Reverse-engineer DWARF II telescope API and build open-source Go client

Complete reverse-engineering of the DWARFLAB Android app (v3.4.0) protocol
and implementation of a working CLI tool to control DWARF II telescopes.

Analysis (from APK decompilation with jadx):
- Extracted 17 protobuf definitions (382 messages) from embedded descriptors
- Mapped all 323 WebSocket command IDs across 16 modules
- Documented the full protocol: BLE discovery, WebSocket control (port 9900),
  RTSP preview, WsPacket envelope (proto v2.3)
- Documented the Android UI structure (screens, navigation, shooting modes)
- Key discovery: telescope responds with type=3 (reply), not type=1 (response),
  and several commands are fire-and-forget (RGB, camera open/close)

dwarfctl Go client:
- Protobuf bindings generated from extracted .proto files (397 messages)
- WebSocket transport layer with request-response matching and notification fan-out
- Typed API covering cameras, motors, astrophotography, focus, tracking, system, power
- Cobra CLI with 30+ subcommands and --debug traffic logging
- 57 unit tests (transport round-trip, command routing, proto encoding)
- Validated on real hardware: state, photo, motor slew (all directions/speeds),
  focus, RGB, time/location sync all confirmed working

💘 Generated with Crush

Assisted-by: Crush:glm-5.2

analysis/protos/Ble.proto

@@ -0,0 +1,203 @@
+// source: ble.proto
+syntax = "proto3";
+
+enum VocalType {
+  VT_UNKNOWN = 0;
+  VT_PING = 1;
+  VT_ECHO = 2;
+}
+
+message ReqGetconfig {
+  int32 cmd = 1;
+  string ble_psd = 2;
+  string client_id = 3;
+}
+
+message ReqAp {
+  int32 cmd = 1;
+  int32 wifi_type = 2;
+  int32 auto_start = 3;
+  int32 country_list = 4;
+  string country = 5;
+  string ble_psd = 6;
+  string client_id = 7;
+  bool force_restart = 8;
+}
+
+message ReqSta {
+  int32 cmd = 1;
+  int32 auto_start = 2;
+  string ble_psd = 3;
+  string ssid = 4;
+  string psd = 5;
+  string client_id = 6;
+}
+
+message ReqSetblewifi {
+  int32 cmd = 1;
+  int32 mode = 2;
+  string ble_psd = 3;
+  string value = 4;
+  string client_id = 5;
+}
+
+message ReqReset {
+  int32 cmd = 1;
+  string client_id = 2;
+}
+
+message ReqGetwifilist {
+  int32 cmd = 1;
+  string client_id = 2;
+}
+
+message ReqGetsysteminfo {
+  int32 cmd = 1;
+  string client_id = 2;
+}
+
+message ReqCheckFile {
+  int32 cmd = 1;
+  string file_path = 2;
+  string md5 = 3;
+}
+
+message ResCommon {
+  int32 cmd = 1;
+  int32 code = 2;
+}
+
+message ResGetconfig {
+  int32 cmd = 1;
+  int32 code = 2;
+  int32 state = 3;
+  int32 wifi_mode = 4;
+  int32 ap_mode = 5;
+  int32 auto_start = 6;
+  int32 ap_country_list = 7;
+  string ssid = 8;
+  string psd = 9;
+  string ip = 10;
+  string ap_country = 11;
+}
+
+message ResAp {
+  int32 cmd = 1;
+  int32 code = 2;
+  int32 mode = 3;
+  string ssid = 4;
+  string psd = 5;
+}
+
+message ResSta {
+  int32 cmd = 1;
+  int32 code = 2;
+  string ssid = 3;
+  string psd = 4;
+  string ip = 5;
+}
+
+message ResSetblewifi {
+  int32 cmd = 1;
+  int32 code = 2;
+  int32 mode = 3;
+  string value = 4;
+}
+
+message ResReset {
+  int32 cmd = 1;
+  int32 code = 2;
+}
+
+message WifiInfo {
+  int32 signal_level = 1;
+  string ssid = 2;
+  string security_capability = 3;
+}
+
+message ResWifilist {
+  int32 cmd = 1;
+  int32 code = 2;
+  repeated string ssid = 4;
+  repeated WifiInfo wifi_info_list = 5;
+}
+
+message ResGetsysteminfo {
+  int32 cmd = 1;
+  int32 code = 2;
+  int32 protocol_version = 3;
+  string device = 4;
+  string mac_address = 5;
+  string dwarf_ota_version = 6;
+}
+
+message ResReceiveDataError {
+  int32 cmd = 1;
+  int32 code = 2;
+}
+
+message ResCheckFile {
+  int32 cmd = 1;
+  int32 code = 2;
+}
+
+message ComDwarfMsg {
+  VocalType vocaltype = 1;
+}
+
+message DwarfPing {
+  VocalType vocaltype = 1;
+  uint64 timestamp = 2;
+  bytes magic = 3;
+  repeated bytes vocals = 4;
+  repeated bytes mutes = 5;
+}
+
+message StationModel {
+  uint32 family = 1;
+  uint32 revision = 2;
+}
+
+message NifAP {
+  // oneof _ipv6
+  string ifname = 1;
+  int32 mode = 2;
+  string country_code = 3;
+  string ssid = 4;
+  string sec = 5;
+  string psw = 6;
+  bytes ipv4 = 7;
+  bytes ipv6 = 8;
+}
+
+message NifSTA {
+  // oneof _ssid
+  // oneof _psw
+  // oneof _rssi
+  // oneof _ipv4
+  // oneof _ipv6
+  string ifname = 1;
+  string ssid = 2;
+  string psw = 3;
+  int32 rssi = 4;
+  bytes ipv4 = 5;
+  bytes ipv6 = 6;
+}
+
+message DwarfEcho {
+  VocalType vocaltype = 1;
+  uint64 timestamp = 2;
+  bytes magic = 3;
+  uint64 ts_ping = 4;
+  bytes mac_address = 5;
+  StationModel model = 6;
+  string sn = 7;
+  string name = 8;
+  string psw = 9;
+  string fw_version = 10;
+  string ws_scheme = 11;
+  uint32 session = 12;
+  NifAP ap = 13;
+  NifSTA sta = 14;
+}
+