Fix Docker build issues and SQL worker configuration

- Fix .dockerignore to allow dist directory for Docker builds
- Add uint8arrays dependency for crypto operations
- Configure Vite for proper SQL worker bundling with absurd-sql
- Update Dockerfile with build context documentation
- Fix Nginx configuration for non-root user permissions
- Remove conflicting backend proxy configuration
- Add SQL worker polyfills to vite.config.common.mts

Resolves Docker build failures and ensures proper SQL database functionality
in containerized environment.

vite.config.common.mts

@@ -51,6 +51,7 @@ export async function createBuildConfig(platform: string): Promise<UserConfig> {
       format: 'es',
       plugins: () => []
     },
+
     define: {
       'process.env.NODE_ENV': JSON.stringify(process.env.NODE_ENV),
       'process.env.VITE_PLATFORM': JSON.stringify(platform),
@@ -84,6 +85,10 @@ export async function createBuildConfig(platform: string): Promise<UserConfig> {
       include: [
         '@nostr/tools',
         '@nostr/tools/nip06',
+        '@jlongster/sql.js',
+        'absurd-sql',
+        'absurd-sql/dist/indexeddb-main-thread',
+        'absurd-sql/dist/indexeddb-backend'
       ],
       exclude: isNative ? [
         'register-service-worker',