fix: auto-generate collectionName to fix HTTP context errors

[itstauq]

Summary

• Fixes "crypto.randomUUID is not a function" error for users accessing the app over plain HTTP
• Makes collectionName optional in the dataset creation API
• Backend now auto-generates a UUID if collectionName is not provided

Problem

crypto.randomUUID() is a Web API that only works in secure contexts (HTTPS or localhost). Users accessing the app via HTTP on a local network (e.g., http://192.168.x.x:8080) would encounter this error when creating datasets.

Solution

Move the UUID generation responsibility from the frontend to the backend, where it always works regardless of the client's security context.

Test plan

• Create a dataset over HTTPS - should work as before
• Create a dataset over HTTP (e.g., via local network IP) - should no longer error

[Copilot]

Pull request overview

This pull request fixes a browser security context error where crypto.randomUUID() fails when users access the application over plain HTTP (non-secure contexts). The fix moves UUID generation responsibility from the frontend to the backend for dataset collection names.

Changes:

• Removed frontend-side UUID generation using crypto.randomUUID() from dataset creation flows
• Made collectionName optional in the dataset creation API
• Backend now auto-generates a UUID for collectionName when not provided during validation

Reviewed changes

Copilot reviewed 4 out of 4 changed files in this pull request and generated 1 comment.

File	Description
frontend/src/composables/useDataEndpointCreation.ts	Removed generateCollectionName helper function and stopped passing auto-generated collectionName in dataset configuration
frontend/src/components/CreateDatasetDialogSimple.vue	Removed generateCollectionName helper function and stopped passing auto-generated collectionName in dataset configuration
frontend/src/api/types/index.ts	Made collectionName optional in CreateDatasetRequest interface
backend/syft_space/components/dataset_types/weaviate_local/weaviate_type.py	Added UUID import, updated schema to make collectionName optional, auto-generates UUID in validation when not provided, and updated schema description

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