feat: implement curriculum management system including automated generation, enrichment, and versioning workflows

src/lib/db.js

@@ -246,8 +246,55 @@ export function setSetting(key, value) {
   return pbUpsert('settings', `key="${key}"`, { value: String(value) }, { key, value: String(value) });
 }
 
-// ── Curriculum ────────────────────────────────────────────────────────────────
+// ── Curriculum Versions (v2) ──────────────────────────────────────────────────
 
+export async function getCurriculumVersions(status) {
+  try {
+    const opts = { sort: '-version_number' };
+    if (status) opts.filter = `status="${status}"`;
+    return await pb.collection('curriculum_versions').getFullList(opts);
+  } catch { return []; }
+}
+
+export async function getCurriculumVersion(id) {
+  try {
+    return await pb.collection('curriculum_versions').getOne(id);
+  } catch { return null; }
+}
+
+export async function getActiveCurriculumVersion() {
+  try {
+    return await pb.collection('curriculum_versions').getFirstListItem('status="active"');
+  } catch { return null; }
+}
+
+export async function getDraftCurriculumVersion() {
+  try {
+    return await pb.collection('curriculum_versions').getFirstListItem('status="draft"');
+  } catch { return null; }
+}
+
+export async function createCurriculumVersion(data) {
+  return pb.collection('curriculum_versions').create(data);
+}
+
+export async function updateCurriculumVersion(id, data) {
+  return pb.collection('curriculum_versions').update(id, data);
+}
+
+export async function getNextVersionNumber() {
+  try {
+    const latest = await pb.collection('curriculum_versions').getFirstListItem('', {
+      sort: '-version_number',
+      fields: 'version_number',
+    });
+    return (latest?.version_number || 0) + 1;
+  } catch { return 1; }
+}
+
+// ── Curriculum (legacy, v1 — deprecated) ──────────────────────────────────────
+
+/** @deprecated Use curriculum_versions (v2) instead. */
 export async function getCurriculum(year) {
   try {
     return await pb.collection('curriculum').getFullList({
@@ -257,6 +304,7 @@ export async function getCurriculum(year) {
   } catch { return []; }
 }
 
+/** @deprecated Use curriculum_versions (v2) instead. */
 export async function getCurriculumWeek(year, weekNumber) {
   try {
     return await pb.collection('curriculum').getFirstListItem(
@@ -265,11 +313,13 @@ export async function getCurriculumWeek(year, weekNumber) {
   } catch { return null; }
 }
 
+/** @deprecated Use curriculum_versions (v2) instead. */
 export function setCurriculumWeek(year, weekNumber, data) {
   return pbUpsert('curriculum', `year=${year} && week_number=${weekNumber}`,
     data, { year, week_number: weekNumber, ...data });
 }
 
+/** @deprecated Use curriculum_versions (v2) instead. */
 export async function deleteCurriculumWeek(year, weekNumber) {
   try {
     const r = await pb.collection('curriculum').getFirstListItem(
@@ -279,6 +329,7 @@ export async function deleteCurriculumWeek(year, weekNumber) {
   } catch { /* nothing to delete */ }
 }
 
+/** @deprecated Use curriculum_versions (v2) instead. */
 export async function bulkSetCurriculum(year, weeks) {
   // Delete all existing entries for this year first
   const existing = await getCurriculum(year);