feat(search): recherche intelligente — parsing backend + pg_trgm fuzzy

- parseSearchTokens() côté backend : extrait type (async/openapi),
  version (v1, 1.2.3) et latestOnly depuis la chaîne brute
- Recherche fuzzy via word_similarity (pg_trgm, seuil 0.5) + ILIKE
- latestOnly automatique quand champ non vide sans version explicite
- Suppression de parseSearch() dans BrowseComponent et CatalogComponent
- Suppression de version/latestOnly de ApiListQuery (géré par le backend)
- Activation de pg_trgm via CREATE EXTENSION dans SeederService
- Tests unitaires Vitest pour parseSearchTokens (24 cas)

Generated with [Claude Code](https://claude.ai/code)
via [Happy](https://happy.engineering)

Co-Authored-By: Claude <noreply@anthropic.com>
Co-Authored-By: Happy <yesreply@happy.engineering>

back/src/modules/seeder/seeder.service.ts

@@ -1,6 +1,6 @@
 import { Injectable, OnApplicationBootstrap } from '@nestjs/common';
 import { InjectRepository } from '@nestjs/typeorm';
-import { Repository } from 'typeorm';
+import { Repository, DataSource } from 'typeorm';
 import * as fs from 'fs/promises';
 import { ApiEntryEntity } from '../apis/api-entry.entity';
 import { CategoryEntity } from '../categories/category.entity';
@@ -593,9 +593,13 @@ export class SeederService implements OnApplicationBootstrap {
     @InjectRepository(CategoryEntity)
     private readonly categoryRepo: Repository<CategoryEntity>,
     private readonly docsService: DocsGenerationService,
+    private readonly dataSource: DataSource,
   ) {}
 
   async onApplicationBootstrap(): Promise<void> {
+    // Activer l'extension pg_trgm pour la recherche fuzzy
+    await this.dataSource.query('CREATE EXTENSION IF NOT EXISTS pg_trgm');
+
     const forceReseed = process.env.FORCE_RESEED === 'true';
     if (forceReseed) {
       await this.reset();