Reject zero vault operations

[findolor]

Summary

• Reject zero vault IDs in SDK deposit and withdraw calldata/execution paths before building contract calls.
• Exclude zero vaults from normal withdrawable vault convenience flows.
• Preserve raw read/query support for on-chain zero-vault orders.

Validation

• cargo test -p raindex_common zero_vault
• Focused deposit, withdraw, and withdrawable-vault tests
• cargo check -p raindex_common
• Final stack: rainix-rs-static
• Final stack: wasm target cargo test for raindex_quote, raindex_bindings, raindex_js_api, raindex_common
• Final stack: npm run build && npm test in packages/raindex

Review

• Staged local review completed. A review finding about validating before allowance/ledger setup was fixed; follow-up review was clean.

Refs RAI-1063.

[linear]

RAI-1063

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• Create PR with unit tests
• Commit unit tests in branch rai-1063-vault-operation-guards

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[findolor]

Warning

This pull request is not mergeable via GitHub because a downstack PR is open. Once all requirements are satisfied, merge this PR as a stack on Graphite.
Learn more

• Surface vaultless read models #2774
• Handle vaultless deployment operations #2773
• Add builder vaultless state APIs #2772
• Reject zero vault operations #2771 👈 (View in Graphite)
• Emit vaultless add-order IO #2770
• Add vaultless order IO settings #2769
• main

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