Fix HACS/hassfest validation

* manifest.json — keys reordered to satisfy hassfest (domain and name
  first, then strictly alphabetical); GitHub URLs and codeowner casing
  updated to canonical SantaFox.
* brand/icon.png and brand/icon@2x.png — official EAC (Αρχή Ηλεκτρισμού
  Κύπρου / AHK) logo from meterreading-dso.eac.com.cy/logo192.png,
  upsampled with LANCZOS to the 256/512 sizes HACS expects. Long-term
  the right home for these is the home-assistant/brands repository.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

Author: SantaFox

custom_components/eac_cyprus/brand/icon.png

@@ -1,13 +1,13 @@
 {
   "domain": "eac_cyprus",
   "name": "EAC Distribution Web Portal",
-  "version": "0.1.0",
+  "codeowners": ["@SantaFox"],
   "config_flow": true,
-  "iot_class": "cloud_polling",
+  "dependencies": [],
+  "documentation": "https://github.com/SantaFox/ha-eac",
   "integration_type": "hub",
-  "documentation": "https://github.com/santafox/ha-eac",
-  "issue_tracker": "https://github.com/santafox/ha-eac/issues",
-  "codeowners": ["@santafox"],
+  "iot_class": "cloud_polling",
+  "issue_tracker": "https://github.com/SantaFox/ha-eac/issues",
   "requirements": ["eac-dso-portal==0.1.0"],
-  "dependencies": []
+  "version": "0.1.0"
 }