feat: implement ensure_publication for zero_publication management

- Added the ensure_publication function to create and verify the zero_publication if it is missing, ensuring idempotency during database initialization.
- Integrated ensure_publication into the create_db_and_tables function to prevent zero-cache crash loops on startup.
- Introduced a self-check script to validate the ensure_publication functionality on a create_all-bootstrapped database.
- Updated various components to reflect the transition from search space to workspace, including adjustments in imports and routing paths.

surfsense_web/components/editor-panel/memory.ts

@@ -27,7 +27,7 @@ interface MemoryReadResponse {
 function getMemoryPath(scope: MemoryScope, searchSpaceId?: number | null) {
 	if (scope === "user") return "/api/v1/users/me/memory";
 	if (!searchSpaceId) throw new Error("Missing search space context");
-	return `/api/v1/searchspaces/${searchSpaceId}/memory`;
+	return `/api/v1/workspaces/${searchSpaceId}/memory`;
 }
 
 export function getMemoryLimitState(length: number, limits?: MemoryLimits | null) {