feat(diagnostics): active connect-failure triage + Sentry + in-app share (#2)

* feat(diagnostics): active connect-failure triage + Sentry + in-app share

Replaces the opaque "Connection Failed" / "Network request failed" dead-end
with on-device diagnostics that classify *why* a connect attempt failed.

On failure (quick connect and edit-connection test), the app now:
- runs parallel probes: target /global/health, target root, and a public
  204 endpoint (internet reachability check)
- classifies the cause: malformed-url, no-internet, server-unreachable,
  health-failed, tls-error, timeout
- shows a plain-English summary + a "Share report" button that copies a
  full report (target URL, per-probe results w/ error.cause, device/app
  info, recent log ring-buffer) to the clipboard and opens the share sheet
- captures the same structured context to Sentry (auto-upload), gated on
  EXPO_PUBLIC_SENTRY_DSN so dev/CI builds work without secrets

New: src/lib/logbuffer.ts (ring buffer + logger), src/lib/diagnostics.ts
(regex URL parse — Hermes URL is incomplete — probe + report + share),
src/lib/sentry.ts (no-op-without-DSN wrapper, scrubs basic-auth from URLs).

Wired Sentry.wrap around RootLayout and initSentry() at module load.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

* ci(sentry): wire Sentry DSN + source-map upload env into build; bump to 0.2.2

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

---------

Co-authored-by: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

app/_layout.tsx

@@ -12,10 +12,13 @@ import { useCatalog } from "../src/stores/catalog"
 import { useSettings } from "../src/stores/settings"
 import { AuthGate } from "../src/components/AuthGate"
 import * as notifications from "../src/lib/notifications"
+import { initSentry, wrap } from "../src/lib/sentry"
+
+initSentry()
 
 const queryClient = new QueryClient()
 
-export default function RootLayout() {
+function RootLayout() {
   const colorScheme = useColorScheme()
   const isDark = colorScheme === "dark"
 
@@ -118,3 +121,5 @@ export default function RootLayout() {
     </GestureHandlerRootView>
   )
 }
+
+export default wrap(RootLayout)