feat(sub): add dummy info node and status configs for subscriptions (#6412)

* feat(settings): add subInfoNodeEnable and status template settings

* feat(sub): add dummy info node and status configs for raw links

* feat(sub): support dummy info node in clash and json subscriptions

* feat(ui): add subscription info node switch and status templates to settings

* style: apply gofumpt formatting

* fix(sub): address review feedback on subscription info node

- Restore GetSubs contract to avoid unintended remark expansions on non-subscription-body calls.
- Exclude dummy info node from Clash PROXY select group when active server nodes exist.
- Track hasEnabledClient and set traffic.Enable in JSON and Clash paths so status tokens evaluate correctly.
- Deterministically sort client emails across subscriptions before selecting primaryEmail.
- Consolidate duplicated info-node evaluation logic into resolveInfoNodeRemark helper.
- Remove redundant pure-getter test from setting_sub_info_node_test.go.

Co-Authored-By: Claude Code <noreply@anthropic.com>

---------

Co-authored-by: Claude Code <noreply@anthropic.com>

frontend/src/generated/zod.ts

@@ -82,9 +82,11 @@ export const AllSettingSchema = z.object({
   subEnable: z.boolean(),
   subEnableRouting: z.boolean(),
   subEncrypt: z.boolean(),
+  subExpiredTemplate: z.string(),
   subHideSettings: z.boolean(),
   subIncyEnableRouting: z.boolean(),
   subIncyRoutingRules: z.string(),
+  subInfoNodeEnable: z.boolean(),
   subJsonAlwaysArray: z.boolean(),
   subJsonAutoDetect: z.boolean(),
   subJsonEnable: z.boolean(),
@@ -105,6 +107,7 @@ export const AllSettingSchema = z.object({
   subSupportUrl: z.string(),
   subThemeDir: z.string(),
   subTitle: z.string(),
+  subTrafficDepletedTemplate: z.string(),
   subURI: z.string(),
   subUpdates: z.number().int().min(0).max(525600),
   tgBotAPIServer: z.string(),
@@ -198,9 +201,11 @@ export const AllSettingViewSchema = z.object({
   subEnable: z.boolean(),
   subEnableRouting: z.boolean(),
   subEncrypt: z.boolean(),
+  subExpiredTemplate: z.string(),
   subHideSettings: z.boolean(),
   subIncyEnableRouting: z.boolean(),
   subIncyRoutingRules: z.string(),
+  subInfoNodeEnable: z.boolean(),
   subJsonAlwaysArray: z.boolean(),
   subJsonAutoDetect: z.boolean(),
   subJsonEnable: z.boolean(),
@@ -221,6 +226,7 @@ export const AllSettingViewSchema = z.object({
   subSupportUrl: z.string(),
   subThemeDir: z.string(),
   subTitle: z.string(),
+  subTrafficDepletedTemplate: z.string(),
   subURI: z.string(),
   subUpdates: z.number().int().min(0).max(525600),
   tgBotAPIServer: z.string(),