fix(history): resolve review advisories on carry, notices and layout

[Alan-TheGentleman]

Closes #1481

Summary

• Resolves the five non-blocking review advisories from fix(history): harden GC and delete follow-ups, query-aware Home/End #1477 and feat(history): restore responsive selector header and sidebar-aware margin #1480: three real defects fixed, one non-defect and one coverage gap proven by tests.

Changes

File	Change
extensions/history/store.ts	drainGlobal and deleteFromGlobal include global seed carry siblings; trimTornTail drops a torn partial append before the sibling fallback.
extensions/history/index.ts	Full scope radio only when width >= radio + 1 (leading space in stacked/compact).
docs/prompt-history.md	Carry files belong to the scope of the file they came from.
tests/…	A1/A3/A5 regressions, A2 proof that the session-derived path never claims hidden, A4 live overlay margin/visibility across the 140-column breakpoint and sidebar removal.

Test plan

• node --experimental-strip-types --test tests/*.test.ts → 3854 pass, 0 fail, 43 skipped.
• node scripts/check-types.mjs → no regressions against the recorded baseline.
• Native review approved.

Summary by CodeRabbit

• Bug Fixes

  • Global history now includes related carry-over entries when viewing or deleting history, preventing entries from being missed or left behind.
  • Failed attempts to hide a prompt during deletion now report the error and keep the history row, rather than implying the prompt was hidden.
  • History picker labels now fit correctly at narrow terminal widths.

• Documentation

  • Clarified that carry-over files follow the scope of their source file and are included in later deletions.

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📥 Commits

Reviewing files that changed from the base of the PR and between 50b2af7 and 13e1407.

📒 Files selected for processing (8)

• docs/prompt-history.md
• extensions/history/index.ts
• extensions/history/store.ts
• odd/tasks/history-review-advisories.md
• tests/history-delete-confirm.test.ts
• tests/history-header-layout.test.ts
• tests/history-overlay-margin.test.ts
• tests/history-scope-delete.test.ts

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