diff --git a/server/db.js b/server/db.js
index 5ebe69f..0444d51 100644
--- a/server/db.js
+++ b/server/db.js
@@ -1437,6 +1437,51 @@ const MIGRATIONS = [
       CREATE INDEX IF NOT EXISTS idx_kids_cookbooks_recipe ON kids_cookbooks(recipe_id);
     `,
   },
+  {
+    version: 40,
+    description: 'Harmonize existing meal planning bridge tables',
+    up(database) {
+      const columns = (table) => new Set(database.prepare(`PRAGMA table_info(${table})`).all().map((row) => row.name));
+      const addColumn = (table, name, definition) => {
+        if (!columns(table).has(name)) database.exec(`ALTER TABLE ${table} ADD COLUMN ${name} ${definition}`);
+      };
+
+      addColumn('meal_cooking_rules', 'priority', "INTEGER NOT NULL DEFAULT 100");
+      addColumn('meal_cooking_rules', 'created_by', "INTEGER REFERENCES users(id) ON DELETE SET NULL");
+
+      addColumn('recipe_family_preferences', 'created_by', "INTEGER REFERENCES users(id) ON DELETE SET NULL");
+
+      addColumn('recipe_variation_meta', 'kid_suitable_confidence', "INTEGER NOT NULL DEFAULT 0");
+      addColumn('recipe_variation_meta', 'created_by', "INTEGER REFERENCES users(id) ON DELETE SET NULL");
+
+      addColumn('planned_meal_cooks', 'planned_for_date', "TEXT");
+      addColumn('planned_meal_cooks', 'source_plan_id', "TEXT");
+      addColumn('planned_meal_cooks', 'created_by', "INTEGER REFERENCES users(id) ON DELETE SET NULL");
+      database.exec(`UPDATE planned_meal_cooks SET planned_for_date = COALESCE(planned_for_date, meal_date) WHERE planned_for_date IS NULL AND meal_date IS NOT NULL`);
+
+      addColumn('meal_plan_feedback', 'plan_id', "TEXT");
+      addColumn('meal_plan_feedback', 'meal_id', "INTEGER REFERENCES meals(id) ON DELETE SET NULL");
+      addColumn('meal_plan_feedback', 'meal_type', "TEXT");
+      addColumn('meal_plan_feedback', 'action', "TEXT NOT NULL DEFAULT 'edit'");
+      addColumn('meal_plan_feedback', 'original_title', "TEXT");
+      addColumn('meal_plan_feedback', 'final_title', "TEXT");
+      addColumn('meal_plan_feedback', 'notes', "TEXT");
+      addColumn('meal_plan_feedback', 'user_id', "INTEGER REFERENCES users(id) ON DELETE SET NULL");
+      database.exec(`UPDATE meal_plan_feedback SET action = COALESCE(NULLIF(action, ''), type, 'edit') WHERE action IS NULL OR action = ''`);
+
+      addColumn('kids_cookbooks', 'content_json', "TEXT");
+      database.exec(`UPDATE kids_cookbooks SET content_json = COALESCE(content_json, payload) WHERE content_json IS NULL AND payload IS NOT NULL`);
+
+      database.exec(`
+        CREATE INDEX IF NOT EXISTS idx_meal_cooking_rules_weekday ON meal_cooking_rules(weekday, meal_type);
+        CREATE INDEX IF NOT EXISTS idx_recipe_family_preferences_user ON recipe_family_preferences(user_id, preference);
+        CREATE INDEX IF NOT EXISTS idx_planned_meal_cooks_date ON planned_meal_cooks(planned_for_date, meal_type);
+        CREATE INDEX IF NOT EXISTS idx_meal_plan_feedback_recipe ON meal_plan_feedback(recipe_id, action);
+        CREATE INDEX IF NOT EXISTS idx_meal_plan_feedback_created ON meal_plan_feedback(created_at);
+        CREATE INDEX IF NOT EXISTS idx_kids_cookbooks_recipe ON kids_cookbooks(recipe_id);
+      `);
+    },
+  },
 ];
 
 /**
diff --git a/server/routes/meal-planning.js b/server/routes/meal-planning.js
index 1778992..3e799c8 100644
--- a/server/routes/meal-planning.js
+++ b/server/routes/meal-planning.js
@@ -5,6 +5,7 @@
  */
 
 import express from 'express';
+import crypto from 'node:crypto';
 import * as db from '../db.js';
 import { createLogger } from '../logger.js';
 import { str, num, date, oneOf, collectErrors, MAX_TITLE, MAX_TEXT, MAX_SHORT } from '../middleware/validate.js';
@@ -53,6 +54,30 @@ function handleError(res, err, context) {
   res.status(err.status || 500).json({ error: err.status ? err.message : 'Internal server error.', code: err.status || 500 });
 }
 
