Implement full NFC-URL streaming architecture

- rc522: add NDEF URL reading via WUPA+cascade anticoll+SELECT+TLV parse
- AudioPlayer: route http:// URIs to esp_player_http_music_play()
- CacheManager: download URLs async to /sdcard/cache/{hash}.{ext}
- TagPlayerControl: NDEF URL → cache-or-stream; fallback to UID local mapping
- RFIDInterface: wire ndef_callback, expose combined uid+url callback
- WebInterface: add /api/info, /api/storage, /api/playback, /api/bluetooth
- BluetoothInterface: stub for A2DP speaker mode
- Networking: WiFi connect with 30s timeout instead of blocking forever
- main.cpp: re-enable WiFi + web server, fix init order, add CacheManager
- www/: full SPA — playback controls, device info, storage, BT pairing
- .gitmodules: switch rc522 submodule URL to HTTPS

https://claude.ai/code/session_01MhAnh68DPNnTjcKqjNYDmk

device/main/WebInterface.hpp

@@ -2,21 +2,32 @@
 #define _WEB_INTERFACE_HPP
 
 #include <esp_http_server.h>
+#include <memory>
+#include <functional>
+
+class AudioPlayer;
+class CacheManager;
 
 class WebInterface {
-	httpd_handle_t server = NULL;
+    httpd_handle_t server = NULL;
+    std::shared_ptr<AudioPlayer>  audioPlayer;
+    std::shared_ptr<CacheManager> cacheManager;
 
-	public:
-		WebInterface();
-		void start();
-		void finishResourceRegistrations();
-		void registerResource(httpd_uri_t* config);
-		void initSD();
+public:
+    WebInterface();
 
-	private:
-		httpd_handle_t start_webserver();
-		void registerFileServer();
-		//esp_err_t hello_get_handler(httpd_req_t *req); 
+    void setAudioPlayer(std::shared_ptr<AudioPlayer> p)   { audioPlayer  = p; }
+    void setCacheManager(std::shared_ptr<CacheManager> c) { cacheManager = c; }
+
+    void start();
+    void finishResourceRegistrations();
+    void registerResource(httpd_uri_t* config);
+    void initSD();
+
+private:
+    httpd_handle_t start_webserver();
+    void registerFileServer();
+    void registerApiHandlers();
 };
 
-#endif
+#endif