[v0.9] Workflow hardening and 1.0 preparation tracker

[JUhalt]

Goal

Give the existing v0.9 roadmap one owner for scope and evidence. This tracker does not certify the application or expand the release commitment.

Completed early follow-up

• [v0.5] Eliminate phantom horizontal shelf scrolling at narrow/high-DPI widths #37 was completed early in v0.5 through PR [v0.5] Eliminate phantom horizontal shelf scrolling at narrow/high-DPI widths #51. Retain its regression coverage during the whole-application hardening pass.

Planning and completion checklist

• Create or link bounded work and evidence for migrations, recovery, backup/restore, and installer/updater certification.
• Create or link keyboard/accessibility, responsive dialog/DPI, and consistent master/detail work; retain the regression coverage from completed [v0.5] Eliminate phantom horizontal shelf scrolling at narrow/high-DPI widths #37/PR [v0.5] Eliminate phantom horizontal shelf scrolling at narrow/high-DPI widths #51.
• Scope the guided onboarding/tutorial using the shared contextual-help catalog.
• Scope File Drawer revival/rerouting polish without inventing journal-submission history.
• Review regression-suite redundancy and obsolete coverage; preserve meaningful safety coverage and record rationale.
• Maintain disposable manual-certification fixtures for major workflows.
• Record the portable project-sharing decision, including intended audience, included files, private metadata, and recovery behavior; create an implementation issue only if accepted.
• Record the installer trust/signing decision, costs, supported distribution path, and validation evidence; create an implementation issue only if accepted.
• Link every accepted item and deliberate deferral from the roadmap before closing this tracker.

No signing purchase, sharing feature, or new release date is authorized by this tracker. Completion requires evidence and explicit disposition of each roadmap item.