App: send usage batches to PostHog Cloud EU from a background thread (#238)

ureq over rustls (ring) with the OS certificate verifier. The project key
is the build-time FIELDCRAFT_POSTHOG_KEY; without it nothing is asked or
sent. FIELDCRAFT_TELEMETRY=0 turns it off; --control and CI runs only with
FIELDCRAFT_TELEMETRY=1. A failed post drops its batch.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01UhhZMBTviDQxZvwnyP89fo
This commit is contained in:
jyvikoandClaude Opus 5.5 authored and Irakli Kourtis committed 2026-10-15 01:07:28 -04:00
1 parent 79d583ea0f
commit ed9ec7748d
5 files changed
+1586 -34

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@@ -431,6 +431,12 @@ version = "0.22.1"
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