Development (#172)

* docs: Add CLAUDE_RULES.md with strict rebrand protection rules

- Define immutable rebrand rules that cannot be violated
- Prohibit reverting rebrand for cargo check convenience
- Establish checkpoint and audit trail requirements
- Document correct error handling approach

* refactor: Complete kurdistan-sdk to pezkuwi-sdk rebrand

- Update README.md with pezkuwi-sdk branding
- Replace all kurdistan-sdk URL references with pezkuwi-sdk
- Replace kurdistan-tech with pezkuwichain in workflows
- Update email domains from @kurdistan-tech.io to @pezkuwichain.io
- Rename tool references: kurdistan-tech-publish → pezkuwi-publish
- Update runner names: kurdistan-tech-* → pezkuwichain-*
- Update analytics/forum/matrix domains to pezkuwichain.io
- Keep 'Kurdistan Tech Institute' as organization name
- Keep tech@kurdistan.gov as official government contact

pezcumulus/primitives/core/src/lib.rs

@@ -365,8 +365,8 @@ pub fn extract_relay_parent(digest: &Digest) -> Option<relay_chain::Hash> {
 /// Utilities for handling the relay-parent storage root as a digest item.
 ///
 /// This is not intended to be part of the public API, as it is a workaround for
-/// <https://github.com/pezkuwichain/kurdistan-sdk/issues/92> via
-/// <https://github.com/pezkuwichain/kurdistan-sdk/issues/169>.
+/// <https://github.com/pezkuwichain/pezkuwi-sdk/issues/92> via
+/// <https://github.com/pezkuwichain/pezkuwi-sdk/issues/169>.
 ///
 /// Runtimes using the teyrchain-system pezpallet are expected to produce this digest item,
 /// but will stop as soon as they are able to provide the relay-parent hash directly.