docs: use custom EMON TUI ASCII logo

Co-Authored-By: Claude (glm-4.7) <noreply@anthropic.com>

Author: smilexth

README.md

@@ -2,10 +2,17 @@
 
   <!-- Logo/Icon -->
   <pre>
-  ____   __ _  _  _  ____  ___   ____   __
- (  _ \ /  ( \/ )( \(  __)/ __) / ___) /  \
-  ) _ ((  O )) \/ ( ) _)) (__  \___ \(  O )
- (____/ \__/ \____/(____)\___) (____/ \__/
+$$$$\ $\      $\  $$$\  $\   $\       $$$$\ $\   $\ $$$\
+$  _____|$$\    $$ |$  __$\ $$\  $ |      \__$  __|$ |  $ |\_$  _|
+$ |      $$\  $$ |$ /  $ |$$\ $ |         $ |   $ |  $ |  $ |
+$$$\    $\$\$ $ |$ |  $ |$ $\$ |         $ |   $ |  $ |  $ |
+$  __|   $ \$$  $ |$ |  $ |$ \$$ |         $ |   $ |  $ |  $ |
+$ |      $ |\$  /$ |$ |  $ |$ |\$$ |         $ |   $ |  $ |  $ |
+$$$$\ $ | \_/ $ |$$$  |$ | \$ |         $ |   \$$$  |$$$\
+\________|\__|     \__| \______/ \__|  \__|         \__|    \______/ \______|
+
+
+
   </pre>
 
   <!-- Badges -->