feat: монорепо миграция, Discover/SearxNG улучшения

- Миграция на монорепозиторий (apps/frontend, apps/chat-service, etc.)
- Discover: проверка SearxNG, понятное empty state при ненастроенном поиске
- searxng.ts: валидация URL, проверка JSON-ответа, авто-добавление http://
- docker/searxng-config: настройки для JSON API SearxNG

Co-authored-by: Cursor <cursoragent@cursor.com>

apps/llm-proxy/src/lib/models/registry.ts

@@ -0,0 +1,221 @@
+import { ConfigModelProvider } from '../config/types';
+import BaseModelProvider, { createProviderInstance } from './base/provider';
+import { getConfiguredModelProviders } from '../config/serverRegistry';
+import { providers } from './providers';
+import { MinimalProvider, ModelList } from './types';
+import configManager from '../config';
+
+class ModelRegistry {
+  activeProviders: (ConfigModelProvider & {
+    provider: BaseModelProvider<any>;
+  })[] = [];
+
+  constructor() {
+    this.initializeActiveProviders();
+  }
+
+  private initializeActiveProviders() {
+    const configuredProviders = getConfiguredModelProviders();
+
+    configuredProviders.forEach((p) => {
+      try {
+        const provider = providers[p.type];
+        if (!provider) throw new Error('Invalid provider type');
+
+        this.activeProviders.push({
+          ...p,
+          provider: createProviderInstance(provider, p.id, p.name, p.config),
+        });
+      } catch (err) {
+        console.error(
+          `Failed to initialize provider. Type: ${p.type}, ID: ${p.id}, Config: ${JSON.stringify(p.config)}, Error: ${err}`,
+        );
+      }
+    });
+  }
+
+  async getActiveProviders() {
+    const providers: MinimalProvider[] = [];
+
+    await Promise.all(
+      this.activeProviders.map(async (p) => {
+        let m: ModelList = { chat: [], embedding: [] };
+
+        try {
+          m = await p.provider.getModelList();
+        } catch (err: any) {
+          console.error(
+            `Failed to get model list. Type: ${p.type}, ID: ${p.id}, Error: ${err.message}`,
+          );
+
+          m = {
+            chat: [
+              {
+                key: 'error',
+                name: err.message,
+              },
+            ],
+            embedding: [],
+          };
+        }
+
+        providers.push({
+          id: p.id,
+          name: p.name,
+          chatModels: m.chat,
+          embeddingModels: m.embedding,
+        });
+      }),
+    );
+
+    return providers;
+  }
+
+  async loadChatModel(providerId: string, modelName: string) {
+    const provider = this.activeProviders.find((p) => p.id === providerId);
+
+    if (!provider) throw new Error('Invalid provider id');
+
+    const model = await provider.provider.loadChatModel(modelName);
+
+    return model;
+  }
+
+  async loadEmbeddingModel(providerId: string, modelName: string) {
+    const provider = this.activeProviders.find((p) => p.id === providerId);
+
+    if (!provider) throw new Error('Invalid provider id');
+
+    const model = await provider.provider.loadEmbeddingModel(modelName);
+
+    return model;
+  }
+
+  async addProvider(
+    type: string,
+    name: string,
+    config: Record<string, any>,
+  ): Promise<ConfigModelProvider> {
+    const provider = providers[type];
+    if (!provider) throw new Error('Invalid provider type');
+
+    const newProvider = configManager.addModelProvider(type, name, config);
+
+    const instance = createProviderInstance(
+      provider,
+      newProvider.id,
+      newProvider.name,
+      newProvider.config,
+    );
+
+    let m: ModelList = { chat: [], embedding: [] };
+
+    try {
+      m = await instance.getModelList();
+    } catch (err: any) {
+      console.error(
+        `Failed to get model list for newly added provider. Type: ${type}, ID: ${newProvider.id}, Error: ${err.message}`,
+      );
+
+      m = {
+        chat: [
+          {
+            key: 'error',
+            name: err.message,
+          },
+        ],
+        embedding: [],
+      };
+    }
+
+    this.activeProviders.push({
+      ...newProvider,
+      provider: instance,
+    });
+
+    return {
+      ...newProvider,
+      chatModels: m.chat || [],
+      embeddingModels: m.embedding || [],
+    };
+  }
+
+  async removeProvider(providerId: string): Promise<void> {
+    configManager.removeModelProvider(providerId);
+    this.activeProviders = this.activeProviders.filter(
+      (p) => p.id !== providerId,
+    );
+
+    return;
+  }
+
+  async updateProvider(
+    providerId: string,
+    name: string,
+    config: any,
+  ): Promise<ConfigModelProvider> {
+    const updated = await configManager.updateModelProvider(
+      providerId,
+      name,
+      config,
+    );
+    const instance = createProviderInstance(
+      providers[updated.type],
+      providerId,
+      name,
+      config,
+    );
+
+    let m: ModelList = { chat: [], embedding: [] };
+
+    try {
+      m = await instance.getModelList();
+    } catch (err: any) {
+      console.error(
+        `Failed to get model list for updated provider. Type: ${updated.type}, ID: ${updated.id}, Error: ${err.message}`,
+      );
+
+      m = {
+        chat: [
+          {
+            key: 'error',
+            name: err.message,
+          },
+        ],
+        embedding: [],
+      };
+    }
+
+    this.activeProviders.push({
+      ...updated,
+      provider: instance,
+    });
+
+    return {
+      ...updated,
+      chatModels: m.chat || [],
+      embeddingModels: m.embedding || [],
+    };
+  }
+
+  /* Using async here because maybe in the future we might want to add some validation?? */
+  async addProviderModel(
+    providerId: string,
+    type: 'embedding' | 'chat',
+    model: any,
+  ): Promise<any> {
+    const addedModel = configManager.addProviderModel(providerId, type, model);
+    return addedModel;
+  }
+
+  async removeProviderModel(
+    providerId: string,
+    type: 'embedding' | 'chat',
+    modelKey: string,
+  ): Promise<void> {
+    configManager.removeProviderModel(providerId, type, modelKey);
+    return;
+  }
+}
+
+export default ModelRegistry;