Task/Issue URL: https://app.asana.com/0/1208592102886666/1208759541597499/f
Tech Design URL: https://app.asana.com/0/1208592102886666/1208660326715650/f

Description:
DO NOT MERGE - this is a draft for input, not ready to go live yet.

MacOS support for crash report cohort IDs (CRCIDs) when sending crash reports.

Optional E2E tests:

• Run PIR E2E tests
  Check this to run the Personal Information Removal end to end tests. If updating CCF, or any PIR related code, tick this.

Steps to test this PR:
To cause and report a crash:

1. Launch the app and force a crash, which can be done from Debug (menu) → Simulate Crash → fatalError (or similar).
2. Launch the app again (easiest with a debugger)
3. You will be prompted to submit the crash. When submitting, watch logs for “crcid” and “crash” and you should see output from these changes confirming a CRCID is received and updated.
4. Repeat steps 2-3 again, and you should see that the CRCID received initially is what’s submitted with the next crash.

Definition of Done:

• Does this PR satisfy our Definition of Done?

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Internal references:

Pull Request Review Checklist
Software Engineering Expectations
Technical Design Template
Pull Request Documentation