feat: migrate PDF417 barcode decoder from @zxing/browser to zxing-wasm

Replace @zxing/browser with zxing-wasm for better performance and smaller WebAssembly bundle size (919KB). Added middleware exclusion for .wasm files to prevent i18n routing interference.

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>

.claude/settings.local.json

@@ -16,7 +16,10 @@
       "Bash(npm run build:*)",
       "Bash(openssl rand:*)",
       "Bash(ls:*)",
-      "Bash(find:*)"
+      "Bash(find:*)",
+      "mcp__context7__resolve-library-id",
+      "mcp__context7__get-library-docs",
+      "mcp__serena__create_text_file"
     ]
   },
   "enableAllProjectMcpServers": true,