fix(server): thread locales through device.apps.launch JSON-RPC handler

[gmegidish]

The JSON-RPC device.apps.launch handler dropped the locales param: AppsLaunchParams had no Locales field and the commands.AppRequest it built never set one. Launching with a locale over JSON-RPC (the path mobilefleet uses) was a silent no-op — the CLI path was unaffected. Adds the field and threads it through.

[coderabbitai]

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ℹ️ Recent review info

⚙️ Run configuration

Configuration used: Organization UI

Review profile: CHILL

Plan: Pro

Run ID: eff84acd-dd6b-4b51-ae9d-17d3918a8516

📥 Commits

Reviewing files that changed from the base of the PR and between 9d0f39a and ce072f4.

📒 Files selected for processing (1)

• server/server.go

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Walkthrough

App launch parameters now support an optional locales JSON array. The app launch handler forwards the parsed locale values to commands.AppRequest.Locales when constructing the request.

🚥 Pre-merge checks | ✅ 4 | ❌ 1

❌ Failed checks (1 warning)

Check name	Status	Explanation	Resolution
Docstring Coverage	⚠️ Warning	Docstring coverage is 0.00% which is insufficient. The required threshold is 80.00%.	Write docstrings for the functions missing them to satisfy the coverage threshold.

✅ Passed checks (4 passed)

Check name	Status	Explanation
Title check	✅ Passed	The title clearly summarizes the main change: threading locales through the device.apps.launch JSON-RPC handler.
Description check	✅ Passed	The description accurately describes the locale parameter fix and the JSON-RPC path affected.
Linked Issues check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check	✅ Passed	Check skipped because no linked issues were found for this pull request.

✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Commit unit tests in branch fix/apps-launch-locales-jsonrpc

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