fix(crash-reporting): don't crash if triggered before init

[david-allison]

Note

Assisted-by: Claude Fable 5

Purpose / Description

The main rationale was for tests below :AnkiDroid where a reporter setup was required (and no reasonable teardown was available).

• onCreate() returns early when setupAnkiDroidApp() fails
• ContentProviders are created before Application.onCreate()

⚠️ Trade-off: a missed setReporter() call now degrades to warnings instead of failing fast.

Approach

• define UninitializedCrashReporter
• define resetForTesting

How Has This Been Tested?

⚠️ Untested

Checklist

• You have a descriptive commit message with a short title (first line, max 50 chars).
• You have commented your code, particularly in hard-to-understand areas
• You have performed a self-review of your own code
• UI changes: include screenshots of all affected screens (in particular showing any new or changed strings)
• UI Changes: You have tested your change using the Google Accessibility Scanner