Fix service discovery to show all configured services regardless of state

Changed service discovery from 'systemctl list-units --all' to 'systemctl list-unit-files'
to ensure ALL service unit files are discovered, including services that have never been started.

Changes:
- Updated systemctl command to use list-unit-files instead of list-units --all
- Modified parsing logic to handle unit file format (2 fields vs 4 fields)
- Set placeholder values in discovery cache, actual runtime status fetched during collection
- This ensures all configured services (like inactive ARK servers) appear in dashboard

The issue was that list-units --all only shows services systemd has loaded/attempted to load,
but list-unit-files shows ALL service unit files regardless of their runtime state.

Cargo.lock

@@ -270,7 +270,7 @@ checksum = "a1d728cc89cf3aee9ff92b05e62b19ee65a02b5702cff7d5a377e32c6ae29d8d"
 
 [[package]]
 name = "cm-dashboard"
-version = "0.1.29"
+version = "0.1.30"
 dependencies = [
  "anyhow",
  "chrono",
@@ -291,7 +291,7 @@ dependencies = [
 
 [[package]]
 name = "cm-dashboard-agent"
-version = "0.1.29"
+version = "0.1.30"
 dependencies = [
  "anyhow",
  "async-trait",
@@ -314,7 +314,7 @@ dependencies = [
 
 [[package]]
 name = "cm-dashboard-shared"
-version = "0.1.29"
+version = "0.1.30"
 dependencies = [
  "chrono",
  "serde",

agent/Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "cm-dashboard-agent"
-version = "0.1.30"
+version = "0.1.31"
 edition = "2021"
 
 [dependencies]

agent/src/collectors/systemd.rs

@@ -136,11 +136,10 @@ impl SystemdCollector {
     /// Auto-discover interesting services to monitor (internal version that doesn't update state)
     fn discover_services_internal(&self) -> Result<(Vec<String>, std::collections::HashMap<String, ServiceStatusInfo>)> {
         debug!("Starting systemd service discovery with status caching");
-        // Get all services (includes inactive, running, failed - everything)
+        // Get all service unit files (includes services that have never been started)
         let units_output = Command::new("systemctl")
-            .arg("list-units")
+            .arg("list-unit-files")
             .arg("--type=service")
-            .arg("--all")
             .arg("--no-pager")
             .arg("--plain")
             .output()?;
@@ -162,23 +161,20 @@ impl SystemdCollector {
         
         for line in units_str.lines() {
             let fields: Vec<&str> = line.split_whitespace().collect();
-            if fields.len() >= 4 && fields[0].ends_with(".service") {
+            if fields.len() >= 2 && fields[0].ends_with(".service") {
                 let service_name = fields[0].trim_end_matches(".service");
+                let unit_file_state = fields.get(1).unwrap_or(&"unknown").to_string();
                 
-                // Extract status information from systemctl list-units output
-                let load_state = fields.get(1).unwrap_or(&"unknown").to_string();
-                let active_state = fields.get(2).unwrap_or(&"unknown").to_string();
-                let sub_state = fields.get(3).unwrap_or(&"unknown").to_string();
-
-                // Cache the status information
+                // For unit files, we don't have runtime status info yet - will be fetched individually
+                // Set placeholder values for status cache (actual status will be fetched when collecting metrics)
                 status_cache.insert(service_name.to_string(), ServiceStatusInfo {
-                    load_state: load_state.clone(),
-                    active_state: active_state.clone(),
-                    sub_state: sub_state.clone(),
+                    load_state: "unknown".to_string(),  // Will be determined when we check individual status
+                    active_state: "unknown".to_string(), // Will be determined when we check individual status
+                    sub_state: unit_file_state.clone(), // Use unit file state as placeholder
                 });
 
                 all_service_names.insert(service_name.to_string());
-                debug!("Parsed service: {} (load:{}, active:{}, sub:{})", service_name, load_state, active_state, sub_state);
+                debug!("Found service unit file: {} (file_state: {})", service_name, unit_file_state);
             }
         }
 

dashboard/Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "cm-dashboard"
-version = "0.1.30"
+version = "0.1.31"
 edition = "2021"
 
 [dependencies]

dashboard/src/main.rs

@@ -14,7 +14,7 @@ use app::Dashboard;
 
 /// Get hardcoded version
 fn get_version() -> &'static str {
-    "v0.1.30"
+    "v0.1.31"
 }
 
 /// Check if running inside tmux session

shared/Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "cm-dashboard-shared"
-version = "0.1.30"
+version = "0.1.31"
 edition = "2021"
 
 [dependencies]