feat: remove start.sh script and add appearance preferences management

- Deleted the start.sh script for container management.
- Added AGENTS.md for project guidelines and development principles.
- Introduced new SQL migration files for user appearance preferences and platform settings.
- Implemented appearance provider to manage user interface themes and preferences.
- Created branding utility to define and manage branding-related constants and types.

Co-authored-by: Copilot <copilot@github.com>

src/server/db/schema.ts

@@ -35,6 +35,48 @@ export const users = createTable("user", (d) => ({
   colorTheme: d.varchar({ length: 50 }).default("slate").notNull(),
   customColor: d.varchar({ length: 50 }),
   theme: d.varchar({ length: 20 }).default("system").notNull(),
+  interfaceTheme: d.varchar({ length: 50 }).default("beenvoice").notNull(),
+  fontPreference: d.varchar({ length: 50 }).default("brand").notNull(),
+  bodyFontPreference: d.varchar({ length: 50 }).default("brand").notNull(),
+  headingFontPreference: d.varchar({ length: 50 }).default("brand").notNull(),
+  radiusPreference: d.varchar({ length: 20 }).default("xl").notNull(),
+  sidebarStyle: d.varchar({ length: 20 }).default("floating").notNull(),
+  role: d.varchar({ length: 20 }).default("user").notNull(),
+}));
+
+export const platformSettings = createTable("platform_setting", (d) => ({
+  id: d.varchar({ length: 50 }).notNull().primaryKey().default("global"),
+  brandName: d.varchar({ length: 100 }).default("beenvoice").notNull(),
+  brandTagline: d
+    .varchar({ length: 255 })
+    .default(
+      "Simple and efficient invoicing for freelancers and small businesses",
+    )
+    .notNull(),
+  brandLogoText: d.varchar({ length: 100 }).default("beenvoice").notNull(),
+  brandIcon: d.varchar({ length: 20 }).default("$").notNull(),
+  colorTheme: d.varchar({ length: 50 }).default("slate").notNull(),
+  customColor: d.varchar({ length: 50 }),
+  theme: d.varchar({ length: 20 }).default("system").notNull(),
+  interfaceTheme: d.varchar({ length: 50 }).default("beenvoice").notNull(),
+  bodyFontPreference: d.varchar({ length: 50 }).default("brand").notNull(),
+  headingFontPreference: d.varchar({ length: 50 }).default("brand").notNull(),
+  radiusPreference: d.varchar({ length: 20 }).default("xl").notNull(),
+  sidebarStyle: d.varchar({ length: 20 }).default("floating").notNull(),
+  pdfTemplate: d.varchar({ length: 20 }).default("classic").notNull(),
+  pdfAccentColor: d.varchar({ length: 50 }).default("#111827").notNull(),
+  pdfFooterText: d
+    .varchar({ length: 120 })
+    .default("Professional Invoicing")
+    .notNull(),
+  pdfShowLogo: d.boolean().default(true).notNull(),
+  pdfShowPageNumbers: d.boolean().default(true).notNull(),
+  createdAt: d.timestamp().notNull().defaultNow(),
+  updatedAt: d
+    .timestamp()
+    .notNull()
+    .defaultNow()
+    .$onUpdate(() => new Date()),
 }));
 
 export const usersRelations = relations(users, ({ many }) => ({