feat: one-line install for agents and probes from one shared script (curl | bash, zsh, PowerShell) [CI]

backend/openapi/v1.json

@@ -4139,16 +4139,28 @@
         }
       }
     },
-    "/install.sh": {
+    "/install": {
       "get": {
         "tags": [
           "ops"
         ],
-        "summary": "Installer for Linux nodes",
+        "summary": "One-line installer for Linux and macOS nodes (agent or probe, decided by the code)",
         "operationId": "install_sh",
+        "parameters": [
+          {
+            "name": "code",
+            "in": "query",
+            "schema": {
+              "type": "string"
+            }
+          }
+        ],
         "responses": {
-          "501": {
-            "description": "Not Implemented",
+          "200": {
+            "description": "OK"
+          },
+          "404": {
+            "description": "Not Found",
             "content": {
               "application/problem+json": {
                 "schema": {
@@ -4165,11 +4177,23 @@
         "tags": [
           "ops"
         ],
-        "summary": "Installer for Windows nodes",
+        "summary": "One-line installer for Windows nodes (agent or probe, decided by the code)",
         "operationId": "install_ps1",
+        "parameters": [
+          {
+            "name": "code",
+            "in": "query",
+            "schema": {
+              "type": "string"
+            }
+          }
+        ],
         "responses": {
-          "501": {
-            "description": "Not Implemented",
+          "200": {
+            "description": "OK"
+          },
+          "404": {
+            "description": "Not Found",
             "content": {
               "application/problem+json": {
                 "schema": {