docs: explain skills adoption measurement and collection

scripts/strategy.test.mjs

@@ -5,7 +5,7 @@ const read = p => readFileSync(p, 'utf8');
 const model = JSON.parse(read('research/ai-adoption/strategy-model.json'));
 test('seven canonical strategy pages preserve target boundary and separate evidence', () => {
   assert.equal(model.pages.length, 7);
-  assert.equal(readdirSync('docs/strategy').length, 7);
+  assert.equal(readdirSync('docs/strategy').filter(p => p.endsWith('.mdx')).length, 7);
   for (const {id} of model.pages) {
     const page = read(`docs/strategy/${id}.mdx`);
     assert(page.includes(`id: ${id}`));
@@ -19,7 +19,7 @@ test('seven canonical strategy pages preserve target boundary and separate evide
   }
 });
 test('every metric has an actionable reader-facing contract', () => {
-  const page = read('docs/strategy/measurement.mdx');
+  const page = read('docs/strategy/reference/measurement-contracts.mdx');
   assert.equal(model.kpis.length,16);
   for (const k of model.kpis) {
     const section=page.split(`### ${k.name}\n`)[1]?.split('\n### ')[0];