+function currentUserId(req) {
+  return req.authUserId ?? req.session?.userId ?? null;
+}
+
+function tableColumns(table) {
+  return new Set(db.get().prepare(`PRAGMA table_info(${table})`).all().map((row) => row.name));
+}
+
+function insertWithOptionalTextId(table, columns, values) {
+  const available = tableColumns(table);
+  const insertColumns = [...columns];
+  const insertValues = [...values];
+  if (available.has('id')) {
+    const idInfo = db.get().prepare(`PRAGMA table_info(${table})`).all().find((row) => row.name === 'id');
+    if (String(idInfo?.type || '').toUpperCase() !== 'INTEGER') {
+      insertColumns.unshift('id');
+      insertValues.unshift(crypto.randomUUID());
+    }
+  }
+  const placeholders = insertColumns.map(() => '?').join(', ');
+  const result = db.get().prepare(`INSERT INTO ${table} (${insertColumns.join(', ')}) VALUES (${placeholders})`).run(...insertValues);
+  return db.get().prepare(`SELECT * FROM ${table} WHERE rowid = ?`).get(result.lastInsertRowid);
+}
+
 router.get('/cooking-rules', (_req, res) => {
   try {
     const rows = db.get().prepare(`
@@ -80,7 +105,17 @@ router.put('/cooking-rules', (req, res) => {
         if (!VALID_WEEKDAYS.includes(weekday)) throw Object.assign(new Error('Weekday must be 0-6.'), { status: 400 });
         const mealType = VALID_MEAL_TYPES.includes(rule.meal_type || rule.mealType || 'dinner') ? (rule.meal_type || rule.mealType || 'dinner') : 'dinner';
         const priority = Number.isFinite(Number(rule.priority)) ? Number(rule.priority) : 100;
-        insert.run(userId, weekday, mealType, priority, req.session.userId);
+        if (tableColumns('meal_cooking_rules').has('id')) {
+          const idInfo = db.get().prepare(`PRAGMA table_info(meal_cooking_rules)`).all().find((row) => row.name === 'id');
+          if (String(idInfo?.type || '').toUpperCase() !== 'INTEGER') {
+            db.get().prepare(`
+              INSERT INTO meal_cooking_rules (id, user_id, weekday, meal_type, priority, created_by)
+              VALUES (?, ?, ?, ?, ?, ?)
+            `).run(crypto.randomUUID(), userId, weekday, mealType, priority, currentUserId(req));
+            continue;
+          }
+        }
+        insert.run(userId, weekday, mealType, priority, currentUserId(req));
       }
     })();
     const data = db.get().prepare('SELECT * FROM meal_cooking_rules ORDER BY weekday ASC, meal_type ASC, priority DESC').all();
@@ -127,7 +162,7 @@ router.put('/recipe-signals/:recipeId', (req, res) => {
       asBool(req.body.adult_only ?? req.body.adultOnly),
       Number(req.body.swap_in_count ?? req.body.swapInCount ?? 0),
       Number(req.body.swap_away_count ?? req.body.swapAwayCount ?? 0),
-      req.session.userId
+      currentUserId(req)
     );
     const data = db.get().prepare('SELECT * FROM recipe_family_preferences WHERE recipe_id = ? AND user_id = ?').get(recipeId, userId);
     res.json({ data });
@@ -162,7 +197,7 @@ router.put('/variation-meta/:recipeId', (req, res) => {
         style = excluded.style,
         kid_suitable_confidence = excluded.kid_suitable_confidence,
         updated_at = strftime('%Y-%m-%dT%H:%M:%SZ', 'now')
-    `).run(recipeId, protein.value, style.value, kidConfidence, req.session.userId);
+    `).run(recipeId, protein.value, style.value, kidConfidence, currentUserId(req));
     const data = db.get().prepare('SELECT * FROM recipe_variation_meta WHERE recipe_id = ?').get(recipeId);
     res.json({ data });
   } catch (err) { handleError(res, err, 'PUT /variation-meta/:recipeId'); }
@@ -195,16 +230,18 @@ router.put('/cook-assignments/:mealId', (req, res) => {
     const mealType = VALID_MEAL_TYPES.includes(req.body.meal_type || req.body.mealType || meal.meal_type) ? (req.body.meal_type || req.body.mealType || meal.meal_type) : meal.meal_type;
     const errors = collectErrors([vDate]);
     if (errors.length) return res.status(400).json({ error: errors.join(' '), code: 400 });
