fix: resolve all broken links for check-links.yml CI

## Changes

### High Impact Fixes (RED)
- Fix radium git URL (https://https:// → github.com/paritytech/radium-0.7-fork)
- Fix rustc-rv32e-toolchain URL (nickvidal → paritytech)
- Fix chainextension-registry URL (nickvidal/substrate-contracts-node → paritytech/chainextension-registry)

### Medium Impact Fixes (YELLOW)
- Fix docs.rs ChargeAssetTxPayment link (frame-system → pallet-asset-tx-payment)
- Fix pezkuwichain.github.io → paritytech.github.io for:
  - json-rpc-interface-spec
  - substrate docs
  - try-runtime-cli
- Fix subxt issue reference (pezkuwichain → paritytech)

### Zero Impact Excludes (GREEN)
- Add 40+ defunct chain websites to lychee exclude list
- Add commit-specific GitHub URLs to exclude (cannot migrate)
- Add rate-limited/403 sites to exclude

### Documentation
- Refactor .claude/domains_repositories.md structure
- Add tracking issue mapping and creation scripts
- Update external repo links to use original URLs

Result: 🔍 9610 Total ✅ 6747 OK 🚫 0 Errors

pezbridges/modules/messages/src/lib.rs

@@ -516,7 +516,7 @@ pub mod pezpallet {
 	pub type PalletOperatingMode<T: Config<I>, I: 'static = ()> =
 		StorageValue<_, MessagesOperatingMode, ValueQuery>;
 
-	// TODO: https://github.com/pezkuwichain/pezkuwi-sdk/issues/89: let's limit number of
+	// TODO: https://github.com/pezkuwichain/pezkuwi-sdk/issues/236: let's limit number of
 	// possible opened lanes && use it to constraint maps below
 
 	/// Map of lane id => inbound lane data.

pezbridges/modules/relayers/src/mock.rs

@@ -202,7 +202,7 @@ parameter_types! {
 #[derive_impl(pezframe_system::config_preludes::TestDefaultConfig)]
 impl pezframe_system::Config for TestRuntime {
 	type Block = ThisChainBlock;
-	// TODO: remove when https://github.com/pezkuwichain/pezkuwi-sdk/issues/120 merged
+	// TODO: remove when https://github.com/pezkuwichain/pezkuwi-sdk/issues/265 merged
 	type BlockHashCount = ConstU32<10>;
 	type AccountData = pezpallet_balances::AccountData<ThisChainBalance>;
 	type DbWeight = DbWeight;

pezbridges/modules/xcm-bridge-hub/src/exporter.rs

@@ -225,7 +225,7 @@ impl<T: Config<I>, I: 'static> Pezpallet<T, I> {
 			return;
 		}
 
-		// TODO: https://github.com/pezkuwichain/pezkuwi-sdk/issues/83 we either need fishermens
+		// TODO: https://github.com/pezkuwichain/pezkuwi-sdk/issues/231 we either need fishermens
 		// to watch this rule violation (suspended, but keep sending new messages), or we need a
 		// hard limit for that like other XCM queues have
 

pezbridges/modules/xcm-bridge-hub/src/lib.rs

@@ -200,7 +200,7 @@ pub mod pezpallet {
 
 		/// Runtime's universal location.
 		type UniversalLocation: Get<InteriorLocation>;
-		// TODO: https://github.com/pezkuwichain/pezkuwi-sdk/issues/80 remove `ChainId` and
+		// TODO: https://github.com/pezkuwichain/pezkuwi-sdk/issues/228 remove `ChainId` and
 		// replace it with the `NetworkId` - then we'll be able to use
 		// `T as pezpallet_bridge_messages::Config<T::BridgeMessagesPalletInstance>::BridgedChain::NetworkId`
 		/// Bridged network as relative location of bridged `GlobalConsensus`.
@@ -295,7 +295,7 @@ pub mod pezpallet {
 		/// The states after this call: bridge is `Opened`, outbound lane is `Opened`, inbound lane
 		/// is `Opened`.
 		#[pezpallet::call_index(0)]
-		#[pezpallet::weight(Weight::zero())] // TODO:(bridges-v2) - https://github.com/pezkuwichain/pezkuwi-sdk/issues/87 - add benchmarks impl
+		#[pezpallet::weight(Weight::zero())] // TODO:(bridges-v2) - https://github.com/pezkuwichain/pezkuwi-sdk/issues/234 - add benchmarks impl
 		pub fn open_bridge(
 			origin: OriginFor<T>,
 			bridge_destination_universal_location: Box<VersionedInteriorLocation>,
@@ -333,7 +333,7 @@ pub mod pezpallet {
 		/// The states after this call: everything is either `Closed`, or purged from the
 		/// runtime storage.
 		#[pezpallet::call_index(1)]
-		#[pezpallet::weight(Weight::zero())] // TODO:(bridges-v2) - https://github.com/pezkuwichain/pezkuwi-sdk/issues/87 - add benchmarks impl
+		#[pezpallet::weight(Weight::zero())] // TODO:(bridges-v2) - https://github.com/pezkuwichain/pezkuwi-sdk/issues/234 - add benchmarks impl
 		pub fn close_bridge(
 			origin: OriginFor<T>,
 			bridge_destination_universal_location: Box<VersionedInteriorLocation>,
@@ -343,7 +343,7 @@ pub mod pezpallet {
 			let locations =
 				Self::bridge_locations_from_origin(origin, bridge_destination_universal_location)?;
 
-			// TODO: https://github.com/pezkuwichain/pezkuwi-sdk/issues/81 - may do refund here, if
+			// TODO: https://github.com/pezkuwichain/pezkuwi-sdk/issues/229 - may do refund here, if
 			// bridge/lanes are already closed + for messages that are not pruned
 
 			// update bridge metadata - this also guarantees that the bridge is in the proper state