feat: implement JWT auth, organizer profiles, Soroban listener, and currency rates

[Divine-designs]

PR Description
Description:

This PR implements four features across the Rust backend and Next.js frontend:

#484 — JWT Authentication Challenge-response flow: backend issues a random nonce, frontend signs it with the Stellar wallet's Ed25519 key, backend verifies the signature and issues a 24-hour JWT. Protected routes extract user_address from the Authorization: Bearer header. Nonces are stored in a new jwt_nonces table with 5-minute expiry and single-use enforcement.

#486 — Organizer Profile Management New organizer_profiles table keyed by Stellar wallet address. PUT /api/v1/profile upserts the profile with validation (display_name ≤ 50 chars, bio ≤ 500 chars). Profile data is returned in GET /api/v1/events/:id responses. Mirrored in the Next.js app at PUT /api/profile.

#490 — Soroban Event Listener Background task that long-polls the Stellar RPC getEvents endpoint every 5 seconds. Parses ticket_purchased, ticket_refunded, event_registered, and event_status_updated events. Re-org protection via MIN_CONFIRMATIONS = 2. Idempotent upserts on stellar_id.

#495 — Multiple Currency Support GET /api/v1/rates fetches USDC conversion rates from CoinGecko for 10 currencies (USD, NGN, EUR, GBP, KES, GHS, ZAR, CAD, AUD, JPY), cached in Redis for 60 seconds. Proxied to the frontend at GET /api/rates with a static fallback.

Also fixes pre-existing clippy and fmt issues across the server and contracts.

Checklist:

• PUT /api/v1/profile updates the database correctly (Implement Organizer Profile Management #486)
• Profile data is returned in event detail responses (Implement Organizer Profile Management #486)
• Protected routes return 401 if token is missing or expired (Implement JWT Authentication #484)
• user_address is extracted from JWT claims in handlers (Implement JWT Authentication #484)
• On-chain purchase appears in backend DB within 10 seconds (5s poll interval) (Implement a Webhook Listener for Soroban Events #490)
• Prices are accurately converted via CoinGecko rates endpoint (Add Support for Multiple Currencies in UI #495)
• cargo fmt, cargo clippy -D warnings, and `cargo test

Closes #484
Closes #486
Closes #490
Closes #495

[vercel]

@Divine-designs is attempting to deploy a commit to the oseh-svg's projects Team on Vercel.

A member of the Team first needs to authorize it.

[drips-wave]

@Divine-designs 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! 🚀

Learn more about application limits

[Divine-designs]

done

## Test plan

- [x] All 226 event-registry tests pass
- [x] All 143 ticket-payment tests pass
- [x] Archive eligibility boundary condition verified (exactly 30 days fails, 30 days + 1s succeeds)
- [x] Referral reward calculation assertion updated to match contract behavior

[Divine-designs]

More instances of tests passing

test result: ok. 226 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 5.69s

     Running unittests src/lib.rs (target/debug/deps/ticket_payment-78afcf555487fb39)

