Coalesced overview polls joined to one stuck cold child each emitted
their own cold_start on the shared settle, measured from their own
start times — producing laddered pseudo-durations in telemetry.
Launch-scoped latch emits at most once, on the first cold attempt's
settle, with that attempt's duration; timedOut wiring and local-day
stamps verified already correct and locked with regression tests.
App 324/324.
A 4xx response means the server will never accept that payload;
retrying it wedges the queue at its cap and blocks all newer events.
Drop on 4xx, keep retrying on 5xx and network failures. Matches the
server's validation contract (batch cap 200).
Performance and coherence:
- Settings > General 'Refresh every' (Manual/30s/1m/3m/5m/10m), live via
RefreshCadenceContext; Manual polls only on demand
- usePolled memoKey LRU: provider/period switches paint the last-good
result instantly with a switching hairline while refreshing quietly
- quota TTL 5min + honest rate-limited copy on 429 backoff
- version-suffixed cache files (session-cache.v5.json, daily-cache.v12,
auto-minted on future bumps); legacy files never written or deleted,
adopted once when versions match: old and new binaries coexist
without clobbering (field-observed menubar-vs-desktop ping-pong)
- advisory hydration lock: concurrent cold starts share one scan
(wait-then-read-warm), stale/dead locks self-heal, never a
correctness gate
Telemetry v1 + onboarding (desktop only, per owner decisions):
- first-launch onboarding (3 feature screens + consent); region-split
default (EU/EEA/UK/CH off, elsewhere on, unknown off); nothing sends
before consent completion or while off; dev builds never send
- anonymous install UUID, rotated on opt-out; day-granularity events,
cost buckets only; whitelisted names; 200-event queue, 5min flush
- Settings > Privacy live toggle replaces the static claim
Zero computed-number changes. App 316/316, root 1805.
Wire contract targets api.codeburn.app/v1/telemetry (Worker follows).
