feat add clash yaml convert (#3916)

* docs(agents): add AI agent guidance documentation

* feat(sub): add Clash/Mihomo YAML subscription service

Add SubClashService to convert subscription links to Clash/Mihomo
YAML format for direct client compatibility.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

* feat(sub): integrate Clash YAML endpoint into subscription system

- Add Clash route handler in SUBController
- Update BuildURLs to include Clash URL
- Pass Clash settings through subscription pipeline

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

* feat(web): add Clash settings to entity and service

- Add SubClashEnable, SubClashPath, SubClashURI fields
- Add getter methods for Clash configuration
- Set default Clash path to /clash/ and enable by default

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

* feat(ui): add Clash settings to subscription panels

- Add Clash enable switch in general subscription settings
- Add Clash path/URI configuration in formats panel
- Display Clash QR code on subscription page
- Rename JSON tab to "Formats" for clarity

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

* feat(js): add Clash support to frontend models

- Add subClashEnable, subClashPath, subClashURI to AllSetting
- Generate and display Clash QR code on subscription page
- Handle Clash URL in subscription data binding

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

* fix

---------

Co-authored-by: Claude Sonnet 4.6 <noreply@anthropic.com>
Co-authored-by: Sanaei <ho3ein.sanaei@gmail.com>

web/html/settings.html

@@ -79,10 +79,10 @@
                     </template>
                     {{ template "settings/panel/subscription/general" . }}
                   </a-tab-pane>
-                  <a-tab-pane key="5" v-if="allSetting.subJsonEnable" :style="{ paddingTop: '20px' }">
+                  <a-tab-pane key="5" v-if="allSetting.subJsonEnable || allSetting.subClashEnable" :style="{ paddingTop: '20px' }">
                     <template #tab>
                       <a-icon type="code"></a-icon>
-                      <span>{{ i18n "pages.settings.subSettings" }} (JSON)</span>
+                      <span>{{ i18n "pages.settings.subSettings" }} (Formats)</span>
                     </template>
                     {{ template "settings/panel/subscription/json" . }}
                   </a-tab-pane>