running 143 tests
test test::test_add_discount_hashes_and_invalid_code_rejected ... ok
test test::test_bulk_refund_rejected_for_active_event ... ok
test test::test_add_remove_token_whitelist ... ok
test test::test_affiliate_reward_capped_at_platform_fee ... ok
test test::test_cannot_remove_last_governor ... ok
test test::test_admin_refund_during_dispute ... ok
test test::test_claim_revenue_dust_swept_in_full ... ok
test test::test_bulk_refund_batching ... ok
test test::test_claim_revenue_above_dust_threshold_normal_behavior ... ok
test test::test_bulk_refund_success ... ok
test test::test_claim_automatic_refund_success ... ok
test test::test_claim_revenue_paused ... ok
test test::test_close_auction_rejects_early_closure ... ok
test test::test_day_calculation_same_day_shares_bucket ... ok
test test::test_affiliate_a_10pct_affiliate_b_5pct_same_event ... ok
test test::test_batch_purchase_success ... ok
test test::test_close_auction_rejects_when_no_bids_exist ... ok
test test::test_claim_revenue_rejects_event_not_marked_inactive ... ok
test test::test_discount_code_expired_returns_error ... ok
test test::test_confirm_payment ... ok
test test::test_close_auction_rejects_double_closure ... ok
test test::test_discount_code_invalid_code_returns_error ... ok
test test::test_create_and_apply_discount_code ... ok
test test::test_double_initialization_fails ... ok
test test::test_gas_profile_process_payment_budget ... ok
test test::test_discount_code_price_calculation ... ok
test test::test_early_bird_pricing_active ... ok
test test::test_get_asset_price_returns_oracle_price ... ok
test test::test_discount_code_max_uses_reached_returns_error ... ok
test test::test_get_asset_price_rejects_stale_oracle_price ... ok
test test::test_discount_code_one_time_use ... ok
test test::test_dispute_blocks_withdrawal ... ok
test test::test_get_payments_by_status_empty ... ok
test test::test_get_payments_by_status_all_statuses ... ok
test test::test_fee_calculation_variants ... ok
test test::test_early_bird_pricing_expired ... ok
test test::test_governance_can_update_withdrawal_cap ... ok
test test::test_get_payments_by_status_single_payment ... ok
test test::test_governance_propose_and_execute_time_lock ... ok
test test::test_governance_add_governor_requires_new_threshold ... ok
test test::test_governance_rejects_slippage_above_fifty_percent ... ok
test test::test_initialize_invalid_address ... ok
test test::test_initialize_success ... ok
test test::test_initialize_zero_platform_wallet_rejected ... ok
test test::test_governance_unauthorized_propose_and_vote ... ok
test test::test_get_payments_by_status_multiple_events ... ok
test test::test_get_payments_by_status_with_refunds ... ok
test test::test_governance_remove_governor ... ok
test test::test_get_payments_by_status_multiple_payments ... ok
test test::test_is_paused ... ok
test test::test_inventory_increment_on_successful_payment ... ok
test test::test_get_daily_withdrawn_amount_returns_zero_for_new_day ... ok
test test::test_loyalty_discount_is_capped_by_platform_fee ... ok
test test::test_integration_edge_cases ... ok
test test::test_loyalty_discount_reduces_platform_fee ... ok
test test::test_place_bid_rejects_bid_below_min_increment ... ok
test test::test_no_referral_reward_without_referrer ... ok
test test::test_no_cap_allows_unlimited_withdrawal ... ok
test test::test_payment_without_loyalty_discount_unchanged ... ok
test test::test_process_payment_extremely_high_ticket_price ... ok
test test::test_process_payment_max_supply_exceeded ... ok
test test::test_platform_fee_withdrawal_with_cap ... ok
test test::test_integration_full_platform_day ... ok
test test::test_process_payment_not_found ... ok
test test::test_process_payment_ignores_loyalty_update_failure ... ok
test test::test_process_payment_paused ... ok
test test::test_partial_refund_multi_batch_index_persisted ... ok
test test::test_partial_withdrawals_accumulate_within_day ... ok
test test::test_price_switched_event_emitted_exactly_once ... ok
test test::test_process_payment_no_code_unchanged ... ok
test test::test_process_payment_success ... ok
test test::test_process_payment_with_non_whitelisted_token ... ok
test test::test_process_payment_with_custom_fee ... ok
test test::test_proposal_expiry_blocks_execute ... ok
