feat: agent templates and seeding premade agents (#1910)

* feat: agent templates and seeding premade agents

* fix: ensure ObjectId is used for source reference in agent configuration

* fix: improve source handling in DatabaseSeeder and update tool config processing

* feat: add prompt handling in DatabaseSeeder for agent configuration

* Docs premade agents

* link to prescraped docs

* feat: add template agent retrieval and adopt agent functionality

* feat: simplify agent descriptions in premade_agents.yaml  added docs

---------

Co-authored-by: Pavel <pabin@yandex.ru>
Co-authored-by: Alex <a@tushynski.me>

frontend/src/agents/agents.config.ts

@@ -0,0 +1,42 @@
+import userService from '../api/services/userService';
+import {
+  selectAgents,
+  selectTemplateAgents,
+  selectSharedAgents,
+  setAgents,
+  setTemplateAgents,
+  setSharedAgents,
+} from '../preferences/preferenceSlice';
+
+export const agentSectionsConfig = [
+  {
+    id: 'template',
+    title: 'By DocsGPT',
+    description: 'Agents provided by DocsGPT',
+    showNewAgentButton: false,
+    emptyStateDescription: 'No template agents found.',
+    fetchAgents: (token: string | null) => userService.getTemplateAgents(token),
+    selectData: selectTemplateAgents,
+    updateAction: setTemplateAgents,
+  },
+  {
+    id: 'user',
+    title: 'By me',
+    description: 'Agents created or published by you',
+    showNewAgentButton: true,
+    emptyStateDescription: 'You don’t have any created agents yet.',
+    fetchAgents: (token: string | null) => userService.getAgents(token),
+    selectData: selectAgents,
+    updateAction: setAgents,
+  },
+  {
+    id: 'shared',
+    title: 'Shared with me',
+    description: 'Agents imported by using a public link',
+    showNewAgentButton: false,
+    emptyStateDescription: 'No shared agents found.',
+    fetchAgents: (token: string | null) => userService.getSharedAgents(token),
+    selectData: selectSharedAgents,
+    updateAction: setSharedAgents,
+  },
+];