fix(mobile): repair discover categories and bootstrap iOS auth

[DIYgod]

Summary

• fix mobile discover category requests to match desktop so category pages no longer render empty results
• add an iOS auth bootstrap helper for simulator self-tests that injects a signed-in session for prod/local runs
• update the iOS e2e runner and mobile skills/docs to use bootstrap by default for non-auth self-tests on prod/local
• document Apple Silicon simulator builds to prefer active arm64-only builds for local self-test/e2e runs

Validation

• pnpm --filter @follow/mobile typecheck
• sh -n apps/mobile/e2e/run-maestro.sh
• manual iOS self-test on simulator for discover category pages
• local/prod bootstrap smoke checks

[chatgpt-codex-connector]

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[chatgpt-codex-connector]

Terminate app before writing ExpoSQLiteStorage

In the new bootstrap flow, the iOS runner launches the app first (apps/mobile/e2e/run-maestro.sh), but this script updates ExpoSQLiteStorage before calling simctl terminate. That ordering means sqlite3 writes can race with the running app’s own SQLite connection and fail with lock errors, which makes pnpm run e2e:ios:bootstrap flaky (especially on slower simulators). Terminating the app before upsertStorageValue(...) (or retrying on busy) avoids these bootstrap failures.

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