fix: Recognize the DrayOS pager marker with its key hint

[soulevilx]

Summary

DrayOS ends a page with:

--- MORE ---   ['q': Quit, 'Enter': New Lines, 'Space Bar': Next Page] ---

Since v1.2.0 (95afa2c), the pager regex required the line to end right after --- MORE ---. The real marker never matched, so the pager was never answered. Long output such as wan status on a Vigor 3912S (about 300 lines) stalled and failed with idle timeout after 5000ms with no output.

Changes

• src/pager.ts: match the marker with the optional DrayOS key hint. A tail that extends an already answered marker is not answered again. The hint is stripped together with a handled marker.
• Tests use the real DrayOS marker strings (unit tests and a ShellIo paging test). They failed before the fix.

Test plan

• npm run ci (Docker Node 24.21.0): audit, lint, typecheck:tests, 194 tests + per-file coverage, build, consumer smoke
• Live read-only check against a Vigor 3912S: the old regex fails with the idle timeout; the new regex returns all 294 lines of wan status with no marker left in the output

Summary by CodeRabbit

• Bug Fixes
  • Improved handling of DrayOS “MORE” prompts with optional key hints, so paging continues correctly when the hint arrives separately and the marker is answered only once.
  • Removed the marker and its hint from returned output after paging.
• Tests
  • Added coverage for DrayOS paging prompts, including key hints, trailing markers, and multi-page output.

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Review configuration:

⚙️ Run configuration

Configuration used: defaults

Review profile: CHILL

Plan: Advanced

Run ID: 78ddd1f9-6d51-4831-af2e-a39061f0a456

📥 Commits

Reviewing files that changed from the base of the PR and between c208400 and 38d70a7.

📒 Files selected for processing (2)

• src/output-accumulator.ts
• tests/shell-io-extras.test.ts

📝 Walkthrough

Walkthrough

The pager now recognizes DrayOS MORE markers with optional key hints and trailing delimiters. It avoids answering a marker again when its hint arrives, and removes the marker and hint from command output. Tests cover pager handling and ShellIo paging.

Changes

DrayOS pager handling

Layer / File(s)	Summary
Recognize and handle hinted pager markers src/pager.ts, tests/pager.test.ts, tests/shell-io-extras.test.ts	Pager detection and removal support DrayOS MORE markers with key hints. Tail handling avoids a second response when the hint arrives after the marker. Tests cover matching, removal, and paging through ShellIo.

Priority: ⬇️ Low

Estimated code review effort: 2 (Simple) | ~10 minutes

Change: Bug fix

Merge Risk: 🟡 Moderate · up to c2084

A reachable carriage-return pager sequence can stall commands until timeout; reset pager state when replacement text begins.

🚥 Pre-merge checks | ✅ 4 | ❌ 1

❌ Failed checks (1 warning)

Check name	Status	Explanation	Resolution
Docstring Coverage	⚠️ Warning	Docstring coverage is 50.00% which is insufficient. The required threshold is 80.00%. Docstring coverage is scoped to functions touched by this diff. Analyzed 2 functions across 3 files.	Write docstrings for the functions missing them to satisfy the coverage threshold.

✅ Passed checks (4 passed)

Check name	Status	Explanation
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
Title check	✅ Passed	The title clearly and concisely describes the main change: recognizing the DrayOS pager marker with its key hint.
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.

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Actionable comments posted: 1

---

• 🪄 Fix CodeRabbit comments on this PR

🤖 Prompt to fix review comments

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Inline comments:
Review comments at @src/pager.ts:
- Around line 37-39: Update OutputAccumulator so consuming pending carriage
returns and starting replacement text increments lineEpoch, allowing ShellIo to
recognize a repaint as a new line. Preserve the existing same-line hint
handling.

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ℹ️ Review info

⚙️ Run configuration

Configuration used: defaults

Review profile: CHILL

Plan: Advanced

Run ID: 0159d075-4921-4f81-8220-7e5fc380e087

📥 Commits

Reviewing files that changed from the base of the PR and between b5b19e4 and c208400.

📒 Files selected for processing (3)

• src/pager.ts
• tests/pager.test.ts
• tests/shell-io-extras.test.ts

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