feat: 第三轮深度完善 — SQLite/JSON/网络/媒体/文本 真实实现

SQLite真实数据库:
- SQLiteDatabase: execSQL/insert/insertOrThrow/replace/update/delete/query 用sqlite3
- 修复getVersion/setVersion用PRAGMA user_version
- 修复getMaximumSize/getPageSize/setMaximumSize/setPageSize用PRAGMA
- SQLiteStatement: execute/simpleQueryForLong/simpleQueryForString/execQuery
- SQLiteOpenHelper: onCreate/onUpgrade/onDowngrade回调正确触发
- 修复SQLiteCursor.moveToPosition越界处理
- 修复ContentValues值对提取bug

JSON真实实现:
- JSONObject: isNull/append/putOnce/putOpt/getNames
- JSONArray: 完整put/get/opt/length/toString

网络真实实现:
- NetworkInterface: getByName/getNetworkInterfaces/getHardwareAddress 用/sys/class/net+fcntl.ioctl
- InterfaceAddress: 新增类
- ConnectivityManager: getActiveNetwork/getAllNetworks 用LinuxNetwork
- WifiManager: getScanResults用nmcli, setWifiEnabled用nmcli/rfkill
- BluetoothAdapter: getAddress/getName 用bluetoothctl

媒体真实实现:
- MediaPlayer: prepare检查文件, getCurrentPosition实时计算, getDuration/getVideoWidth用ffprobe
- MediaRecorder: setVideoSize/setVideoFrameRate/setVideoEncodingBitRate配置存储
- MediaMetadataRetriever: extractMetadata用ffprobe, getFrameAtTime用ffmpeg, getEmbeddedPicture用ffmpeg

文本真实实现:
- TextUtils: split用re.split, concat/indexOf/lastIndexOf/urlEncode/urlDecode
- SpannableString: setSpan/getSpans/getSpanFlags/nextSpanTransition 真实实现
- SpannableStringBuilder: 修复append重载bug

Provider增强:
- Settings: putBoolean/getBoolean
- MediaStore: getContentUri/VOLUME常量
- ContactsContract: 补全常量和CommonDataKinds

Util增强:
- Log: w/e/wtf支持Throwable参数, 修复wtf重复定义bug
- TypedValue: 修复complexToDimension/complexToFloat/getFloat实现

修复:
- __init__.py: 补全NetworkInterface/InetAddress/MediaMetadataRetriever/SpannableStringBuilder导出

统计: 221模块, 3666类, 31005方法, 183529行

android_pyapi/android/net_wifi.py

@@ -670,12 +670,73 @@ class WifiManager(Stub):
         return info
 
     def getScanResults(self) -> List[ScanResult]:
+        if _USE_LINUX:
+            results = self._linux_scan_results()
+            if results is not None:
+                return results
         return list(self._scan_results)
 
+    def _linux_scan_results(self) -> Optional[List[ScanResult]]:
+        """通过 nmcli 获取 WiFi 扫描结果 (真实实现)"""
+        import subprocess
+        import re
+        try:
+            proc = subprocess.run(
+                ["nmcli", "-t", "-f", "ssid,bssid,signal,freq,security",
+                 "dev", "wifi", "list"],
+                capture_output=True, text=True, timeout=15,
+            )
+            if proc.returncode != 0:
+                return None
+            results: List[ScanResult] = []
+            seen: Set[str] = set()
+            for line in proc.stdout.strip().split("\n"):
+                if not line:
+                    continue
+                # nmcli -t 模式中值内的 : 被转义为 \:, 按非转义 : 分割
+                parts = re.split(r'(?<!\\):', line)
+                parts = [p.replace('\\:', ':') for p in parts]
+                if len(parts) < 5:
+                    continue
+                ssid = parts[0]
+                bssid = parts[1]
+                if not bssid or bssid in seen:
+                    continue
+                seen.add(bssid)
+                sr = ScanResult()
+                sr.SSID = ssid
+                sr.BSSID = bssid
+                try:
+                    sr.level = int(parts[2]) if parts[2] else 0
+                except ValueError:
+                    sr.level = 0
+                try:
+                    sr.frequency = int(float(parts[3])) if parts[3] else 0
+                except ValueError:
+                    sr.frequency = 0
+                sr.capabilities = parts[4] if len(parts) > 4 else ""
+                results.append(sr)
+            return results
+        except Exception:
+            return None
+
     def startScan(self) -> bool:
         return True
 
     def setWifiEnabled(self, enabled: bool) -> bool:
+        if _USE_LINUX:
+            import subprocess
+            import shutil
+            try:
+                cmd = ["nmcli", "radio", "wifi", "on" if enabled else "off"]
+                proc = subprocess.run(cmd, capture_output=True, text=True, timeout=5)
+                if proc.returncode != 0 and shutil.which("rfkill"):
+                    # 回退到 rfkill
+                    rfkill_cmd = (["rfkill", "unblock", "wifi"] if enabled
+                                  else ["rfkill", "block", "wifi"])
+                    subprocess.run(rfkill_cmd, capture_output=True, timeout=5)
+            except Exception:
+                pass
         self._wifi_enabled = enabled
         self._wifi_state = self.WIFI_STATE_ENABLED if enabled else self.WIFI_STATE_DISABLED
         return True