Add /api/action/flush/arp flushing both the network and network_addresses tables in pihole-FTL.db

Signed-off-by: DL6ER <dl6er@dl6er.de>

src/api/docs/content/specs/action.yaml

@@ -163,3 +163,28 @@ components:
                   allOf:
                     - $ref: 'common.yaml#/components/errors/unauthorized'
                     - $ref: 'common.yaml#/components/schemas/took'
+    flush_arp:
+      post:
+        summary: Flush the network table
+        tags:
+          - Actions
+        operationId: "action_flusharp"
+        description: |
+          Flushes the network table. This includes emptying the ARP table and removing both all known devices and their associated addresses.
+        responses:
+          '200':
+            description: OK
+            content:
+              application/json:
+                schema:
+                  allOf:
+                    - $ref: 'common.yaml#/components/schemas/success'
+                    - $ref: 'common.yaml#/components/schemas/took'
+          '401':
+            description: Unauthorized
+            content:
+              application/json:
+                schema:
+                  allOf:
+                    - $ref: 'common.yaml#/components/errors/unauthorized'
+                    - $ref: 'common.yaml#/components/schemas/took'

src/api/docs/content/specs/main.yaml

@@ -233,6 +233,9 @@ paths:
   /action/flush/logs:
     $ref: 'action.yaml#/components/paths/flush_logs'
 
+  /action/flush/arp:
+    $ref: 'action.yaml#/components/paths/flush_arp'
+
   /action/reboot:
     $ref: 'action.yaml#/components/paths/reboot'