Add Jack and Diane living narrative

[erinepshovel-code]

What changed

• adds a new /narratives/ interpretive-fiction space
• publishes Jack & Diane: The Longhand Threshold as nine alternating journal entries backed by structured data
• tracks handwritten Articles, personal Preambles, survival and social competencies, lineaged skill portfolios, intended-action schedules, self-sufficient interdependency, and Circle formation
• adds primary navigation and home-page entry points
• adds responsive journal styling plus data, generated-route, browser, and accessibility contracts

Authority and safeguarding boundaries

The serial is explicitly fiction, not canon and not research evidence. Completing the handwritten Articles is treated as one threshold rather than automatic adulthood. The page keeps civil minor protections, physical maturity, demonstrated competence, political adulthood, and a Circle of Twelve visibly incomplete.

User impact

Readers now have a narrative place where The Interdependent Way can encounter ordinary failure, consent, accessibility, witnessed competence, repair, and interdependence over time. Future entries can be added to the data file without rewriting the page template.

Validation

• npm run check — passed (30 unit/static contracts + 9 generated-site contracts)
• npm run test:browser — passed (24 route, mathematics, browser, and automated accessibility checks)
• GitHub Pull Request workflow fix(webmcp): invalidate stale output on repository change #64 — passed
• desktop and Pixel 5 full-page renders inspected
• branch is one commit ahead of main, zero behind, with exactly 14 intended files