Disable PostHog debug logging in mobile and web

- Remove development-only PostHog config logging in mobile
- Stop enabling PostHog debug mode in mobile
- Remove web PostHog `debug` flag tied to dev environment

apps/mobile/lib/posthog.ts

···
 	"https://eu.i.posthog.com";
 const isPostHogConfigured = !!apiKey && apiKey !== "phc_your_api_key_here";
 
-if (__DEV__) {
-	console.log("PostHog config:", {
-		apiKey: apiKey ? "SET" : "NOT SET",
-		host,
-		isConfigured: isPostHogConfigured,
-	});
-}
-
 if (!isPostHogConfigured) {
 	console.warn(
 		"PostHog API key not configured. Analytics will be disabled. " +
···
 	fetchRetryCount: 3,
 	fetchRetryDelay: 3000,
 });
-
-// Enable debug mode in development for verbose logging
-if (__DEV__) {
-	posthog.debug(true);
-}
 
 export const isPostHogEnabled = isPostHogConfigured;

apps/web/src/routes/__root.tsx

···
 		ui_host: env.VITE_PUBLIC_POSTHOG_HOST,
 		defaults: "2025-05-24" as const,
 		capture_exceptions: true,
-		debug: import.meta.env.DEV,
 	};
 
 	return (