fix: move db ambient types to separate module (#10340)

* fix: move ambient types to separate modue

* chore: changeset

.changeset/dry-pants-act.md

@@ -0,0 +1,5 @@
+---
+"@astrojs/db": patch
+---
+
+Ensure `astro:db` types exist in your `db/config.ts` before running type generation.

packages/db/index.d.ts

@@ -1,5 +1,3 @@
-export { default, cli } from './dist/index.js';
+import './virtual.js';
 
-declare module 'astro:db' {
-	export { defineTable, defineDB, column, sql, NOW, TRUE, FALSE } from './dist/index.js';
-}
+export { default, cli } from './dist/index.js';

packages/db/src/index.ts

@@ -1,4 +1,3 @@
 export type { ResolvedCollectionConfig, TableConfig } from './core/types.js';
 export { cli } from './core/cli/index.js';
 export { integration as default } from './core/integration/index.js';
-export { sql, NOW, TRUE, FALSE, defineDB, defineTable, column } from './runtime/config.js';

packages/db/virtual.d.ts

@@ -0,0 +1,9 @@
+declare module 'astro:db' {
+	export const sql: typeof import('./dist/runtime/config.js').sql;
+	export const NOW: typeof import('./dist/runtime/config.js').NOW;
+	export const TRUE: typeof import('./dist/runtime/config.js').TRUE;
+	export const FALSE: typeof import('./dist/runtime/config.js').FALSE;
+	export const column: typeof import('./dist/runtime/config.js').column;
+	export const defineDB: typeof import('./dist/runtime/config.js').defineDB;
+	export const defineTable: typeof import('./dist/runtime/config.js').defineTable;
+}