test test::test_process_payment_zero_amount - should panic ... ok
test test::test_proposal_executes_before_expiry ... ok
test test::test_process_payment_with_valid_discount_code ... ok
test test::test_proposal_expiry_blocks_vote ... ok
test test::test_integration_concurrent_multi_guest_sales_no_state_corruption ... ok
test test::test_process_payment_respects_event_specific_token ... ok
test test::test_refund_paused ... ok
test test::test_referral_reward_does_not_exceed_platform_fee_invariant ... ok
test test::test_process_payment_with_multiple_tokens ... ok
test test::test_remove_governor_succeeds_when_multiple_governors_exist ... ok
test test::test_protocol_revenue_reporting_views ... ok
test test::test_set_affiliate_rate_rejects_invalid_bps ... ok
test test::test_set_oracle_admin_only - should panic ... ok
test test::test_referral_reward_is_20_percent_of_platform_fee ... ok
test test::test_referral_reward_capped_when_platform_fee_is_zero ... ok
test test::test_set_pause_and_resume ... ok
test test::test_refund_rejected_after_deadline ... ok
test test::test_set_pause_unauthorized_panics - should panic ... ok
test test::test_request_guest_refund_deadline_passed ... ok
test test::test_transfer_ticket_paused ... ok
test test::test_request_guest_refund_success_with_fee ... ok
test test::test_transfer_ticket_contract_address_rejected ... ok
test test::test_transfer_ticket_no_sale_price_with_cap ... ok
test test::test_transfer_ticket_rejects_soulbound_ticket ... ok
test test::test_transfer_ticket_resale_price_exceeds_cap ... ok
test test::test_token_priced_payment_unchanged ... ok
test test::test_transfer_ticket_sale_price_no_cap ... ok
test test::test_transfer_ticket_self_transfer_rejected ... ok
test test::test_transfer_ticket_unauthorized - should panic ... ok
test test::test_transfer_ticket_zero_address_rejected ... ok
test test::test_transfer_ticket_with_fee ... ok
test test::test_transfer_ticket_resale_price_within_cap ... ok
test test::test_trigger_bulk_refund_paused ... ok
test test::test_transfer_ticket_valid_recipient_succeeds ... ok
test test::test_upgrade_preserves_initialization_addresses_and_emits_event ... ok
test test::test_upgrade_unauthorized_panics - should panic ... ok
test test::test_upgrade_verification_failure ... ok
test test::test_upgrade_works_when_paused ... ok
test test::test_transfer_ticket_success ... ok
test test::test_usd_priced_oracle_not_configured ... ok
test test::test_usd_priced_oracle_stale ... ok
test test::test_usd_priced_oracle_unavailable ... ok
test test::test_usd_priced_payment_below_slippage_fails ... ok
test test::test_unregistered_referrer_uses_default_20pct ... ok
test test::test_usd_priced_payment_above_slippage_fails ... ok
test test::test_withdraw_platform_fees_works_when_paused ... ok
test test::test_withdraw_organizer_funds ... ok
test test::test_withdraw_platform_fees ... ok
test test::test_usd_priced_payment_success ... ok
test test::test_usd_priced_payment_within_slippage ... ok
test test_e2e::test_check_in_allowed_when_no_end_time_set ... ok
test test_e2e::test_e2e_auction_flow ... ok
test test_e2e::test_check_in_blocked_after_event_end_time ... ok
test test_e2e::test_e2e_batch_purchase_then_partial_refund ... ok
test test_e2e::test_e2e_cancelled_event_automatic_refund ... ok
test test::test_withdraw_with_milestones ... ok
test test::test_withdrawal_cap_resets_across_multiple_days ... ok
test test_e2e::test_e2e_duplicate_payment_id_rejected ... ok
test test_e2e::test_e2e_full_purchase_confirm_checkin_lifecycle ... ok
test test_e2e::test_e2e_goal_failed_allows_automated_refund ... ok
test test::test_withdrawal_cap_resets_on_new_day ... ok
test test::test_withdrawal_cap_enforced_within_same_day ... ok
test test_e2e::test_e2e_goal_not_met_blocks_withdrawal ... ok
test test_e2e::test_e2e_state_consistent_after_failed_payment ... ok
test test_e2e::test_e2e_pause_blocks_operations_resume_allows ... ok
test test_e2e::test_e2e_purchase_and_refund_flow ... ok
test test_e2e::test_e2e_organizer_withdrawal_after_sales ... ok
test test_e2e::test_e2e_ticket_transfer_lifecycle ... ok
test test_e2e::test_e2e_zero_supply_unlimited_purchases ... ok

test result: ok. 143 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 6.82s

[Yunusabdul38]

LGTM