Email queue + async sending; legal settings and placeholders

- Add in-memory email queue with rate limiting (MAX_EMAILS_PER_HOUR)
- Bulk send to event attendees now queues and returns immediately
- Frontend shows 'Emails are being sent in the background'
- Legal pages, settings, and placeholders updates

Co-authored-by: Cursor <cursoragent@cursor.com>

backend/src/db/migrate.ts

@@ -437,6 +437,25 @@ async function migrate() {
         updated_at TEXT NOT NULL
       )
     `);
+
+    // Legal settings table for legal page placeholder values
+    await (db as any).run(sql`
+      CREATE TABLE IF NOT EXISTS legal_settings (
+        id TEXT PRIMARY KEY,
+        company_name TEXT,
+        legal_entity_name TEXT,
+        ruc_number TEXT,
+        company_address TEXT,
+        company_city TEXT,
+        company_country TEXT,
+        support_email TEXT,
+        legal_email TEXT,
+        governing_law TEXT,
+        jurisdiction_city TEXT,
+        updated_at TEXT NOT NULL,
+        updated_by TEXT REFERENCES users(id)
+      )
+    `);
   } else {
     // PostgreSQL migrations
     await (db as any).execute(sql`
@@ -822,6 +841,25 @@ async function migrate() {
         updated_at TIMESTAMP NOT NULL
       )
     `);
+
+    // Legal settings table for legal page placeholder values
+    await (db as any).execute(sql`
+      CREATE TABLE IF NOT EXISTS legal_settings (
+        id UUID PRIMARY KEY,
+        company_name VARCHAR(255),
+        legal_entity_name VARCHAR(255),
+        ruc_number VARCHAR(50),
+        company_address TEXT,
+        company_city VARCHAR(100),
+        company_country VARCHAR(100),
+        support_email VARCHAR(255),
+        legal_email VARCHAR(255),
+        governing_law VARCHAR(255),
+        jurisdiction_city VARCHAR(100),
+        updated_at TIMESTAMP NOT NULL,
+        updated_by UUID REFERENCES users(id)
+      )
+    `);
   }
 
   console.log('Migrations completed successfully!');

backend/src/db/schema.ts

@@ -281,6 +281,23 @@ export const sqliteFaqQuestions = sqliteTable('faq_questions', {
   updatedAt: text('updated_at').notNull(),
 });
 
+// Legal Settings table for legal page placeholder values
+export const sqliteLegalSettings = sqliteTable('legal_settings', {
+  id: text('id').primaryKey(),
+  companyName: text('company_name'),
+  legalEntityName: text('legal_entity_name'),
+  rucNumber: text('ruc_number'),
+  companyAddress: text('company_address'),
+  companyCity: text('company_city'),
+  companyCountry: text('company_country'),
+  supportEmail: text('support_email'),
+  legalEmail: text('legal_email'),
+  governingLaw: text('governing_law'),
+  jurisdictionCity: text('jurisdiction_city'),
+  updatedAt: text('updated_at').notNull(),
+  updatedBy: text('updated_by').references(() => sqliteUsers.id),
+});
+
 // Site Settings table for global website configuration
 export const sqliteSiteSettings = sqliteTable('site_settings', {
   id: text('id').primaryKey(),
@@ -578,6 +595,23 @@ export const pgFaqQuestions = pgTable('faq_questions', {
   updatedAt: timestamp('updated_at').notNull(),
 });
 
+// Legal Settings table for legal page placeholder values
+export const pgLegalSettings = pgTable('legal_settings', {
+  id: uuid('id').primaryKey(),
+  companyName: varchar('company_name', { length: 255 }),
+  legalEntityName: varchar('legal_entity_name', { length: 255 }),
+  rucNumber: varchar('ruc_number', { length: 50 }),
+  companyAddress: pgText('company_address'),
+  companyCity: varchar('company_city', { length: 100 }),
+  companyCountry: varchar('company_country', { length: 100 }),
+  supportEmail: varchar('support_email', { length: 255 }),
+  legalEmail: varchar('legal_email', { length: 255 }),
+  governingLaw: varchar('governing_law', { length: 255 }),
+  jurisdictionCity: varchar('jurisdiction_city', { length: 100 }),
+  updatedAt: timestamp('updated_at').notNull(),
+  updatedBy: uuid('updated_by').references(() => pgUsers.id),
+});
+
 // Site Settings table for global website configuration
 export const pgSiteSettings = pgTable('site_settings', {
   id: uuid('id').primaryKey(),
@@ -623,6 +657,7 @@ export const eventPaymentOverrides = dbType === 'postgres' ? pgEventPaymentOverr
 export const magicLinkTokens = dbType === 'postgres' ? pgMagicLinkTokens : sqliteMagicLinkTokens;
 export const userSessions = dbType === 'postgres' ? pgUserSessions : sqliteUserSessions;
 export const invoices = dbType === 'postgres' ? pgInvoices : sqliteInvoices;
+export const legalSettings = dbType === 'postgres' ? pgLegalSettings : sqliteLegalSettings;
 export const siteSettings = dbType === 'postgres' ? pgSiteSettings : sqliteSiteSettings;
 export const legalPages = dbType === 'postgres' ? pgLegalPages : sqliteLegalPages;
 export const faqQuestions = dbType === 'postgres' ? pgFaqQuestions : sqliteFaqQuestions;
@@ -657,4 +692,6 @@ export type NewSiteSettings = typeof sqliteSiteSettings.$inferInsert;
 export type LegalPage = typeof sqliteLegalPages.$inferSelect;
 export type NewLegalPage = typeof sqliteLegalPages.$inferInsert;
 export type FaqQuestion = typeof sqliteFaqQuestions.$inferSelect;
-export type NewFaqQuestion = typeof sqliteFaqQuestions.$inferInsert;
+export type NewFaqQuestion = typeof sqliteFaqQuestions.$inferInsert;
+export type LegalSettings = typeof sqliteLegalSettings.$inferSelect;
+export type NewLegalSettings = typeof sqliteLegalSettings.$inferInsert;