chore: cleanup project structure and resolve client type errors

- resolve all 69 client type-checking errors for stricter TS compliance
- remove obsolete type-check baseline scripts and files
- overhaul project root with updated README.md and new DEVELOPMENT.md
- migrate to unified baseline migration strategy and cleanup docker configs
- remove redundant production and dev-specific shell scripts

server/src/scripts/migrate.ts

@@ -33,6 +33,12 @@ async function runMigrations() {
   });
 
   try {
+    await pool.query(`
+      CREATE EXTENSION IF NOT EXISTS "uuid-ossp";
+      CREATE EXTENSION IF NOT EXISTS "pg_trgm";
+      CREATE EXTENSION IF NOT EXISTS "vector";
+    `);
+
     const migrationsFolder = resolveMigrationsFolder();
     await migrate(drizzle(pool), { migrationsFolder });