Add save timestamp support and log interceptor for enhanced debugging

- Introduced `created_at` metadata for saves, enabling timestamp tracking.
- Added `InterceptorLogger` to capture logs, aiding in error diagnostics.
- Updated web UI to display save creation timestamps.
- Improved save/load functionality to maintain compatibility with older formats.

Software/MainBoard/rust/src/webserver/mod.rs

@@ -10,8 +10,8 @@ mod post_json;
 use crate::fat_error::{FatError, FatResult};
 use crate::webserver::backup_manager::{backup_config, backup_info, get_backup_config};
 use crate::webserver::get_json::{
-    get_battery_state, get_config, get_live_moisture, get_log_localization_config, get_solar_state,
-    delete_save, get_time, get_timezones, get_version_web, list_saves, tank_info,
+    delete_save, get_battery_state, get_config, get_live_moisture, get_log_localization_config,
+    get_solar_state, get_time, get_timezones, get_version_web, list_saves, tank_info,
 };
 use crate::webserver::get_log::get_log;
 use crate::webserver::get_static::{serve_bundle, serve_favicon, serve_index};
@@ -64,6 +64,7 @@ impl Handler for HTTPRequestRouter {
                 e
             })?
         } else {
+            crate::log::INTERCEPTOR.start_capture().await;
             match method {
                 Method::Get => match path {
                     "/favicon.ico" => serve_favicon(conn).await?,
@@ -138,7 +139,9 @@ impl Handler for HTTPRequestRouter {
                             .and_then(|s| s.parse().ok());
                         match idx {
                             Some(idx) => Some(delete_save(conn, idx).await),
-                            None => Some(Err(FatError::String { error: "missing idx parameter".into() })),
+                            None => Some(Err(FatError::String {
+                                error: "missing idx parameter".into(),
+                            })),
                         }
                     } else {
                         None
@@ -164,6 +167,7 @@ impl Handler for HTTPRequestRouter {
         let response_time = Instant::now().duration_since(start).as_millis();
 
         info!("\"{method} {path}\" {code} {response_time}ms");
+        crate::log::INTERCEPTOR.stop_capture().await;
         Ok(())
     }
 }
@@ -261,8 +265,17 @@ where
             }
         },
         Err(err) => {
-            let error_text = err.to_string();
+            let mut error_text = err.to_string();
             info!("error handling process {error_text}");
+
+            if let Some(logs) = crate::log::INTERCEPTOR.stop_capture().await {
+                error_text.push_str("\n\nCaptured Logs:\n");
+                for log in logs {
+                    error_text.push_str(&log);
+                    error_text.push('\n');
+                }
+            }
+
             conn.initiate_response(
                 500,
                 Some("OK"),