feat: initial Pezkuwi Apps rebrand from polkadot-apps

Rebranded terminology:
- Polkadot → Pezkuwi
- Kusama → Dicle
- Westend → Zagros
- Rococo → PezkuwiChain
- Substrate → Bizinikiwi
- parachain → teyrchain

Custom logos with Kurdistan brand colors (#e6007a → #86e62a):
- bizinikiwi-hexagon.svg
- sora-bizinikiwi.svg
- hezscanner.svg
- heztreasury.svg
- pezkuwiscan.svg
- pezkuwistats.svg
- pezkuwiassembly.svg
- pezkuwiholic.svg

.yarnrc.yml

@@ -0,0 +1,15 @@
+compressionLevel: mixed
+
+enableGlobalCache: false
+
+enableImmutableInstalls: false
+
+enableProgressBars: false
+
+logFilters:
+  - code: YN0013
+    level: discard
+
+nodeLinker: node-modules
+
+yarnPath: .yarn/releases/yarn-4.6.0.cjs