Extract CPU model number only to save display space

- Parse Intel models (i3/i5/i7/i9-XXXX) from full name
- Parse AMD Ryzen models (Ryzen X XXXX) from full name
- Display format: "i7-9700 (8 cores)" instead of full CPU name
- Reduces CPU section width significantly

Cargo.lock

@@ -279,7 +279,7 @@ checksum = "a1d728cc89cf3aee9ff92b05e62b19ee65a02b5702cff7d5a377e32c6ae29d8d"
 
 [[package]]
 name = "cm-dashboard"
-version = "0.1.239"
+version = "0.1.240"
 dependencies = [
  "anyhow",
  "chrono",
@@ -301,7 +301,7 @@ dependencies = [
 
 [[package]]
 name = "cm-dashboard-agent"
-version = "0.1.239"
+version = "0.1.240"
 dependencies = [
  "anyhow",
  "async-trait",
@@ -325,7 +325,7 @@ dependencies = [
 
 [[package]]
 name = "cm-dashboard-shared"
-version = "0.1.239"
+version = "0.1.240"
 dependencies = [
  "chrono",
  "serde",