feat: use wire auth token for cells - WPB-18754

[samwyndham]

Issue

This PR updates cells network clients to use the API token we use for other wire endpoints. Previously the app used fixed tokens that were input in iOS settings. Using fixed tokens is still possible if necessary via feature flag.

To achieve the above this PR:

• Shuffles things around so that the some cells state is tied to the lifetime of a logged in user (previously these were static).
• Ensures that AuthenticationManager is used to provide authentication tokens - the particular one used is that which belongs to the ClientSessionComponent as we shouldn't use multiple of these per logged in user due to race conditions

Testing

Wire cells functionality in the iOS client is currently very limited so the following steps are very specific.

1. Follow steps defined here to login: https://wearezeta.atlassian.net/wiki/spaces/PAD/pages/1948680479/2025-06-12+Wire+Cells+iOS+configuration. Use imai envionment with the login credentials for sam. Remember to set the correct feature flags.
2. Navigate to the iOS Dev 2 group
3. Attach a file using attach icon - the file will start uploading.
4. Once the file is uploaded tap send
5. Confirm the message is sent - right now the message will display as just dummy text listing the file name.

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Checklist

• Title contains a reference JIRA issue number like [WPB-XXX].
• Description is filled and free of optional paragraphs.
• Adds/updates automated tests.

[github-actions]

Test Results

    5 files    622 suites   4m 16s ⏱️
3 878 tests 3 851 ✅ 27 💤 0 ❌
3 890 runs  3 863 ✅ 27 💤 0 ❌

Results for commit 68ccc8b.

♻️ This comment has been updated with latest results.

[datadog-wireapp]

Datadog Report

Branch report: feat/wire-cells-auth-token
Commit report: aa20cb8
Test service: wire-ios-mono

✅ 0 Failed, 4160 Passed, 27 Skipped, 1m 55.61s Total Time

[caldrian]

Great work!

[jullianm]

Looks good overall, what confuses me though is that some logic seems to be related to "networking" logic (AWSClient, NodesAPI, RestAPI) yet still live in WireCells. Shouldn't it be moved to WireNetwork ?