docs+consent: disclose activation analytics honestly across consent modal, privacy policy, and store docs (#81)

The app ships PostHog activation-funnel analytics gated behind the same
consent flag as Sentry, but the consent modal, Settings toggle, privacy
policy, and Play Data safety draft only mentioned crash reporting. Fix
the disclosure everywhere:

- TelemetryConsentModal: body + bullets + a11y labels now cover anonymous
  usage analytics (PostHog EU) alongside crash reports
- Settings: toggle renamed 'Crash Reports & Usage Analytics', description
  names both Sentry and PostHog
- Privacy policy (md + html + live gh-pages mirror): new section 3a with
  the full event/property table, PostHog EU destination, anonymous-ID
  statement, decline/revoke (drop-on-revoke) semantics; sections 4-7, 9
  and the Apple nutrition-label addendum updated for analytics
- play-listing.md: Data safety draft declares App interactions + Device
  or other IDs (opt-in, default OFF, shared with PostHog/Sentry)
- docs/playstore.md: Data safety row flipped to re-verify with pointer
  to the new design record
- docs/analytics.md: new design record — event schema, consent gating
  incl. buffered-event drop on revoke, disclosure surfaces to keep in
  sync, verification checklist (all TODO)
- website privacy page metadata mentions analytics opt-in

Closes #63


Claude-Session: https://claude.ai/code/session_01NJKAQ6HAikWGQK7PGZ5Y4E

Co-authored-by: engineer <engineer@gray-knight-m1.local>
Co-authored-by: Claude Fable 5 <noreply@anthropic.com>

docs/playstore.md

@@ -65,7 +65,7 @@ For full company facts (D-U-N-S, address, governor, etc.) see `~/.agents/skills/
 | 4 | Feature graphic — 1024×500 PNG | Agent | ✅ done — `distribution/play-graphics/feature-graphic.png` |
 | 5 | At least 2 phone screenshots (1080×1920 or similar) | Agent | ✅ done — `distribution/play-graphics/phone-{01,02,03}.png` (1080×2400 each; 3 screens: connection, chat, diff viewer) |
 | 6 | Privacy policy — live at https://dzianisv.github.io/opencode-mobile/privacy/ | Agent | ✅ done — live & verified (HTTP 200) on gh-pages; `distribution/privacy-policy.html` (source), `distribution/privacy-policy.md` (markdown mirror) |
-| 7 | Data safety form answers (drafted in `distribution/play-listing.md`) | User (in Console after app created) | ✅ verified — no analytics/ad SDKs found; crash logs updated to "Optional (opt-in, default OFF)" per new consent gate |
+| 7 | Data safety form answers (drafted in `distribution/play-listing.md`) | User (in Console after app created) | ⚠️ re-verify — app now ships PostHog usage analytics (posthog-react-native) alongside Sentry, plus Chatwoot delivery of user-shared diagnostic reports (#88), all behind the same opt-in consent gate. Data safety draft updated: declare "App interactions" + "Device or other IDs" as collected, optional, shared with PostHog/Sentry; declare "User-submitted diagnostic reports" as collected, optional, shared with our self-hosted Chatwoot inbox. See `docs/analytics.md` |
 | 8 | Content rating questionnaire (IARC, drafted) | User (in Console after app created) | ✅ verified — no violence/sexual/gambling/UGC; "interact with other users" = No (user talks to own AI agent) |
 | 9 | App access — reviewer instructions for self-hosted opencode (drafted) | User | ✅ verified — instructions accurate; `npm install -g opencode-ai && opencode serve` flow confirmed in `play-listing.md` |
 | 10 | Sentry opt-in consent gate (for F-Droid parity + GDPR friendly) | Agent | ✅ done — `src/lib/telemetry.ts` (consent store), `src/components/TelemetryConsentModal.tsx` (first-launch modal), `app/_layout.tsx` (gated init), `app/(tabs)/settings.tsx` (Privacy section toggle) |