[AlexAndBear]

Description

• Name length: RESOURCE_NAME_MAX_BYTES is 255 like on the server. Before, a 256-byte name passed validation and failed with 400 on create/rename.

	Before	After
Create folder with 256 bytes

Related Issue

• No issue, found in the functional bug sweep of the web client

How Has This Been Tested?

• test environment: local dev server, Playwright (Chromium)
• create folder / rename: 256 bytes shows the inline error, 255 bytes works
• unit tests added

Types of changes

• Bugfix
• Enhancement (a change that doesn't break existing code or deployments)
• Breaking change (a modification that affects current functionality)
• Technical debt (addressing code that needs refactoring or improvements)
• Tests (adding or improving tests)
• Documentation (updates or additions to documentation)
• Maintenance (like dependency updates or tooling adjustments)