fix(ecc_dashboard): repopulate Rules and Commands trees on Refresh Data

`refresh_data` reloaded the four data lists and updated the tab labels
plus status bar, but only called `populate_agents` and `populate_skills`.
Rules were not repopulated (though `populate_rules` already existed) and
Commands had no reusable populate helper at all — initial population was
inlined in `create_commands_tab`. After clicking "Refresh Data" the tab
counts changed but the Rules and Commands treeviews still showed pre-
refresh rows, and the "Data refreshed successfully!" popup silently lied.

Extract the commands-tree insertion into `populate_commands` mirroring
`populate_agents`/`populate_rules`, then call both `populate_commands`
and `populate_rules` from `refresh_data`.

Fixes #2513

ecc_dashboard.py

@@ -656,7 +656,14 @@ Usage: This skill is automatically activated when working with related technolog
         scrollbar.pack(side=tk.RIGHT, fill=tk.Y)
         
         # Populate
-        for i, cmd in enumerate(self.commands, 1):
+        self.populate_commands(self.commands)
+
+    def populate_commands(self, commands: List[Dict]):
+        """Populate commands list"""
+        for item in self.command_tree.get_children():
+            self.command_tree.delete(item)
+
+        for i, cmd in enumerate(commands, 1):
             self.command_tree.insert('', tk.END, text=str(i),
                                    values=('/' + cmd['name'], cmd['description']))
 
@@ -868,6 +875,8 @@ Project: github.com/affaan-m/ECC"""
         # Repopulate
         self.populate_agents(self.agents)
         self.populate_skills(self.skills)
+        self.populate_commands(self.commands)
+        self.populate_rules(self.rules)
         
         # Update status
         self.status_label.config(