refactor: externalize app configuration to JSON and unify UI color scheme constants

fcco_converter/config.py

@@ -7,8 +7,59 @@ Verwendet pathlib für alle Pfadoperationen.
 
 import json
 import platform
+import sys
 from pathlib import Path
 
+# ---- Globale App-Informationen (aus config.json) ----
+APP_INFO = {
+    "app_name": "fcco Converter",
+    "app_version": "2.0.0",
+    "repo_owner": "public",
+    "repo_name": "fcco-Converter",
+    "gitea_api_base": "https://git.joelunger.de/api/v1"
+}
+
+def _load_app_info():
+    try:
+        # Finde config.json relativ zum Skript oder im PyInstaller Bundle
+        if getattr(sys, "frozen", False):
+            base_dir = Path(sys.executable).parent
+        else:
+            base_dir = Path(__file__).parent.parent
+            
+        config_path = base_dir / "config.json"
+        if config_path.exists():
+            with open(config_path, "r", encoding="utf-8") as f:
+                data = json.load(f)
+                APP_INFO.update(data)
+    except Exception:
+        pass
+
+_load_app_info()
+
+# =========================================================================
+#  Farbschema
+# =========================================================================
+
+T = {
+    "bg":           "#000000",
+    "surface":      "#111111",
+    "elevated":     "#1a1a1a",
+    "card":         "#222222",
+    "input":        "#000000",
+    "accent":       "#ffffff",
+    "accent_h":     "#e6e6e6",
+    "success":      "#ffffff",
+    "success_h":    "#e6e6e6",
+    "warn":         "#ffffff",
+    "error":        "#ffffff",
+    "text":         "#ffffff",
+    "text2":        "#b3b3b3",
+    "muted":        "#808080",
+    "border":       "#333333",
+    "btn2":         "#1a1a1a",
+    "btn2_h":       "#333333",
+}
 
 # Standardmäßige Export-Kategorien
 DEFAULT_EXPORT_PATHS = {