Fix post-delegation token transfer test setup

[GabrielePicco]

Summary

• Set up the test mint and regular ATAs with transactions instead of loading them as fixtures.
• Keep only the delegated eATA accounts and delegation records as fixtures, with eATA/delegation pubkeys derived by the runner.
• Reuse the existing ATA/eATA derivation helpers and the SPL associated token account instruction helper.

Tests

• cargo check --package test-runner --bin run-tests
• cargo test --test 10_post_delegation_token_transfer test_post_delegation_action_executes_spl_token_transfer_100 --profile test -- --test-threads=1 --nocapture

Summary by CodeRabbit

Release Notes

• Tests

  • Refactored integration test infrastructure to improve token account handling and validation.
  • Updated test configuration to support enhanced account management capabilities.

• Chores

  • Updated development dependencies for improved testing infrastructure.
  • Added new program configuration to the testing environment.

[coderabbitai]

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📥 Commits

Reviewing files that changed from the base of the PR and between e70d644 and 4f48ef2.

⛔ Files ignored due to path filters (2)

• test-integration/Cargo.lock is excluded by !**/*.lock
• test-integration/programs/ephemeral-token/ephemeral_token_program.so is excluded by !**/*.so

📒 Files selected for processing (4)

• test-integration/Cargo.toml
• test-integration/configs/cloning-conf.devnet.toml
• test-integration/test-cloning/Cargo.toml
• test-integration/test-cloning/tests/10_post_delegation_token_transfer.rs

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📝 Walkthrough

Walkthrough

This PR refactors the post-delegation token transfer integration test to use associated token accounts (ATAs) derived from deterministic authorities instead of standalone token accounts. The changes add spl-associated-token-account-interface to workspace and dev-dependencies, configure the validator to load the ephemeral token program, update test helper functions to query balances by pubkey, and completely rewrite the test setup to derive ATAs, initialize vault and ephemeral account structures, perform delegation, and verify post-transfer balance changes on ephemeral account clones.

Suggested reviewers

• snawaz
• thlorenz

✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Commit unit tests in branch post-delegation-token-transfer-fixtures

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