Fix real-time service logs with background start approach

- Update service start to use background systemctl start with immediate log following
- Implement `sudo systemctl start service & sudo journalctl -fu service --since="1 second ago"`
- Remove buffering issues that prevented real-time log streaming
- Version bump to 0.1.82

Cargo.lock

@@ -270,7 +270,7 @@ checksum = "a1d728cc89cf3aee9ff92b05e62b19ee65a02b5702cff7d5a377e32c6ae29d8d"
 
 [[package]]
 name = "cm-dashboard"
-version = "0.1.80"
+version = "0.1.81"
 dependencies = [
  "anyhow",
  "chrono",
@@ -292,7 +292,7 @@ dependencies = [
 
 [[package]]
 name = "cm-dashboard-agent"
-version = "0.1.80"
+version = "0.1.81"
 dependencies = [
  "anyhow",
  "async-trait",
@@ -315,7 +315,7 @@ dependencies = [
 
 [[package]]
 name = "cm-dashboard-shared"
-version = "0.1.80"
+version = "0.1.81"
 dependencies = [
  "chrono",
  "serde",