feat(bounty-escrow): CCI fix all tests + security auth tests

[leojay-net]

Implements Issue #783 (cross-contract interface for bounty_escrow/contracts/escrow) and fixes all related test and runtime bugs discovered during implementation.

Changes:

Fee routing fix — lock_funds and release_funds now correctly use the resolved per-token fee_recipient (from resolve_fee_config) instead of always falling back to the global config when calling route_fee
Gas budget enforcement — batch_lock_funds was silently discarding the GasBudgetExceeded error (let _ =); release_funds and partial_release were missing the gas check entirely; all three are now correctly enforced
Analytics tracking — refund() was not calling monitoring::track_operation, causing operation counts to be under-reported
Emergency withdraw invariant — after emergency_withdraw drains the token balance, all Locked/PartiallyRefunded escrow records are now marked Released with remaining_amount = 0 so INV-2 (sum_active_escrow_balances == token_balance) holds for subsequent operations
Test compilation fixes — 117 errors resolved across 9 test files (missing imports, Escrow struct field additions, update_fee_config arity mismatches, etc.)
Auth forwarding security tests — 7 new tests in test_cross_contract_interface.rs verifying that lock_funds, release_funds, partial_release, set_gas_budget, update_fee_config, and set_paused each require the correct authorisation
Test result: 823 pass / 0 fail / 3 ignored

Closes #783

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[Jagadeeshftw]

Please resolve the confilcts