refactor(mobile): reuse repository aggregation

[richardsolomou]

Problem

Mobile independently combined team and user GitHub repository responses, so filtering and partial-failure behavior could drift from desktop/web.

Depends on #3608
Refs #2416

Changes

I switched mobile repository hooks to the existing core aggregation helpers. Picker option labels, cached view state, and pull-to-refresh messaging stay in mobile because they are rendering concerns.

How did you test this?

• Ran 2,562 core tests and the core typecheck.
• Ran 413 mobile tests.
• Ran desktop and web typechecks, Biome, and the host-boundary check.

Automatic notifications

• Publish to changelog?
• Alert Sales and Marketing teams?

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Created with PostHog Code

[github-actions]

React Doctor found no issues in the changed files. 🎉

_{Reviewed by React Doctor for commit ac5fe9a.}

[richardsolomou]

Warning

This pull request is not mergeable via GitHub because a downstack PR is open. Once all requirements are satisfied, merge this PR as a stack on Graphite.
Learn more

• feat(mobile): add Codex task parity #3654
• refactor(mobile): finalize portability boundary #3642
• refactor(mobile): reuse inbox semantics #3641
• refactor(mobile): reuse session display semantics #3640
• refactor(core): own composer model policy #3637
• refactor(mobile): reuse transport and permission policies #3635
• refactor(mobile): reuse inbox transport #3634
• refactor(mobile): reuse repository aggregation #3633 👈 (View in Graphite)
• refactor(mobile): finish shared cloud task adoption #3608
• refactor(mobile): reuse the cloud task engine #3624
• refactor(mobile): reuse core task policies #3623
• refactor(mobile): reuse the task API client #3622
• refactor(mobile): reuse task contracts and model policy #3616
• main

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[greptile-apps]

_{Reviews (1): Last reviewed commit: "Merge posthog-code/share-mobile-cloud-ta..." | Re-trigger Greptile}