Add recovery UX for Python download failures

[rugpanov]

Changes

• consume the CLI categorical Python-resolution result
• explain when setup succeeded using a compatible installed interpreter
• offer the existing Python interpreter picker after download failure or a later fallback failure, without retrying setup
• keep report links in the setup log when manual selection is the primary action
• record only categorical install-flow telemetry; no interpreter version or path

Depends on databricks/cli#6457 for the new optional result field. The bundled CLI is intentionally unchanged until that contract is released.

Tests

• TDD coverage for fallback success copy, manual recovery, no retry, action priority, cancellation, and telemetry allowlisting
• yarn test (1,023 passing, 10 pending; one pre-existing lint warning)

[rugpanov]

🤖 Integration tests ❌ 3 of 4 test jobs failed for 1a117672 (0 passed, 1 skipped).
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[rugpanov]

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Inputs:

• PR number: 2164
• Commit SHA: a2c553d90161fd0488d5433b92b0a16397d933b6

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[rugpanov]

🤖 Integration tests ✅ all 41 test jobs passed for a2c553d9.
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