fix(ui): восстанавливать контекст OSPF из URL

lib/ospf-url-state.test.ts

@@ -0,0 +1,12 @@
+import assert from "node:assert/strict"
+import { test } from "node:test"
+import { readOspfUrl, patchOspfUrl } from "./ospf-url-state"
+test("OSPF device/tab URL preserves unrelated context", () => {
+ const url=patchOspfUrl(new URLSearchParams("keep=x"),{server:"2",tab:"bfd"})
+ assert.deepEqual(readOspfUrl(new URL(url,"http://test").searchParams),{server:"2",tab:"bfd",error:null})
+ assert.equal(patchOspfUrl(new URL(url,"http://test").searchParams,{server:null,tab:null}),"/ospf?keep=x")
+})
+test("invalid or repeated context is explicit instead of widening to all",()=>{
+ for(const raw of ["server=a&server=b","tab=bfd&tab=neighbors","tab=broken","server=", "server="+"x".repeat(65),"server=%2F"]) assert.ok(readOspfUrl(new URLSearchParams(raw)).error)
+ assert.equal(readOspfUrl(new URLSearchParams("server=srv1&tab=neighbors")).error,null)
+})