check follow the drain wiring

[evlogai]

Two telemetry findings from production CLI data, fixed end to end.

1. --no-header split across two flag keys

Old CLI versions (@evlog/cli < 0.5.0) recorded raw citty args, so the flags breakdown tallied no-header and noHeader separately, and the _ positional bucket leaked through. The client sanitizer (@evlog/telemetry) has emitted a single normalized key since 0.5.0, but historical rows stay in the database as they were reported.

Flag keys are now normalized in the adoption breakdown (getAdoptionForFilter), which both the dashboard and the telemetry-adoption MCP tool use: kebab-case keys are camel-cased like the client does, _ is dropped, and rows that collapse onto the same key/value merge their counts. This covers historical and new rows.

• apps/telemetry/shared/utils/adoption-shape.ts: normalizeFlagKey / normalizeFlagRows
• apps/telemetry/server/utils/telemetry-queries.ts: flags breakdown goes through normalizeFlagRows

2. doctor never detects a logs sink

The logs check passed only when .evlog/logs existed, and the fs drain creates it lazily on first write, so every fresh setup reported "no local sink yet". The check is now driven by the drain wiring, not the filesystem:

• a physical sink (.evlog/logs) is still reported with its file count;
• a wired fs drain counts as a sink before the first event, since the drain creates the directory on first write. Doctor detects the wiring in the drain plugin (server/plugins/evlog-drain*.ts or any plugin under server/plugins) and the Next factory (lib/evlog.ts / src/lib/evlog.ts), or the EVLOG_FS_DIR / NUXT_EVLOG_FS_DIR env;
• a project with no local drain gets no logs check at all — the fs drain is optional, and doctor no longer warns about a sink nothing expects. The cli.LOGS_SINK_MISSING catalog code is gone with the warning.

Tests

• packages/cli/test/doctor.test.ts: wired drain → sink present before the first event; no drain wiring → check omitted (both failing regression first); env-configured drain dir; empty physical sink still present; debug findings no longer emit cli.LOGS_SINK_MISSING
• apps/telemetry/test/adoption-shape.test.ts: normalization merges the two spellings and drops _

Checks

• pnpm run lint: 22/22 tasks pass
• pnpm run typecheck: 27/27 tasks pass
• pnpm run test: 22/22 tasks pass

Closes #547

[changeset-bot]

🦋 Changeset detected

Latest commit: db6e40a

The changes in this PR will be included in the next version bump.

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@evlog/cli	Patch

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Project	Deployment	Actions	Updated (UTC)
evlog-docs	Ready	Preview, v0	Aug 9, 2026 8:40pm
evlog-render-lab	Ready	Preview	Aug 9, 2026 8:40pm

3 Skipped Deployments

Project	Deployment	Actions	Updated (UTC)
evi	Ignored	Preview	Aug 9, 2026 8:40pm
evlog-telemetry	Ignored	Preview	Aug 9, 2026 8:40pm
just-use-evlog	Ignored	Preview	Aug 9, 2026 8:40pm

[github-actions]

Thank you for following the naming conventions! 🙏

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commit: db6e40a