-    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(mealId, userId, vDate.value, mealType, req.body.source_plan_id ?? req.body.sourcePlanId ?? null, req.session.userId);
+    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(userId, vDate.value, mealType, req.body.source_plan_id ?? req.body.sourcePlanId ?? null, currentUserId(req), mealId);
+    if (update.changes === 0) {
+      insertWithOptionalTextId(
+        'planned_meal_cooks',
+        ['meal_id', 'user_id', 'planned_for_date', 'meal_type', 'source_plan_id', 'created_by', 'updated_at'],
+        [mealId, userId, vDate.value, mealType, req.body.source_plan_id ?? req.body.sourcePlanId ?? null, currentUserId(req), new Date().toISOString().replace(/\.\d{3}Z$/, 'Z')]
+      );
+    }
     const data = db.get().prepare('SELECT * FROM planned_meal_cooks WHERE meal_id = ?').get(mealId);
     res.json({ data });
   } catch (err) { handleError(res, err, 'PUT /cook-assignments/:mealId'); }
@@ -237,14 +274,16 @@ router.post('/feedback', (req, res) => {
     if (errors.length) return res.status(400).json({ error: errors.join(' '), code: 400 });
     const recipeId = req.body.recipe_id || req.body.recipeId ? ensureRecipe(req.body.recipe_id ?? req.body.recipeId) : null;
     const mealId = req.body.meal_id || req.body.mealId ? ensureMeal(req.body.meal_id ?? req.body.mealId) : null;
-    const result = db.get().prepare(`
-      INSERT INTO meal_plan_feedback (plan_id, meal_id, recipe_id, slot_date, meal_type, action, original_title, final_title, notes, user_id)
-      VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?, ?)
-    `).run(
+    const columns = ['plan_id', 'meal_id', 'recipe_id', 'slot_date', 'meal_type', 'action', 'original_title', 'final_title', 'notes', 'user_id'];
+    const values = [
       req.body.plan_id ?? req.body.planId ?? null, mealId, recipeId, slotDate.value, mealType.value,
-      action.value, originalTitle.value, finalTitle.value, notes.value, req.session.userId
-    );
-    const data = db.get().prepare('SELECT * FROM meal_plan_feedback WHERE id = ?').get(result.lastInsertRowid);
+      action.value, originalTitle.value, finalTitle.value, notes.value, currentUserId(req),
+    ];
+    if (tableColumns('meal_plan_feedback').has('type')) {
+      columns.push('type');
+      values.push(action.value);
+    }
+    const data = insertWithOptionalTextId('meal_plan_feedback', columns, values);
     res.status(201).json({ data });
   } catch (err) { handleError(res, err, 'POST /feedback'); }
 });
@@ -270,11 +309,13 @@ router.post('/kids-cookbooks', (req, res) => {
     const errors = collectErrors([title]);
     if (errors.length) return res.status(400).json({ error: errors.join(' '), code: 400 });
     if (!content) return res.status(400).json({ error: 'Content object is required.', code: 400 });
-    const result = db.get().prepare(`
-      INSERT INTO kids_cookbooks (recipe_id, title, content_json, created_by)
-      VALUES (?, ?, ?, ?)
-    `).run(recipeId, title.value, JSON.stringify(content), req.session.userId);
-    const data = db.get().prepare('SELECT * FROM kids_cookbooks WHERE id = ?').get(result.lastInsertRowid);
+    const columns = ['recipe_id', 'title', 'content_json', 'created_by'];
+    const values = [recipeId, title.value, JSON.stringify(content), currentUserId(req)];
+    if (tableColumns('kids_cookbooks').has('payload')) {
+      columns.push('payload');
+      values.push(JSON.stringify(content));
+    }
+    const data = insertWithOptionalTextId('kids_cookbooks', columns, values);
     res.status(201).json({ data: { ...data, content: JSON.parse(data.content_json) } });
   } catch (err) { handleError(res, err, 'POST /kids-cookbooks'); }
 });
diff --git a/server/routes/meals.js b/server/routes/meals.js
index 8ddec35..15595d6 100644
--- a/server/routes/meals.js
+++ b/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) {