Add Redmine API token authentication

redmine_reporter/config.py

@@ -6,6 +6,7 @@ load_dotenv()
 
 class Config:
     REDMINE_URL = os.getenv("REDMINE_URL", "").strip().rstrip("/")
+    REDMINE_API_KEY = os.getenv("REDMINE_API_KEY")
     REDMINE_USER = os.getenv("REDMINE_USER")
     REDMINE_PASSWORD = os.getenv("REDMINE_PASSWORD")
     REDMINE_AUTHOR = os.getenv("REDMINE_AUTHOR")
@@ -32,7 +33,9 @@ class Config:
     def validate(cls) -> None:
         if not cls.REDMINE_URL:
             raise ValueError("REDMINE_URL is required (set via env or .env)")
-        if not cls.REDMINE_USER:
-            raise ValueError("REDMINE_USER is required")
-        if not cls.REDMINE_PASSWORD:
-            raise ValueError("REDMINE_PASSWORD is required")
+        if cls.REDMINE_API_KEY:
+            return
+        if not (cls.REDMINE_USER and cls.REDMINE_PASSWORD):
+            raise ValueError(
+                "REDMINE_API_KEY is required, or set both REDMINE_USER and REDMINE_PASSWORD"
+            )