Fix issue 102

[DARAKU17]

Closes #102

Summary of Changes

1. Modified events.rs:

   • Added the contract_initialized helper function to publish the event with the admin address.

2. Updated initialize in lib.rs:

   • The initialize function now calls events::contract_initialized at the end of a successful first-time initialization.

3. Added test_initialize_event:

   • This new unit test verifies that the contract_initialized event is emitted on the first call to initialize.
   • It also confirms that duplicate calls to initialize (which fail with AlreadyInitialized) do not emit additional events, satisfying the security and indexing requirements.

All 16 tests in the scoutchain-scout-access package are passing.

1 running 16 tests
2 test tests::test_initialize_and_health ... ok
3 test tests::test_initialize_event ... ok
4 test tests::test_contact_without_subscription_fails - should panic ... ok
5 test tests::test_duplicate_contact_fails - should panic ... ok
6 test tests::test_fee_accumulation_overflow ... ok
7 test tests::test_full_scout_workflow ... ok
8 test tests::test_log_trial_offer_elite ... ok
9 test tests::test_subscribe_basic ... ok

10 test tests::test_subscribe_elite_and_pay_to_contact ... ok
11 test tests::test_subscription_expiry - should panic ... ok
12 test tests::test_subscription_ttl_extended_after_ledger_advance ... ok
13 test tests::test_trial_offer_rejected_for_basic_tier - should panic ... ok
14 test tests::test_trial_offer_requires_elite - should panic ... ok
15 test tests::test_trial_offer_ttl_extended_after_ledger_advance ... ok
16 test tests::test_withdraw_fees_insufficient ... ok
17 test tests::test_withdraw_fees_success ... ok
18
19 test result: ok. 16 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.21s

[drips-wave]

@DARAKU17 Great news! 🎉 Based on an automated assessment of this PR, the linked Wave issue(s) no longer count against your application limits.

You can now already apply to more issues while waiting for a review of this PR. Keep up the great work! 🚀

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