fix(recall): ignore archived page titles

[Steve-too]

Summary

• exclude archived pages from the session-start recall digest
• add a regression test covering archived page titles while keeping live pages visible

Closes #490

Tests

• PYTHONPATH=src python3 -m pytest tests/test_recall.py
• uv run --extra dev python -m pytest tests/test_recall.py
• uv run --extra dev python -m ruff check src/vouch/recall.py tests/test_recall.py
• git diff --check

Summary by CodeRabbit

• Bug Fixes
  • Archived pages are now excluded from generated recall digests.
  • Digest statistics now reflect only the pages included after filtering out archived content.
• Tests
  • Added coverage to verify digests include live page content and exclude archived page content.

[coderabbitai]

No actionable comments were generated in the recent review. 🎉

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📥 Commits

Reviewing files that changed from the base of the PR and between 456742b and ba80581.

📒 Files selected for processing (2)

• src/vouch/recall.py
• tests/test_recall.py

🚧 Files skipped from review as they are similar to previous changes (2)

• src/vouch/recall.py
• tests/test_recall.py

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Walkthrough

build_digest now excludes archived pages from recall context while retaining visible active pages. A regression test verifies that archived page content is omitted and live page content remains included.

Changes

Recall digest filtering

Layer / File(s)	Summary
Archived-page exclusion and regression coverage src/vouch/recall.py, tests/test_recall.py	build_digest filters out PageStatus.ARCHIVED pages before applying visibility checks and updates hidden-page statistics; a regression test verifies the resulting digest contents.

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

🚥 Pre-merge checks | ✅ 5

✅ Passed checks (5 passed)

Check name	Status	Explanation
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
Title check	✅ Passed	The title clearly describes the main change: excluding archived page titles from recall digest generation.
Linked Issues check	✅ Passed	The code filters archived pages from build_digest and adds regression coverage, matching the linked issue's scope.
Out of Scope Changes check	✅ Passed	The changes are confined to recall filtering logic and a targeted regression test, with no unrelated edits evident.
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.

✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests

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[plind-junior]

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Actionable comments posted: 1

🤖 Prompt for all review comments with AI agents

Verify each finding against current code. Fix only still-valid issues, skip the
rest with a brief reason, keep changes minimal, and validate.

Inline comments:
In `@src/vouch/recall.py`:
- Around line 84-87: Update the stats calculation in the page filtering flow
around all_pages, pages, and stats["hidden"] to use the count of non-archived
pages as the hidden-metric denominator rather than len(all_pages). Keep archived
pages excluded from both the visible results and the visibility-hidden count.

🪄 Autofix (Beta)

Fix all unresolved CodeRabbit comments on this PR:

• Push a commit to this branch (recommended)
• Create a new PR with the fixes

---

ℹ️ Review info

⚙️ Run configuration

Configuration used: Path: .coderabbit.yaml

Review profile: CHILL

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Run ID: 24b03f9e-0a06-4133-a164-22c0d467455f

📥 Commits

Reviewing files that changed from the base of the PR and between 93c4724 and 456742b.

📒 Files selected for processing (2)

• src/vouch/recall.py
• tests/test_recall.py