fix(svm): N-02 clarify documentation

[Reinis-FRP]

OZ identified following issue:

Throughout the codebase, multiple instances of misleading documentation were identified:

• Line 68 of nativeDeposit.ts states that the vault ATA is created when the route is enabled. However, route enabling has been removed in pull request #939.
• Line 1 of createVault.ts says that the script is used by the chain admin, but it can be used by anyone to create the vault PDA when necessary.

Consider correcting the aforementioned comments to improve the overall clarity and readability of the codebase.

This PR addresses the issue by clarifying the comments in the scripts.

[linear]

ACX-4024 N-02 Misleading Documentation