feat(api-docs): generate response examples from Go structs; fix SS2022 PSK regen (#4996)

Stop hand-writing OpenAPI response examples, which kept drifting from the real payloads (clients/traffic missing fields, inbounds/list exposing userId which is json:"-", the fictional inbound-443 tag instead of the real in-<port>-<transport> form).

tools/openapigen now emits frontend/src/generated/examples.ts: a per-struct example instance built from type defaults, validate oneof/min bounds, and example: struct tags, with nested-ref expansion and a cycle guard. build-openapi.mjs composes the {success,obj} envelope from it for any endpoint annotated with responseSchema (+ responseSchemaArray for lists); the hand-written response is dropped for those. Service DTOs InboundOption/ApiTokenView/ProbeResultUI are added to the walker.

#4996: client password regeneration now produces a valid Shadowsocks 2022 PSK (correct base64 length per cipher) when an SS2022 inbound is attached, in both the single and bulk client forms; backend surfaces ssMethod on /inbounds/options so the UI can pick the right length.

Also: Swagger UI persists the Authorization token across reloads (persistAuthorization).

frontend/src/pages/clients/ClientBulkAddModal.tsx

@@ -89,6 +89,15 @@ export default function ClientBulkAddModal({
     [form.inboundIds, flowCapableIds],
   );
 
+  const ss2022Method = useMemo(() => {
+    for (const id of form.inboundIds || []) {
+      const ib = (inbounds || []).find((row) => row.id === id);
+      const method = ib?.ssMethod;
+      if (method && method.substring(0, 4) === '2022') return method;
+    }
+    return '';
+  }, [form.inboundIds, inbounds]);
+
   useEffect(() => {
     if (!showFlow && form.flow) {
 
@@ -153,7 +162,9 @@ export default function ClientBulkAddModal({
           email,
           subId: form.subId || RandomUtil.randomLowerAndNum(16),
           id: RandomUtil.randomUUID(),
-          password: RandomUtil.randomLowerAndNum(16),
+          password: ss2022Method
+            ? RandomUtil.randomShadowsocksPassword(ss2022Method)
+            : RandomUtil.randomLowerAndNum(16),
           auth: RandomUtil.randomLowerAndNum(16),
           flow: showFlow ? (form.flow || '') : '',
           totalGB: Math.round((form.totalGB || 0) * SizeFormatter.ONE_GB),