feat(CockroachDB): Add CockroachDB support (#472)

* feat(add CockroachDB): Add support in CockroachDB

* remove toggle from toolbar

* fix key

---------

Co-authored-by: Guy Ben-Aharon <baguy3@gmail.com>

src/lib/data/export-metadata/export-sql-script.ts

@@ -383,6 +383,12 @@ const generateSQLPrompt = (databaseType: DatabaseType, sqlScript: string) => {
         - **Conditional Logic**: Ensure the script uses SQLite-compatible syntax and does not include unsupported features.
     `,
         clickhouse: '',
+        cockroachdb: `
+        - **Sequence Creation**: Use \`CREATE SEQUENCE IF NOT EXISTS\` for sequence creation.
+        - **Table and Index Creation**: Use \`CREATE TABLE IF NOT EXISTS\` and \`CREATE INDEX IF NOT EXISTS\` to avoid errors if the object already exists.
+        - **Serial and Identity Columns**: For auto-increment columns, use \`SERIAL\` or \`GENERATED BY DEFAULT AS IDENTITY\`.
+        - **Conditional Statements**: Utilize PostgreSQL’s support for \`IF NOT EXISTS\` in relevant \`CREATE\` statements.
+    `,
     };
 
     const dialectInstruction = dialectInstructionMap[databaseType] ?? '';