docs: Add missing rustdoc for StatusService struct and methods

Co-authored-by: aider (openai/andrew/openrouter/sonoma-sky-alpha) <aider@aider.chat>

src/services/status_service.rs

@@ -7,13 +7,52 @@ use clap::Command;
 use std::path::PathBuf;
 use std::str::FromStr;
 
+/// Service for generating system status information.
+///
+/// This service collects and formats status data about the application's
+/// configuration, storage paths, compression engines, metadata plugins,
+/// and filter plugins. It provides a unified interface for status reporting
+/// used by both CLI and server modes.
 pub struct StatusService;
 
 impl StatusService {
+    /// Creates a new `StatusService` instance.
+    ///
+    /// # Returns
+    ///
+    /// A new `StatusService` instance.
+    ///
+    /// # Examples
+    ///
+    /// ```
+    /// let service = StatusService::new();
+    /// ```
     pub fn new() -> Self {
         Self
     }
 
+    /// Generates comprehensive status information for the application.
+    ///
+    /// Collects data about paths, compression engines, available and configured
+    /// meta plugins, and filter plugins. Uses the provided settings to determine
+    /// enabled components.
+    ///
+    /// # Arguments
+    ///
+    /// * `cmd` - Mutable reference to the Clap command for error reporting.
+    /// * `settings` - Application settings containing configuration.
+    /// * `data_path` - Path to the data storage directory.
+    /// * `db_path` - Path to the SQLite database file.
+    ///
+    /// # Returns
+    ///
+    /// `StatusInfo` - Structured status information.
+    ///
+    /// # Examples
+    ///
+    /// ```
+    /// let status = service.generate_status(&mut cmd, &settings, data_path, db_path);
+    /// ```
     pub fn generate_status(
         &self,
         cmd: &mut Command,
@@ -56,10 +95,14 @@ impl StatusService {
         
         status_info
     }
-
 }
 
 impl Default for StatusService {
+    /// Returns the default `StatusService` instance.
+    ///
+    /// # Returns
+    ///
+    /// A new `StatusService`.
     fn default() -> Self {
         Self::new()
     }