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

bizinikiwi/pezframe/contracts/src/migration/v10.rs

@@ -16,7 +16,7 @@
 // limitations under the License.
 
 //! Don't rely on reserved balances keeping an account alive
-//! See <https://github.com/pezkuwichain/pezkuwi-sdk/issues/44>.
+//! See <https://github.com/pezkuwichain/pezkuwi-sdk/issues/212>.
 
 use crate::{
 	exec::AccountIdOf,

bizinikiwi/pezframe/contracts/src/migration/v11.rs

@@ -16,7 +16,7 @@
 // limitations under the License.
 
 //! Overflowing bounded DeletionQueue.
-//! See <https://github.com/pezkuwichain/pezkuwi-sdk/issues/47>.
+//! See <https://github.com/pezkuwichain/pezkuwi-sdk/issues/214>.
 
 use crate::{
 	migration::{IsFinished, MigrationStep},
@@ -74,7 +74,7 @@ pub struct Migration<T: Config> {
 impl<T: Config> MigrationStep for Migration<T> {
 	const VERSION: u16 = 11;
 
-	// It would be more correct to make our use the now removed [DeletionQueueDepth](https://github.com/pezkuwichain/pezkuwi-sdk/issues/47/files#diff-70e9723e9db62816e35f6f885b6770a8449c75a6c2733e9fa7a245fe52c4656c)
+	// It would be more correct to make our use the now removed [DeletionQueueDepth](https://github.com/pezkuwichain/pezkuwi-sdk/issues/214/files#diff-70e9723e9db62816e35f6f885b6770a8449c75a6c2733e9fa7a245fe52c4656c)
 	// but in practice the queue is always empty, so 128 is a good enough approximation for not
 	// underestimating the weight of our migration.
 	fn max_step_weight() -> Weight {

bizinikiwi/pezframe/contracts/src/migration/v13.rs

@@ -16,7 +16,7 @@
 // limitations under the License.
 
 //! Add `delegate_dependencies` to `ContractInfo`.
-//! See <https://github.com/pezkuwichain/pezkuwi-sdk/issues/49>.
+//! See <https://github.com/pezkuwichain/pezkuwi-sdk/issues/216>.
 
 use crate::{
 	migration::{IsFinished, MigrationStep},

bizinikiwi/pezframe/contracts/src/migration/v14.rs

@@ -17,7 +17,7 @@
 
 //! Update the code owner balance, make the code upload deposit balance to be held instead of
 //! reserved. Since [`Currency`](pezframe_support::traits::Currency) has been
-//! [deprecated](https://github.com/pezkuwichain/pezkuwi-sdk/issues/40), we need the deposits to be
+//! [deprecated](https://github.com/pezkuwichain/pezkuwi-sdk/issues/209), we need the deposits to be
 //! handled by the [`pezframe_support::traits::fungible`] traits.
 
 use crate::{

bizinikiwi/pezframe/contracts/src/migration/v15.rs

@@ -17,7 +17,7 @@
 
 //! Move contracts' _reserved_ balance from the `deposit_account` to be _held_ in the contract's
 //! account instead. Since [`Currency`](pezframe_support::traits::Currency) has been
-//! [deprecated](https://github.com/pezkuwichain/pezkuwi-sdk/issues/40), we need the deposits to be
+//! [deprecated](https://github.com/pezkuwichain/pezkuwi-sdk/issues/209), we need the deposits to be
 //! handled by the [`pezframe_support::traits::fungible`] traits instead. For this transfer the
 //! balance from the deposit account to the contract's account and hold it in there.
 //! Then the deposit account is not needed anymore and we can get rid of it.

bizinikiwi/pezframe/contracts/src/migration/v16.rs

@@ -16,7 +16,7 @@
 // limitations under the License.
 
 //! Remove ED from storage base deposit.
-//! See <https://github.com/pezkuwichain/pezkuwi-sdk/issues/116>.
+//! See <https://github.com/pezkuwichain/pezkuwi-sdk/issues/261>.
 
 use crate::{
 	migration::{IsFinished, MigrationStep},