Add multicall and prediction-market integration coverage; drop unused test deps

- tests/integration_multicall.rs (#926): batch validation, pause gating and
  admin surface on the real contract; pins that well-formed batches aimed at
  distinct targets reach the cross-contract boundary for aggregate and
  try_aggregate_calls (ink! 5's off-chain engine cannot execute real
  invocations, so deeper atomicity assertions need e2e infra - documented)
- tests/integration_prediction_market.rs (#927): full create -> stake ->
  settle -> claim lifecycle for both admin-resolved markets and
  oracle-settled markets with exact payout math (3960 net on equal/unequal
  pools), balance deltas, loser/reputation and double-claim rejections
- make propchain_multicall / propchain_prediction_market modules public,
  give multicall an rlib target so it links into the suite
- remove never-referenced compliance_registry and fractional dev-deps of
  tests/ (#928, #929) to stop building them for no coverage
- silence clippy::clone_on_copy firing inside ink! generated storage code

Author: danielships

Cargo.lock

@@ -1,3 +1,4 @@
+#![allow(clippy::clone_on_copy)] // fires inside ink! generated storage code
 #![cfg_attr(not(feature = "std"), no_std)]
 #![allow(unexpected_cfgs)]
 #![allow(clippy::new_without_default)]

contracts/analytics/src/lib.rs

@@ -1,3 +1,4 @@
+#![allow(clippy::clone_on_copy)] // fires inside ink! generated storage code
 #![cfg_attr(not(feature = "std"), no_std)]
 #![allow(unexpected_cfgs)]
 #![allow(

contracts/bridge/src/lib.rs

@@ -1,3 +1,4 @@
+#![allow(clippy::clone_on_copy)] // fires inside ink! generated storage code
 #![cfg_attr(not(feature = "std"), no_std, no_main)]
 #![allow(
     clippy::needless_borrows_for_generic_args,

contracts/compliance_registry/lib.rs

@@ -1,3 +1,4 @@
+#![allow(clippy::clone_on_copy)] // fires inside ink! generated storage code
 #![cfg_attr(not(feature = "std"), no_std, no_main)]
 #![allow(
     clippy::arithmetic_side_effects,

contracts/crowdfunding/src/lib.rs

@@ -1,3 +1,4 @@
+#![allow(clippy::clone_on_copy)] // fires inside ink! generated storage code
 #![cfg_attr(not(feature = "std"), no_std)]
 #![allow(unexpected_cfgs)]
 #![allow(clippy::new_without_default)]

contracts/database/src/lib.rs

@@ -1,3 +1,4 @@
+#![allow(clippy::clone_on_copy)] // fires inside ink! generated storage code
 #![cfg_attr(not(feature = "std"), no_std)]
 #![allow(unexpected_cfgs)]
 #![allow(

contracts/dex/src/lib.rs

@@ -1,3 +1,4 @@
+#![allow(clippy::clone_on_copy)] // fires inside ink! generated storage code
 #![cfg_attr(not(feature = "std"), no_std)]
 
 use ink::prelude::string::String;

contracts/factory/src/lib.rs

@@ -1,3 +1,4 @@
+#![allow(clippy::clone_on_copy)] // fires inside ink! generated storage code
 #![cfg_attr(not(feature = "std"), no_std)]
 #![allow(unexpected_cfgs)]
 

contracts/fees/src/lib.rs

@@ -1,3 +1,4 @@
+#![allow(clippy::clone_on_copy)] // fires inside ink! generated storage code
 #![cfg_attr(not(feature = "std"), no_std, no_main)]
 #![allow(
     clippy::needless_borrows_for_generic_args,