System plugin (#2091)

* System template (#2082)

* feat: system plugin (#2024)

* add plugin cost & change plugin avatar (#2030)

* add plugin cost & change plugin avatar

* add author

* feat: duckduckgo plugin

* duckduck search

* perf: templates select system plugin

* perf: system plugin avatar

* feat: duckduck plugins

* doc

* perf: plugin classify

* perf: icon avatar component

* perf: system template avatar

---------

Co-authored-by: heheer <71265218+newfish-cmyk@users.noreply.github.com>

* feat: system plugin search

* perf: plugin packages important

* perf: source avatar

* nextconfig

* perf: i18n

* perf: default model

* perf: system plugin author

---------

Co-authored-by: heheer <71265218+newfish-cmyk@users.noreply.github.com>

packages/service/core/dataset/schema.ts

@@ -67,7 +67,7 @@ const DatasetSchema = new Schema({
   agentModel: {
     type: String,
     required: true,
-    default: 'gpt-3.5-turbo'
+    default: 'gpt-4o-mini'
   },
   intro: {
     type: String,