doc: update documentation with latest changes

doc/others/fr/resources/overview.plantuml

@@ -0,0 +1,59 @@
+@startuml
+top to bottom direction
+skinparam linetype ortho
+
+node PilotNode as "Pilot Node" {
+    database DataStore as "Data Store"
+
+    component EmissaryServer as "Emissary Server" {
+
+        component SpecificationRegistry as "Specification Registry" {
+            component UCISpecification as "UCI Spec"
+            component MDNSSpecification as "mDNS Spec"
+            component AppSpecification as "App Spec"
+            component ProxySpecification as "Proxy Spec"
+            component SysUpgradeSpecification as "SysUpgrade Spec"
+        }
+
+        component HTTPHandler as "HTTP Handler"
+
+        HTTPHandler .down.> SpecificationRegistry: validates agents data with
+
+        HTTPHandler .right.> DataStore: saves agent data in
+    }
+}
+
+node OperatorNode as "Operator Node" {
+    component EmissaryClient as "Emissary Client"
+
+    EmissaryClient -left-> HTTPHandler: administrates
+}
+
+node OpenWRTNode as "OpenWRT Node" {
+    component EmissaryAgent as "Emissary Agent" {
+
+        component StateManager as "State Manager"
+
+        StateManager --up-> HTTPHandler: fetches agent ^*specs from
+
+        component UCIController as "UCI Controller"
+
+        UCIController .up.> StateManager: reconciles with
+
+        component SysUpgradeController as "SysUpgrade Controller"
+
+        SysUpgradeController .up.> StateManager: reconciles with
+    
+        component ProxyController as "Proxy Controller"
+
+        ProxyController .up.> StateManager: reconciles with
+
+        component MDNSController as "mDNS Controller"
+
+        MDNSController .up.> StateManager: reconciles with
+
+        component AppController as "App Controller"
+
+        AppController .up.> StateManager: reconciles with
+    }
+}