docs(python-cli): add Belarusian (Беларуская) quickstart guide (#14235)

[TheRWX]

Fixes #14235

Adds a localized Belarusian (be) quickstart guide for omi-cli at sdks/python-cli/examples/quickstart.be.md.

• Comprehensive guide covering installation (pipx install omi-cli), authentication (omi auth login, OAuth browser & API keys, whoami, logout), core commands (memories, conversations with transcripts, action items, goals), JSON automation with jq, exit codes table (omi_cli/errors.py), local desktop API, and profiles.
• Isolated single-file addition (sdks/python-cli/examples/quickstart.be.md) with zero modifications to shared index files (README.md, examples/README.md) ensuring 100% clean, conflict-free mergeability.
• Validated with local preflight checks (run_checks.py).

PayPal: rwilcox413@gmail.com

[Git-on-my-level]

Thanks for the Belarusian quickstart — verified against the CLI source and it checks out cleanly:

• Exit-code table (0–5) matches omi_cli/errors.py exactly, including the 429/404 mappings.
• The --json placement guidance (global flag, before the subcommand) matches the root CLI definition.
• Auth section is accurate, including the subtle bits: auth status being offline vs whoami hitting the API, and needing omi auth logout before switching to OMI_API_KEY when a key is already stored.
• Memory/conversation/action-item/goal flags and the local Desktop API examples (OMI_LOCAL_API_URL/OMI_LOCAL_TOKEN, local search-screen --days --app) all match the current command implementations.

The Belarusian reads naturally and follows the same structure as the other localized quickstarts. One optional polish: consider adding an entry for it in examples/README.md next to the other language guides (several of the ~59 translations aren't indexed there either, so it's genuinely optional).

Left for human maintainer review — mainly the docs-surface sign-off and the bounty disposition on #14235.

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by AI on behalf of David — if you need David’s attention urgently, please @Git-on-my-level and escalate with need human response.

[kodjima33]

Winner of the Belarusian quickstart duplicate cluster (also #14249, #14254) — references tracking issue #14235, well-structured, commands verified correct. Merging.