feat(browserstack-service): render end-of-build summary entries (SDK-7358) [v8]

[shivam5643]

What is this about?

Renders end-of-build customer-visible summary entries (SDK-7358) — v8 line.

Mirrors #200 (v9 / main) onto the v8 branch. The binary returns
CustomerVisibleSummaryEntry items on StopBinSessionResponse for end-of-build messages
such as the SDK version nudge. The v8 line had neither the proto field nor a renderer, so
those messages arrived and were silently dropped for every wdio v8 customer on the CLI path.

Adds the proto field and a renderer that writes body verbatim, picks the stream from
severity, and archives a copy to the log file. Deliberately does not branch on
entryType, so future entry types need no further service change.

Stream choice: warn/warning/error -> stderr, everything else including unknown ->
stdout, so a malformed severity cannot false-alarm CI tooling watching stderr.

The tests follow this branch's existing idiom (new GrpcClient() + stream spies) rather
than copying v9's module-mock style.

Related Jira task/s

• https://browserstack.atlassian.net/browse/SDK-7358

Release (mandatory for every PR — required for the ready-for-review label)

Version bump: (required — tick exactly one)

• minor (backwards-compatible feature)
• patch (bug fix or other small change)

Release notes type: (optional)

• New Feature
• Bug Fix
• Other Improvement

Release notes (customer-facing): (optional but encouraged)

• End-of-build messages from BrowserStack — such as a notice that your SDK version is outdated or has a known issue — are now shown at the end of your test run and written to the SDK log.

Release notes (internal): (required — engineer-facing; what actually changed / why)

• Adds entries + CustomerVisibleSummaryEntry to sdk-messages.proto, matching the binary's canonical definition (field 5).
• GrpcClient.renderCustomerVisibleSummary writes body verbatim (not through the logger, whose per-line prefix would break the binary's box-border alignment) and archives a copy via BStackLogger.
• Failure-tolerant: a render error is swallowed and logged at debug; stopBinSession still returns its response.

Checklist

• Ready to review
• Has it been tested locally?

PR Validations

Run Tests: Comment RUN_TESTS to trigger sanity tests.

Testing

• 6 new tests; file passes 20/20.
• tsc exit 0.
• No manual changeset added — per this template the changeset is generated automatically from the Release section above.
• Pairs with feat(browserstack-service): render end-of-build summary entries (SDK-7358) #200 (v9). Depends on browserstack-binary#1782. Deploy order: railsApp -> binary -> SDK.

🤖 Generated with Claude Code

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