docs: restore long-term Strategy and separate six-month horizons

scripts/roadmap-viewer.mjs

@@ -30,7 +30,7 @@ export function roadmapViewer(html, spec) {
       return `<text x="${x+24}" y="${y+top}" font-size="${size}" class="${cls}" ${attrs}>${lines.map((line,i) => `<tspan x="${x+24}" dy="${i ? 34 : 0}">${escape(line)}</tspan>`).join('')}</text>`;
     };
     if (!node.sublabel || node.tag || /Output:|Exit:|\n/.test(node.sublabel)) throw new Error(`Roadmap content contract drift: ${node.id}`);
-    const number = spec.nodes.length === 6 ? `Step ${index+1}` : spec.nodes[0].id === 'skills' ? ['Proposed M1–4','Proposed M5–6'][index] : index === 0 ? 'First' : 'If justified';
+    const number = spec.nodes.length === 6 ? `Step ${index+1}` : spec.nodes[0].id === 'skills' ? ['Stage 1','Stage 2'][index] : index === 0 ? 'First' : 'If justified';
     const content = text(number, 40, 26, 't-primary', 'data-stage-number="" font-weight="700"')
       + text(node.label, 88, 30, 't-primary', 'data-node-label="" font-weight="700"')
       + text(node.sublabel, 160, 26, 't-muted');