feat(access): enable table structure editing for Access databases

- Add accessCapabilities based on UCanAccess DDL support testing
- CREATE TABLE, ADD COLUMN, CREATE INDEX are supported
- DROP COLUMN, ALTER COLUMN, RENAME COLUMN, DROP INDEX are not supported
- Use H2 SQL dialect for generated DDL

apps/desktop/src/lib/databaseCapabilitySets.ts

@@ -147,6 +147,7 @@ export const TABLE_STRUCTURE_SUPPORTED_TYPES = new Set<DatabaseType>([
   "h2",
   "sundb",
   "iris",
+  "access",
 ]);
 
 export const CREATE_DATABASE_SUPPORTED_TYPES = new Set<DatabaseType>([

apps/desktop/src/lib/tableStructureCapabilities.ts

@@ -201,6 +201,13 @@ const clickhouseCapabilities = capabilities({
   comment: true,
 });
 
+const accessCapabilities = capabilities({
+  dialect: "h2",
+  createTable: true,
+  addColumn: true,
+  createIndex: true,
+});
+
 const capabilityByType: Partial<Record<DatabaseType, TableStructureCapabilities>> = {
   mysql: mysqlCapabilities,
   doris: mysqlCapabilities,
@@ -222,6 +229,7 @@ const capabilityByType: Partial<Record<DatabaseType, TableStructureCapabilities>
   "oceanbase-oracle": oracleCapabilities,
   iris: oracleCapabilities,
   h2: h2Capabilities,
+  access: accessCapabilities,
   clickhouse: clickhouseCapabilities,
 };