fix: support existing meal planning bridge tables

server/routes/meals.js

@@ -6,6 +6,7 @@
 
 import { createLogger } from '../logger.js';
 import express from 'express';
+import crypto from 'node:crypto';
 import * as db from '../db.js';
 import { str, oneOf, date, num, collectErrors, MAX_TITLE, MAX_TEXT, MAX_SHORT, DATE_RE } from '../middleware/validate.js';
 
@@ -70,21 +71,32 @@ function validateCookUserId(raw) {
   return { present: true, value: id, error: null };
 }
 
+function tableColumns(table) {
+  return new Set(db.get().prepare(`PRAGMA table_info(${table})`).all().map((row) => row.name));
+}
+
 function saveCookAssignment(meal, cookUserId, sourcePlanId, createdBy) {
   if (cookUserId === null) {
     db.get().prepare('DELETE FROM planned_meal_cooks WHERE meal_id = ?').run(meal.id);
     return;
   }
-  db.get().prepare(`
-    INSERT INTO planned_meal_cooks (meal_id, user_id, planned_for_date, meal_type, source_plan_id, created_by, updated_at)
-    VALUES (?, ?, ?, ?, ?, ?, strftime('%Y-%m-%dT%H:%M:%SZ', 'now'))
-    ON CONFLICT(meal_id) DO UPDATE SET
-      user_id = excluded.user_id,
-      planned_for_date = excluded.planned_for_date,
-      meal_type = excluded.meal_type,
-      source_plan_id = excluded.source_plan_id,
-      updated_at = strftime('%Y-%m-%dT%H:%M:%SZ', 'now')
-  `).run(meal.id, cookUserId, meal.date, meal.meal_type, sourcePlanId || null, createdBy);
+
+  const update = db.get().prepare(`
+    UPDATE planned_meal_cooks
+    SET user_id = ?, planned_for_date = ?, meal_type = ?, source_plan_id = ?, created_by = COALESCE(created_by, ?), updated_at = strftime('%Y-%m-%dT%H:%M:%SZ', 'now')
+    WHERE meal_id = ?
+  `).run(cookUserId, meal.date, meal.meal_type, sourcePlanId || null, createdBy, meal.id);
+  if (update.changes > 0) return;
+
+  const columns = tableColumns('planned_meal_cooks');
+  const insertColumns = ['meal_id', 'user_id', 'planned_for_date', 'meal_type', 'source_plan_id', 'created_by', 'updated_at'];
+  const values = [meal.id, cookUserId, meal.date, meal.meal_type, sourcePlanId || null, createdBy, new Date().toISOString().replace(/\.\d{3}Z$/, 'Z')];
+  if (columns.has('id')) {
+    insertColumns.unshift('id');
+    values.unshift(crypto.randomUUID());
+  }
+  const placeholders = insertColumns.map(() => '?').join(', ');
+  db.get().prepare(`INSERT INTO planned_meal_cooks (${insertColumns.join(', ')}) VALUES (${placeholders})`).run(...values);
 }
 
 function syncCookAssignmentSlot(meal) {