cli (config): add default verbosity config (verbosity)

libervia/cli/base.py

@@ -71,6 +71,7 @@ class CLISettings(config.FrontendSettings, key="cli"):
     blog_preview_update_cmd: str | None = Field(
         default_factory=lambda data: data["blog_preview_open_cmd"]
     )
+    verbosity: int = Field(default=0, description="Default verbosity level")
 
 
 try:
@@ -273,10 +274,16 @@ class LiberviaCli:
 
     @property
     def verbosity(self):
+        """Output verbosity level.
+
+        If verbosity is explicitly set with command arguments, it's used; otherwise, the
+        default verbosity from settings is used.
+        """
         try:
-            return self.args.verbose
+            verbosity = self.args.verbose
         except AttributeError:
-            return 0
+            verbosity = 0
+        return verbosity or self.cli_settings.verbosity
 
     async def replay_cache(self, cache_attribute):
         """Replay cached signals
@@ -294,13 +301,15 @@ class LiberviaCli:
             for cache_data in cache:
                 await cache_data[0](*cache_data[1:])
 
-    def disp(self, msg, verbosity=0, error=False, end="\n"):
+    def disp(
+        self, msg: str, verbosity: int = 0, error: bool = False, end: str = "\n"
+    ) -> None:
         """Print a message to user
 
-        @param msg(unicode): message to print
-        @param verbosity(int): minimal verbosity to display the message
-        @param error(bool): if True, print to stderr instead of stdout
-        @param end(str): string appended after the last value, default a newline
+        @param msg: message to print
+        @param verbosity: minimal verbosity to display the message
+        @param error: if True, print to stderr instead of stdout
+        @param end: string appended after the last value, default a newline
         """
         if self.verbosity >= verbosity:
             if error:
@@ -1284,6 +1293,7 @@ class CommandBase:
 
     @property
     def verbosity(self):
+        """Output verbosity level."""
         return self.host.verbosity
 
     @property