test: withdraw above the protocol 14 minimum in the JS withdrawal tests

[QuantumExplorer]

Issue being fixed or feature implemented

Since eaf5d4c (withdrawal transaction accounting) the Core fee of the asset unlock transaction is carved out of the withdrawn amount, so identity credit withdrawal structure v2 requires at least min_withdrawal_amount plus that fee: 1,190,000 credits at 1 duff per byte. The wasm-sdk functional test and the platform-test-suite e2e withdrawal test still withdrew exactly the old minimum of 1,000,000 credits, so the "Packages functional tests" and "Test Suite" jobs fail on every pull request against v4.2-dev (for example on #4613 and #4780) with:

Credit withdrawal amount 1000000 must be greater or equal to 1190000 and less than 50000000000000

What was done?

Both tests withdraw 2,000,000 credits, leaving headroom above the new minimum, with the comments updated to explain where the minimum comes from. No production code changes.

How Has This Been Tested?

Amounts checked against min_withdrawal_amount_with_core_fee (SystemLimits::min_withdrawal_amount 1,000,000 plus ASSET_UNLOCK_TX_SIZE times the fee rate times CREDITS_PER_DUFF). The identities in both tests are funded with far more than the new amounts. CI on this PR runs the affected suites.

Breaking Changes

None.

Checklist:

• I have performed a self-review of my own code
• I have commented my code, particularly in hard-to-understand areas
• I have added or updated relevant unit/integration/functional/e2e tests
• I have added "!" to the title and described breaking changes in the corresponding section if my code contains any
• I have made corresponding changes to the documentation if needed

For repository code-owners and collaborators only

• I have assigned this pull request to a milestone

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📥 Commits

Reviewing files that changed from the base of the PR and between 11a921d and f9ad556.

📒 Files selected for processing (2)

• packages/platform-test-suite/test/e2e/withdrawals.spec.js
• packages/wasm-sdk/tests/functional/transitions/identity.spec.ts

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[thepastaclaw]

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