feat: add Fedora package sync API endpoint

- Implemented API route with progress tracking for fetching and storing Fedora packages
- Created FedoraPackageFetcher service to scrape packages.fedoraproject.org with rate limiting
- Added batch processing and duplicate detection for efficient database storage

src/services/fedoraPackageFetcher.ts

@@ -0,0 +1,177 @@
+interface FedoraPackage {
+  name: string
+  version: string
+  description: string
+  repository: string
+}
+
+export class FedoraPackageFetcher {
+  private baseUrl = 'https://packages.fedoraproject.org'
+  
+  /**
+   * Fetch all Fedora packages with progress callback
+   */
+  async fetchAllPackages(
+    onProgress?: (current: number, total: number, packageName: string) => void
+  ): Promise<FedoraPackage[]> {
+    console.log('🎩 Starting Fedora package fetch...')
+    
+    const allPackages: FedoraPackage[] = []
+    
+    try {
+      // Step 1: Get all index prefixes
+      console.log('📄 Fetching index page...')
+      const indexResponse = await fetch(`${this.baseUrl}/index-static.html`)
+      if (!indexResponse.ok) {
+        throw new Error(`HTTP error! status: ${indexResponse.status}`)
+      }
+      
+      const indexHtml = await indexResponse.text()
+      const prefixes = this.extractPrefixes(indexHtml)
+      
+      console.log(`📦 Found ${prefixes.length} index prefixes`)
+      
+      // Step 2: Fetch packages from each prefix
+      let processedPrefixes = 0
+      for (const prefix of prefixes) {
+        try {
+          const prefixUrl = `${this.baseUrl}/index/${prefix}.html`
+          console.log(`📄 Fetching prefix ${prefix}... (${processedPrefixes + 1}/${prefixes.length})`)
+          
+          const response = await fetch(prefixUrl)
+          if (!response.ok) {
+            console.error(`❌ Failed to fetch prefix ${prefix}: ${response.status}`)
+            continue
+          }
+          
+          const html = await response.text()
+          const packages = this.extractPackagesFromPrefix(html, prefix)
+          
+          allPackages.push(...packages)
+          processedPrefixes++
+          
+          if (onProgress && packages.length > 0) {
+            onProgress(allPackages.length, allPackages.length, packages[0].name)
+          }
+          
+          // Rate limiting: wait 100ms between requests
+          await new Promise(resolve => setTimeout(resolve, 100))
+          
+        } catch (error) {
+          console.error(`❌ Error fetching prefix ${prefix}:`, error)
+        }
+      }
+      
+      console.log(`✅ Fetch completed! Total packages: ${allPackages.length}`)
+      return allPackages
+      
+    } catch (error) {
+      console.error('❌ Error fetching Fedora packages:', error)
+      throw error
+    }
+  }
+  
+  /**
+   * Extract prefix links from index page
+   */
+  private extractPrefixes(html: string): string[] {
+    const prefixes: string[] = []
+    
+    // Match: <a href="./index/0a.html">0a</a>
+    const prefixRegex = /<a href="\.\/index\/([^"]+)\.html">/gi
+    
+    let match
+    while ((match = prefixRegex.exec(html)) !== null) {
+      prefixes.push(match[1])
+    }
+    
+    return prefixes
+  }
+  
+  /**
+   * Extract package names from a prefix page
+   */
+  private extractPackagesFromPrefix(html: string, prefix: string): FedoraPackage[] {
+    const packages: FedoraPackage[] = []
+    
+    // Match: <li><a href="../pkgs/ffmpeg/ffmpeg-free/index.html">ffmpeg-free</a></li>
+    const packageRegex = /<li><a href="\.\.\/pkgs\/[^"]+">([^<]+)<\/a><\/li>/gi
+    
+    let match
+    while ((match = packageRegex.exec(html)) !== null) {
+      const name = match[1].trim()
+      
+      if (name) {
+        packages.push({
+          name,
+          version: 'latest', // We'll get version from API later if needed
+          description: `Fedora package: ${name}`,
+          repository: 'official'
+        })
+      }
+    }
+    
+    return packages
+  }
+  
+  /**
+   * Store packages in database
+   */
+  async storePackages(
+    packages: FedoraPackage[],
+    onProgress?: (current: number, total: number) => void
+  ): Promise<void> {
+    const { query } = await import('@/lib/database/config')
+    
+    console.log(`💾 Storing ${packages.length} Fedora packages in database...`)
+    
+    const batchSize = 100
+    let stored = 0
+    let updated = 0
+    let skipped = 0
+    
+    for (let i = 0; i < packages.length; i += batchSize) {
+      const batch = packages.slice(i, i + batchSize)
+      
+      for (const pkg of batch) {
+        try {
+          // Check if package already exists
+          const existingResult = await query(
+            'SELECT id, version FROM packages WHERE name = $1 AND platform_id = $2',
+            [pkg.name, 'fedora']
+          )
+          
+          if (existingResult.rows.length === 0) {
+            // Insert new package
+            await query(
+              `INSERT INTO packages (id, name, description, version, platform_id, type, repository, popularity_score, is_active)
+               VALUES (gen_random_uuid(), $1, $2, $3, $4, $5, $6, $7, $8)`,
+              [pkg.name, pkg.description, pkg.version, 'fedora', 'cli', pkg.repository, 0, true]
+            )
+            stored++
+          } else if (existingResult.rows[0].version !== pkg.version) {
+            // Update if version changed
+            await query(
+              `UPDATE packages 
+               SET version = $1, description = $2, repository = $3, updated_at = NOW()
+               WHERE id = $4`,
+              [pkg.version, pkg.description, pkg.repository, existingResult.rows[0].id]
+            )
+            updated++
+          } else {
+            skipped++
+          }
+          
+          if (onProgress && (stored + updated + skipped) % 100 === 0) {
+            onProgress(stored + updated + skipped, packages.length)
+          }
+          
+        } catch (error) {
+          console.error(`Error storing package ${pkg.name}:`, error)
+        }
+      }
+    }
+    
+    console.log(`✅ Stored ${stored} new packages, updated ${updated}, skipped ${skipped}`)
+  }
+}