* feat(dashboard): add granular usage timelines
* fix(dashboard): readable timeline legend and month-scale buckets
Session legend labels now use the real projectPath's last two segments
(app/web) instead of the sanitized project dir, which rendered as an
unreadable -Users-name-... dump and truncated in the legend.
Hourly buckets now cap at 8 days; longer ranges bucket daily. A 30-day
window rendered 720 overlapping hourly spikes, unreadable as a chart.
The browser no longer gives the backend session_other/model_other
aggregate a top-N slot, which rendered two identical Other legend
entries whenever the backend fold out-ranked a real series.
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Co-authored-by: AgentSeal <hello@agentseal.org>
- Add per-install random salt to pseudonym hash to prevent rainbow table
reversal of common project names
- Redact session details (dates, models) when project names are hashed
to prevent re-identification via cost fingerprinting
- Return structuredContent in error responses to satisfy strict MCP
clients that validate against declared outputSchema
- Remove pre-warm fire-and-forget that raced with the inflight map
- Fix empty markdown table producing malformed cells
- Add tests for session detail redaction and cross-field consistency
